- Linux-kselftest-mirror - lists.linaro.org

selftests: # Warning: file test_ingress_egress_chaining.sh is not executable

by Naresh Kamboju

kselftest net test_ingress_egress_chaining.sh seems to be missing file execute permissions. Do you notice at your end ? # selftests: net: test_ingress_egress_chaining.sh # Warning: file test_ingress_egress_chaining.sh is not executable https://lkft.validation.linaro.org/scheduler/job/6339612#L8152 https://qa-reports.linaro.org/lkft/linux-mainline-master/build/v6.3-rc6-16-… https://qa-reports.linaro.org/lkft/linux-mainline-master/build/v6.3-rc6-16-… -- Linaro LKFT https://lkft.linaro.org

2 years, 6 months

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[PATCH v5 00/17] Add iommufd physical device operations for replace and alloc hwpt

by Jason Gunthorpe

This is the basic functionality for iommufd to support iommufd_device_replace() and IOMMU_HWPT_ALLOC for physical devices. iommufd_device_replace() allows changing the HWPT associated with the device to a new IOAS or HWPT. Replace does this in way that failure leaves things unchanged, and utilizes the iommu iommu_group_replace_domain() API to allow the iommu driver to perform an optional non-disruptive change. IOMMU_HWPT_ALLOC allows HWPTs to be explicitly allocated by the user and used by attach or replace. At this point it isn't very useful since the HWPT is the same as the automatically managed HWPT from the IOAS. However a following series will allow userspace to customize the created HWPT. The implementation is complicated because we have to introduce some per-iommu_group memory in iommufd and redo how we think about multi-device groups to be more explicit. This solves all the locking problems in the prior attempts. This series is infrastructure work for the following series which: - Add replace for attach - Expose replace through VFIO APIs - Implement driver parameters for HWPT creation (nesting) I'll update the linux-next branch with this version and keep it on a side branch and accumulate the following series when they are ready so we can have a stable base and make more incremental progress. When we have all the parts together to get a full implementation it can go to Linus. This is on github: https://github.com/jgunthorpe/linux/commits/iommufd_hwpt v5: - Got back to the v3 version of the code, keep the comment changes from v4. Syzkaller says the group lock change in v4 didn't work. - Adjust the fail_nth test to cover the path syzkaller found. We need to have an ioas with a mapped page installed to inject a failure during domain attachment. v4: https://lore.kernel.org/r/0-v4-9cd79ad52ee8+13f5-iommufd_alloc_jgg@nvidia.c… - Refine comments and commit messages - Move the group lock into iommufd_hw_pagetable_attach() - Fix error unwind in iommufd_device_do_replace() v3: https://lore.kernel.org/r/0-v3-61d41fd9e13e+1f5-iommufd_alloc_jgg@nvidia.com - Refine comments and commit messages - Adjust the flow in iommufd_device_auto_get_domain() so pt_id is only set on success - Reject replace on non-attached devices - Add missing __reserved check for IOMMU_HWPT_ALLOC v2: https://lore.kernel.org/r/0-v2-51b9896e7862+8a8c-iommufd_alloc_jgg@nvidia.c… - Use WARN_ON for the igroup->group test and move that logic to a function iommufd_group_try_get() - Change igroup->devices to igroup->device list Replace will need to iterate over all attached idevs - Rename to iommufd_group_setup_msi() - New patch to export iommu_get_resv_regions() - New patch to use per-device reserved regions instead of per-group regions - Split out the reorganizing of iommufd_device_change_pt() from the replace patch - Replace uses the per-dev reserved regions - Use stdev_id in a few more places in the selftest - Fix error handling in IOMMU_HWPT_ALLOC - Clarify comments - Rebase on v6.3-rc1 v1: https://lore.kernel.org/all/0-v1-7612f88c19f5+2f21-iommufd_alloc_jgg@nvidia… Jason Gunthorpe (15): iommufd: Move isolated msi enforcement to iommufd_device_bind() iommufd: Add iommufd_group iommufd: Replace the hwpt->devices list with iommufd_group iommu: Export iommu_get_resv_regions() iommufd: Keep track of each device's reserved regions instead of groups iommufd: Use the iommufd_group to avoid duplicate MSI setup iommufd: Make sw_msi_start a group global iommufd: Move putting a hwpt to a helper function iommufd: Add enforced_cache_coherency to iommufd_hw_pagetable_alloc() iommufd: Reorganize iommufd_device_attach into iommufd_device_change_pt iommufd: Add iommufd_device_replace() iommufd: Make destroy_rwsem use a lock class per object type iommufd: Add IOMMU_HWPT_ALLOC iommufd/selftest: Return the real idev id from selftest mock_domain iommufd/selftest: Add a selftest for IOMMU_HWPT_ALLOC Nicolin Chen (2): iommu: Introduce a new iommu_group_replace_domain() API iommufd/selftest: Test iommufd_device_replace() drivers/iommu/iommu-priv.h | 10 + drivers/iommu/iommu.c | 41 +- drivers/iommu/iommufd/device.c | 516 +++++++++++++----- drivers/iommu/iommufd/hw_pagetable.c | 96 +++- drivers/iommu/iommufd/io_pagetable.c | 27 +- drivers/iommu/iommufd/iommufd_private.h | 51 +- drivers/iommu/iommufd/iommufd_test.h | 6 + drivers/iommu/iommufd/main.c | 17 +- drivers/iommu/iommufd/selftest.c | 40 ++ include/linux/iommufd.h | 1 + include/uapi/linux/iommufd.h | 26 + tools/testing/selftests/iommu/iommufd.c | 67 ++- .../selftests/iommu/iommufd_fail_nth.c | 67 ++- tools/testing/selftests/iommu/iommufd_utils.h | 63 ++- 14 files changed, 825 insertions(+), 203 deletions(-) create mode 100644 drivers/iommu/iommu-priv.h base-commit: fd8c1a4aee973e87d890a5861e106625a33b2c4e -- 2.40.0

2 years, 6 months

1
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[PATCH 1/3] kunit: add parameter generation macro using description from array

by benjamin＠sipsolutions.net

From: Benjamin Berg <benjamin.berg(a)intel.com> The existing KUNIT_ARRAY_PARAM macro requires a separate function to get the description. However, in a lot of cases the description can just be copied directly from the array. Add a second macro that avoids having to write a static function just for a single strscpy. Signed-off-by: Benjamin Berg <benjamin.berg(a)intel.com> --- include/kunit/test.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/include/kunit/test.h b/include/kunit/test.h index 08d3559dd703..519b90261c72 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -1414,6 +1414,25 @@ do { \ return NULL; \ } +/** + * KUNIT_ARRAY_PARAM_DESC() - Define test parameter generator from an array. + * @name: prefix for the test parameter generator function. + * @array: array of test parameters. + * @desc_member: structure member from array element to use as description + * + * Define function @name_gen_params which uses @array to generate parameters. + */ +#define KUNIT_ARRAY_PARAM_DESC(name, array, desc_member) \ + static const void *name##_gen_params(const void *prev, char *desc) \ + { \ + typeof((array)[0]) *__next = prev ? ((typeof(__next)) prev) + 1 : (array); \ + if (__next - (array) < ARRAY_SIZE((array))) { \ + strscpy(desc, __next->desc_member, KUNIT_PARAM_DESC_SIZE); \ + return __next; \ + } \ + return NULL; \ + } + // TODO(dlatypov(a)google.com): consider eventually migrating users to explicitly // include resource.h themselves if they need it. #include <kunit/resource.h> -- 2.39.2

2 years, 6 months

4
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[PATCH] mm/huge_memory: conditionally call maybe_mkwrite() and drop pte_wrprotect() in __split_huge_pmd_locked()

by David Hildenbrand

No need to call maybe_mkwrite() to then wrprotect if the source PMD was not writable. It's worth nothing that this now allows for PTEs to be writable even if the source PMD was not writable: if vma->vm_page_prot includes write permissions. As documented in commit 931298e103c2 ("mm/userfaultfd: rely on vma->vm_page_prot in uffd_wp_range()"), any mechanism that intends to have pages wrprotected (COW, writenotify, mprotect, uffd-wp, softdirty, ...) has to properly adjust vma->vm_page_prot upfront, to not include write permissions. If vma->vm_page_prot includes write permissions, the PTE/PMD can be writable as default. This now mimics the handling in mm/migrate.c:remove_migration_pte() and in mm/huge_memory.c:remove_migration_pmd(), which has been in place for a long time (except that 96a9c287e25d ("mm/migrate: fix wrongly apply write bit after mkdirty on sparc64") temporarily changed it). Signed-off-by: David Hildenbrand <david(a)redhat.com> --- mm/huge_memory.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 6f3af65435c8..8332e16ac97b 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2235,11 +2235,10 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd, entry = pte_swp_mkuffd_wp(entry); } else { entry = mk_pte(page + i, READ_ONCE(vma->vm_page_prot)); - entry = maybe_mkwrite(entry, vma); + if (write) + entry = maybe_mkwrite(entry, vma); if (anon_exclusive) SetPageAnonExclusive(page + i); - if (!write) - entry = pte_wrprotect(entry); if (!young) entry = pte_mkold(entry); /* NOTE: this may set soft-dirty too on some archs */ -- 2.39.2

2 years, 6 months

1
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[PATCH net-next v3 4/4] selftests: net: add SCM_PIDFD / SO_PEERPIDFD test

by Alexander Mikhalitsyn

Basic test to check consistency between: - SCM_CREDENTIALS and SCM_PIDFD - SO_PEERCRED and SO_PEERPIDFD Cc: "David S. Miller" <davem(a)davemloft.net> Cc: Eric Dumazet <edumazet(a)google.com> Cc: Jakub Kicinski <kuba(a)kernel.org> Cc: Paolo Abeni <pabeni(a)redhat.com> Cc: Leon Romanovsky <leon(a)kernel.org> Cc: David Ahern <dsahern(a)kernel.org> Cc: Arnd Bergmann <arnd(a)arndb.de> Cc: Kees Cook <keescook(a)chromium.org> Cc: Christian Brauner <brauner(a)kernel.org> Cc: Kuniyuki Iwashima <kuniyu(a)amazon.com> Cc: linux-kernel(a)vger.kernel.org Cc: netdev(a)vger.kernel.org Cc: linux-arch(a)vger.kernel.org Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn(a)canonical.com> --- v3: - started using kselftest lib (thanks to Kuniyuki Iwashima for suggestion/review) - now test covers abstract sockets too and SOCK_DGRAM sockets --- tools/testing/selftests/net/.gitignore | 1 + tools/testing/selftests/net/af_unix/Makefile | 2 +- .../testing/selftests/net/af_unix/scm_pidfd.c | 430 ++++++++++++++++++ 3 files changed, 432 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/net/af_unix/scm_pidfd.c diff --git a/tools/testing/selftests/net/.gitignore b/tools/testing/selftests/net/.gitignore index 80f06aa62034..83fd1ebd34ec 100644 --- a/tools/testing/selftests/net/.gitignore +++ b/tools/testing/selftests/net/.gitignore @@ -26,6 +26,7 @@ reuseport_bpf_cpu reuseport_bpf_numa reuseport_dualstack rxtimestamp +scm_pidfd sk_bind_sendto_listen sk_connect_zero_addr socket diff --git a/tools/testing/selftests/net/af_unix/Makefile b/tools/testing/selftests/net/af_unix/Makefile index 1e4b397cece6..f5ca9da8c4d5 100644 --- a/tools/testing/selftests/net/af_unix/Makefile +++ b/tools/testing/selftests/net/af_unix/Makefile @@ -1,3 +1,3 @@ -TEST_GEN_PROGS := diag_uid test_unix_oob unix_connect +TEST_GEN_PROGS := diag_uid test_unix_oob unix_connect scm_pidfd include ../../lib.mk diff --git a/tools/testing/selftests/net/af_unix/scm_pidfd.c b/tools/testing/selftests/net/af_unix/scm_pidfd.c new file mode 100644 index 000000000000..a86222143d79 --- /dev/null +++ b/tools/testing/selftests/net/af_unix/scm_pidfd.c @@ -0,0 +1,430 @@ +// SPDX-License-Identifier: GPL-2.0 OR MIT +#define _GNU_SOURCE +#include <error.h> +#include <limits.h> +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/socket.h> +#include <linux/socket.h> +#include <unistd.h> +#include <string.h> +#include <errno.h> +#include <sys/un.h> +#include <sys/signal.h> +#include <sys/types.h> +#include <sys/wait.h> + +#include "../../kselftest_harness.h" + +#define clean_errno() (errno == 0 ? "None" : strerror(errno)) +#define log_err(MSG, ...) \ + fprintf(stderr, "(%s:%d: errno: %s) " MSG "\n", __FILE__, __LINE__, \ + clean_errno(), ##__VA_ARGS__) + +#ifndef SCM_PIDFD +#define SCM_PIDFD 0x04 +#endif + +static void child_die() +{ + exit(1); +} + +static int safe_int(const char *numstr, int *converted) +{ + char *err = NULL; + long sli; + + errno = 0; + sli = strtol(numstr, &err, 0); + if (errno == ERANGE && (sli == LONG_MAX || sli == LONG_MIN)) + return -ERANGE; + + if (errno != 0 && sli == 0) + return -EINVAL; + + if (err == numstr || *err != '\0') + return -EINVAL; + + if (sli > INT_MAX || sli < INT_MIN) + return -ERANGE; + + *converted = (int)sli; + return 0; +} + +static int char_left_gc(const char *buffer, size_t len) +{ + size_t i; + + for (i = 0; i < len; i++) { + if (buffer[i] == ' ' || buffer[i] == '\t') + continue; + + return i; + } + + return 0; +} + +static int char_right_gc(const char *buffer, size_t len) +{ + int i; + + for (i = len - 1; i >= 0; i--) { + if (buffer[i] == ' ' || buffer[i] == '\t' || + buffer[i] == '\n' || buffer[i] == '\0') + continue; + + return i + 1; + } + + return 0; +} + +static char *trim_whitespace_in_place(char *buffer) +{ + buffer += char_left_gc(buffer, strlen(buffer)); + buffer[char_right_gc(buffer, strlen(buffer))] = '\0'; + return buffer; +} + +/* borrowed (with all helpers) from pidfd/pidfd_open_test.c */ +static pid_t get_pid_from_fdinfo_file(int pidfd, const char *key, size_t keylen) +{ + int ret; + char path[512]; + FILE *f; + size_t n = 0; + pid_t result = -1; + char *line = NULL; + + snprintf(path, sizeof(path), "/proc/self/fdinfo/%d", pidfd); + + f = fopen(path, "re"); + if (!f) + return -1; + + while (getline(&line, &n, f) != -1) { + char *numstr; + + if (strncmp(line, key, keylen)) + continue; + + numstr = trim_whitespace_in_place(line + 4); + ret = safe_int(numstr, &result); + if (ret < 0) + goto out; + + break; + } + +out: + free(line); + fclose(f); + return result; +} + +static int cmsg_check(int fd) +{ + struct msghdr msg = { 0 }; + struct cmsghdr *cmsg; + struct iovec iov; + struct ucred *ucred = NULL; + int data = 0; + char control[CMSG_SPACE(sizeof(struct ucred)) + + CMSG_SPACE(sizeof(int))] = { 0 }; + int *pidfd = NULL; + pid_t parent_pid; + int err; + + iov.iov_base = &data; + iov.iov_len = sizeof(data); + + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + msg.msg_control = control; + msg.msg_controllen = sizeof(control); + + err = recvmsg(fd, &msg, 0); + if (err < 0) { + log_err("recvmsg"); + return 1; + } + + if (msg.msg_flags & (MSG_TRUNC | MSG_CTRUNC)) { + log_err("recvmsg: truncated"); + return 1; + } + + for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL; + cmsg = CMSG_NXTHDR(&msg, cmsg)) { + if (cmsg->cmsg_level == SOL_SOCKET && + cmsg->cmsg_type == SCM_PIDFD) { + if (cmsg->cmsg_len < sizeof(*pidfd)) { + log_err("CMSG parse: SCM_PIDFD wrong len"); + return 1; + } + + pidfd = (void *)CMSG_DATA(cmsg); + } + + if (cmsg->cmsg_level == SOL_SOCKET && + cmsg->cmsg_type == SCM_CREDENTIALS) { + if (cmsg->cmsg_len < sizeof(*ucred)) { + log_err("CMSG parse: SCM_CREDENTIALS wrong len"); + return 1; + } + + ucred = (void *)CMSG_DATA(cmsg); + } + } + + /* send(pfd, "x", sizeof(char), 0) */ + if (data != 'x') { + log_err("recvmsg: data corruption"); + return 1; + } + + if (!pidfd) { + log_err("CMSG parse: SCM_PIDFD not found"); + return 1; + } + + if (!ucred) { + log_err("CMSG parse: SCM_CREDENTIALS not found"); + return 1; + } + + /* pidfd from SCM_PIDFD should point to the parent process PID */ + parent_pid = + get_pid_from_fdinfo_file(*pidfd, "Pid:", sizeof("Pid:") - 1); + if (parent_pid != getppid()) { + log_err("wrong SCM_PIDFD %d != %d", parent_pid, getppid()); + return 1; + } + + return 0; +} + +struct sock_addr { + char sock_name[32]; + struct sockaddr_un listen_addr; + socklen_t addrlen; +}; + +FIXTURE(scm_pidfd) +{ + int server; + pid_t client_pid; + int startup_pipe[2]; + struct sock_addr server_addr; + struct sock_addr *client_addr; +}; + +FIXTURE_VARIANT(scm_pidfd) +{ + int type; + bool abstract; +}; + +FIXTURE_VARIANT_ADD(scm_pidfd, stream_pathname) +{ + .type = SOCK_STREAM, + .abstract = 0, +}; + +FIXTURE_VARIANT_ADD(scm_pidfd, stream_abstract) +{ + .type = SOCK_STREAM, + .abstract = 1, +}; + +FIXTURE_VARIANT_ADD(scm_pidfd, dgram_pathname) +{ + .type = SOCK_DGRAM, + .abstract = 0, +}; + +FIXTURE_VARIANT_ADD(scm_pidfd, dgram_abstract) +{ + .type = SOCK_DGRAM, + .abstract = 1, +}; + +FIXTURE_SETUP(scm_pidfd) +{ + self->client_addr = mmap(NULL, sizeof(*self->client_addr), PROT_READ | PROT_WRITE, + MAP_SHARED | MAP_ANONYMOUS, -1, 0); + ASSERT_NE(MAP_FAILED, self->client_addr); +} + +FIXTURE_TEARDOWN(scm_pidfd) +{ + close(self->server); + + kill(self->client_pid, SIGKILL); + waitpid(self->client_pid, NULL, 0); + + if (!variant->abstract) { + unlink(self->server_addr.sock_name); + unlink(self->client_addr->sock_name); + } +} + +static void fill_sockaddr(struct sock_addr *addr, bool abstract) +{ + char *sun_path_buf = (char *)&addr->listen_addr.sun_path; + + addr->listen_addr.sun_family = AF_UNIX; + addr->addrlen = offsetof(struct sockaddr_un, sun_path); + snprintf(addr->sock_name, sizeof(addr->sock_name), "scm_pidfd_%d", getpid()); + addr->addrlen += strlen(addr->sock_name); + if (abstract) { + *sun_path_buf = '\0'; + addr->addrlen++; + sun_path_buf++; + } else { + unlink(addr->sock_name); + } + memcpy(sun_path_buf, addr->sock_name, strlen(addr->sock_name)); +} + +static void client(FIXTURE_DATA(scm_pidfd) *self, + const FIXTURE_VARIANT(scm_pidfd) *variant) +{ + int err; + int cfd; + socklen_t len; + struct ucred peer_cred; + int peer_pidfd; + pid_t peer_pid; + int on = 0; + + cfd = socket(AF_UNIX, variant->type, 0); + if (cfd < 0) { + log_err("socket"); + child_die(); + } + + if (variant->type == SOCK_DGRAM) { + fill_sockaddr(self->client_addr, variant->abstract); + + if (bind(cfd, (struct sockaddr *)&self->client_addr->listen_addr, self->client_addr->addrlen)) { + log_err("bind"); + child_die(); + } + } + + if (connect(cfd, (struct sockaddr *)&self->server_addr.listen_addr, + self->server_addr.addrlen) != 0) { + log_err("connect"); + child_die(); + } + + on = 1; + if (setsockopt(cfd, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on))) { + log_err("Failed to set SO_PASSCRED"); + child_die(); + } + + if (setsockopt(cfd, SOL_SOCKET, SO_PASSPIDFD, &on, sizeof(on))) { + log_err("Failed to set SO_PASSPIDFD"); + child_die(); + } + + close(self->startup_pipe[1]); + + if (cmsg_check(cfd)) { + log_err("cmsg_check failed"); + child_die(); + } + + /* skip further for SOCK_DGRAM as it's not applicable */ + if (variant->type == SOCK_DGRAM) + return; + + len = sizeof(peer_cred); + if (getsockopt(cfd, SOL_SOCKET, SO_PEERCRED, &peer_cred, &len)) { + log_err("Failed to get SO_PEERCRED"); + child_die(); + } + + len = sizeof(peer_pidfd); + if (getsockopt(cfd, SOL_SOCKET, SO_PEERPIDFD, &peer_pidfd, &len)) { + log_err("Failed to get SO_PEERPIDFD"); + child_die(); + } + + /* pid from SO_PEERCRED should point to the parent process PID */ + if (peer_cred.pid != getppid()) { + log_err("peer_cred.pid != getppid(): %d != %d", peer_cred.pid, getppid()); + child_die(); + } + + peer_pid = get_pid_from_fdinfo_file(peer_pidfd, + "Pid:", sizeof("Pid:") - 1); + if (peer_pid != peer_cred.pid) { + log_err("peer_pid != peer_cred.pid: %d != %d", peer_pid, peer_cred.pid); + child_die(); + } +} + +TEST_F(scm_pidfd, test) +{ + int err; + int pfd; + int child_status = 0; + + self->server = socket(AF_UNIX, variant->type, 0); + ASSERT_NE(-1, self->server); + + fill_sockaddr(&self->server_addr, variant->abstract); + + err = bind(self->server, (struct sockaddr *)&self->server_addr.listen_addr, self->server_addr.addrlen); + ASSERT_EQ(0, err); + + if (variant->type == SOCK_STREAM) { + err = listen(self->server, 1); + ASSERT_EQ(0, err); + } + + err = pipe(self->startup_pipe); + ASSERT_NE(-1, err); + + self->client_pid = fork(); + ASSERT_NE(-1, self->client_pid); + if (self->client_pid == 0) { + close(self->server); + close(self->startup_pipe[0]); + client(self, variant); + exit(0); + } + close(self->startup_pipe[1]); + + if (variant->type == SOCK_STREAM) { + pfd = accept(self->server, NULL, NULL); + ASSERT_NE(-1, pfd); + } else { + pfd = self->server; + } + + /* wait until the child arrives at checkpoint */ + read(self->startup_pipe[0], &err, sizeof(int)); + close(self->startup_pipe[0]); + + if (variant->type == SOCK_DGRAM) { + err = sendto(pfd, "x", sizeof(char), 0, (struct sockaddr *)&self->client_addr->listen_addr, self->client_addr->addrlen); + ASSERT_NE(-1, err); + } else { + err = send(pfd, "x", sizeof(char), 0); + ASSERT_NE(-1, err); + } + + close(pfd); + waitpid(self->client_pid, &child_status, 0); + ASSERT_EQ(0, WIFEXITED(child_status) ? WEXITSTATUS(child_status) : 1); +} + +TEST_HARNESS_MAIN -- 2.34.1

2 years, 6 months

1
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[PATCH v6 0/4] Add IO page table replacement support

by Nicolin Chen

[ This series depends on the VFIO device cdev series ] Changelog v6: * Rebased on top of cdev v8 series https://lore.kernel.org/kvm/20230327094047.47215-1-yi.l.liu@intel.com/ * Added "Reviewed-by" from Kevin to PATCH-4 * Squashed access->ioas updating lines into iommufd_access_change_pt(), and changed function return type accordingly for simplification. v5: https://lore.kernel.org/linux-iommu/cover.1679559476.git.nicolinc@nvidia.co… * Kept the cmd->id in the iommufd_test_create_access() so the access can be created with an ioas by default. Then, renamed the previous ioctl IOMMU_TEST_OP_ACCESS_SET_IOAS to IOMMU_TEST_OP_ACCESS_REPLACE_IOAS, so it would be used to replace an access->ioas pointer. * Added iommufd_access_replace() API after the introductions of the other two APIs iommufd_access_attach() and iommufd_access_detach(). * Since vdev->iommufd_attached is also set in emulated pathway too, call iommufd_access_update(), similar to the physical pathway. v4: https://lore.kernel.org/linux-iommu/cover.1678284812.git.nicolinc@nvidia.co… * Rebased on top of Jason's series adding replace() and hwpt_alloc() https://lore.kernel.org/linux-iommu/0-v2-51b9896e7862+8a8c-iommufd_alloc_jg… * Rebased on top of cdev series v6 https://lore.kernel.org/kvm/20230308132903.465159-1-yi.l.liu@intel.com/ * Dropped the patch that's moved to cdev series. * Added unmap function pointer sanity before calling it. * Added "Reviewed-by" from Kevin and Yi. * Added back the VFIO change updating the ATTACH uAPI. v3: https://lore.kernel.org/linux-iommu/cover.1677288789.git.nicolinc@nvidia.co… * Rebased on top of Jason's iommufd_hwpt branch: https://lore.kernel.org/linux-iommu/0-v2-406f7ac07936+6a-iommufd_hwpt_jgg@n… * Dropped patches from this series accordingly. There were a couple of VFIO patches that will be submitted after the VFIO cdev series. Also, renamed the series to be "emulated". * Moved dma_unmap sanity patch to the first in the series. * Moved dma_unmap sanity to cover both VFIO and IOMMUFD pathways. * Added Kevin's "Reviewed-by" to two of the patches. * Fixed a NULL pointer bug in vfio_iommufd_emulated_bind(). * Moved unmap() call to the common place in iommufd_access_set_ioas(). v2: https://lore.kernel.org/linux-iommu/cover.1675802050.git.nicolinc@nvidia.co… * Rebased on top of vfio_device cdev v2 series. * Update the kdoc and commit message of iommu_group_replace_domain(). * Dropped revert-to-core-domain part in iommu_group_replace_domain(). * Dropped !ops->dma_unmap check in vfio_iommufd_emulated_attach_ioas(). * Added missing rc value in vfio_iommufd_emulated_attach_ioas() from the iommufd_access_set_ioas() call. * Added a new patch in vfio_main to deny vfio_pin/unpin_pages() calls if vdev->ops->dma_unmap is not implemented. * Added a __iommmufd_device_detach helper and let the replace routine do a partial detach(). * Added restriction on auto_domains to use the replace feature. * Added the patch "iommufd/device: Make hwpt_list list_add/del symmetric" from the has_group removal series. v1: https://lore.kernel.org/linux-iommu/cover.1675320212.git.nicolinc@nvidia.co… Hi all, The existing IOMMU APIs provide a pair of functions: iommu_attach_group() for callers to attach a device from the default_domain (NULL if not being supported) to a given iommu domain, and iommu_detach_group() for callers to detach a device from a given domain to the default_domain. Internally, the detach_dev op is deprecated for the newer drivers with default_domain. This means that those drivers likely can switch an attaching domain to another one, without stagging the device at a blocking or default domain, for use cases such as: 1) vPASID mode, when a guest wants to replace a single pasid (PASID=0) table with a larger table (PASID=N) 2) Nesting mode, when switching the attaching device from an S2 domain to an S1 domain, or when switching between relevant S1 domains. This series is rebased on top of Jason Gunthorpe's series that introduces iommu_group_replace_domain API and IOMMUFD infrastructure for the IOMMUFD "physical" devices. The IOMMUFD "emulated" deivces will need some extra steps to replace the access->ioas object and its iopt pointer. You can also find this series on Github: https://github.com/nicolinc/iommufd/commits/iommu_group_replace_domain-v6 Thank you Nicolin Chen Nicolin Chen (4): vfio: Do not allow !ops->dma_unmap in vfio_pin/unpin_pages() iommufd: Add iommufd_access_replace() API iommufd/selftest: Add IOMMU_TEST_OP_ACCESS_REPLACE_IOAS coverage vfio: Support IO page table replacement drivers/iommu/iommufd/device.c | 53 ++++++++++++++----- drivers/iommu/iommufd/iommufd_test.h | 4 ++ drivers/iommu/iommufd/selftest.c | 19 +++++++ drivers/vfio/iommufd.c | 11 ++-- drivers/vfio/vfio_main.c | 4 ++ include/linux/iommufd.h | 1 + include/uapi/linux/vfio.h | 6 +++ tools/testing/selftests/iommu/iommfd*.c | 0 tools/testing/selftests/iommu/iommufd.c | 29 +++++++++- tools/testing/selftests/iommu/iommufd_utils.h | 19 +++++++ 10 files changed, 127 insertions(+), 19 deletions(-) create mode 100644 tools/testing/selftests/iommu/iommfd*.c -- 2.40.0

2 years, 6 months

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kselftest/next kselftest-seccomp: 7 runs, 4 regressions (v6.3-rc1-14-g5874a6a187f2)

by kernelci.org bot

kselftest/next kselftest-seccomp: 7 runs, 4 regressions (v6.3-rc1-14-g5874a6a187f2) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/next/kernel/v6.3-rc1-14-g587… Test: kselftest-seccomp Tree: kselftest Branch: next Describe: v6.3-rc1-14-g5874a6a187f2 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 5874a6a187f2e814542d7fdf918fd29f79ff25c3 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/64347bb1c164166bc52e8608 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig+kselftest Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm/… HTML log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm/… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023040… * kselftest-seccomp.login: https://kernelci.org/test/case/id/64347bb1c164166bc52e8609 failing since 104 days (last pass: v6.1-rc1-24-gd5ba85d6d8be, first fail: v6.2-rc1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/64348b1d05a44e02062e8611 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… HTML log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023040… * kselftest-seccomp.login: https://kernelci.org/test/case/id/64348b1d05a44e02062e8612 failing since 172 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1-1-gde3ee3f63400a) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/643480b506d514599c2e8606 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… HTML log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023040… * kselftest-seccomp.login: https://kernelci.org/test/case/id/643480b506d514599c2e8607 failing since 174 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/6434878c95927633232e8691 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… HTML log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023040… * kselftest-seccomp.login: https://kernelci.org/test/case/id/6434878c95927633232e8692 failing since 174 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1)

2 years, 6 months

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kselftest/next kselftest-lkdtm: 4 runs, 3 regressions (v6.3-rc1-14-g5874a6a187f2)

by kernelci.org bot

kselftest/next kselftest-lkdtm: 4 runs, 3 regressions (v6.3-rc1-14-g5874a6a187f2) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/next/kernel/v6.3-rc1-14-g587… Test: kselftest-lkdtm Tree: kselftest Branch: next Describe: v6.3-rc1-14-g5874a6a187f2 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 5874a6a187f2e814542d7fdf918fd29f79ff25c3 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/64347be74c89b6021d2e85f0 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig+kselftest Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm/… HTML log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm/… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023040… * kselftest-lkdtm.login: https://kernelci.org/test/case/id/64347be74c89b6021d2e85f1 failing since 131 days (last pass: v6.1-rc1-23-g00dd59519141, first fail: v6.1-rc1-23-g8008d88e6d16) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/6434812f32b8898c522e85f1 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… HTML log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023040… * kselftest-lkdtm.login: https://kernelci.org/test/case/id/6434812f32b8898c522e85f2 failing since 174 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/6434863a382be783322e860d Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… HTML log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023040… * kselftest-lkdtm.login: https://kernelci.org/test/case/id/6434863a382be783322e860e failing since 174 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1)

2 years, 6 months

1
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kselftest/next kselftest-lib: 8 runs, 4 regressions (v6.3-rc1-14-g5874a6a187f2)

by kernelci.org bot

kselftest/next kselftest-lib: 8 runs, 4 regressions (v6.3-rc1-14-g5874a6a187f2) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 meson-g12b-a311d-khadas-vim3 | arm64 | lab-collabora | gcc-10 | defconfig+kselftest | 1 meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/next/kernel/v6.3-rc1-14-g587… Test: kselftest-lib Tree: kselftest Branch: next Describe: v6.3-rc1-14-g5874a6a187f2 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 5874a6a187f2e814542d7fdf918fd29f79ff25c3 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/64347baff9764bbe142e85f1 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig+kselftest Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm/… HTML log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm/… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023040… * kselftest-lib.login: https://kernelci.org/test/case/id/64347baff9764bbe142e85f2 failing since 104 days (last pass: v6.1-rc1-24-gd5ba85d6d8be, first fail: v6.2-rc1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ meson-g12b-a311d-khadas-vim3 | arm64 | lab-collabora | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/643484e97a3f9d9ae22e860a Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… HTML log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023040… * kselftest-lib.login: https://kernelci.org/test/case/id/643484e97a3f9d9ae22e860b failing since 174 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ meson-gxl-s905x-libretech-cc | arm64 | lab-broonie | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/64348ae2cfcb1b8f342e85ea Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… HTML log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023040… * kselftest-lib.login: https://kernelci.org/test/case/id/64348ae2cfcb1b8f342e85eb failing since 172 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1-1-gde3ee3f63400a) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/6434819b365b6ccede2e85e9 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… HTML log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023040… * kselftest-lib.login: https://kernelci.org/test/case/id/6434819b365b6ccede2e85ea failing since 174 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1)

2 years, 6 months

1
0
0 0

kselftest/next kselftest-livepatch: 2 runs, 2 regressions (v6.3-rc1-14-g5874a6a187f2)

by kernelci.org bot

kselftest/next kselftest-livepatch: 2 runs, 2 regressions (v6.3-rc1-14-g5874a6a187f2) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/next/kernel/v6.3-rc1-14-g587… Test: kselftest-livepatch Tree: kselftest Branch: next Describe: v6.3-rc1-14-g5874a6a187f2 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: 5874a6a187f2e814542d7fdf918fd29f79ff25c3 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/64347be64c89b6021d2e85ed Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig+kselftest Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm/… HTML log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm/… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023040… * kselftest-livepatch.login: https://kernelci.org/test/case/id/64347be64c89b6021d2e85ee failing since 104 days (last pass: v6.1-rc1-24-gd5ba85d6d8be, first fail: v6.2-rc1) platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/64348231291f5811772e85ed Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… HTML log: https://storage.kernelci.org//kselftest/next/v6.3-rc1-14-g5874a6a187f2/arm6… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023040… * kselftest-livepatch.login: https://kernelci.org/test/case/id/64348231291f5811772e85ee failing since 174 days (last pass: linux-kselftest-next-6.0-rc2-11-g144eeb2fc761, first fail: v6.1-rc1)

2 years, 6 months

1
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