On Sun, 7 Jun 2020 at 16:50, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:
On Sat, Jun 06, 2020 at 09:19:53PM +0530, Naresh Kamboju wrote:
On Fri, 5 Jun 2020 at 19:46, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:
This is the start of the stable review cycle for the 5.7.1 release. There are 14 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Sun, 07 Jun 2020 13:54:56 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.7.1-rc1.g... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.7.y and the diffstat can be found below.
thanks,
greg k-h
Results from Linaro’s test farm.
While running kselftest memfd_test case the kernel panic noticed on i386 which started with kernel BUG and followed by kernel panic.
steps to reproduce: (Not always reproducible) - cd /opt/kselftests/mainline/memfd/ - ./run_fuse_test.sh || true - ./run_hugetlbfs_test.sh || true
[ 417.473220] run_hugetlbfs_t (10826): drop_caches: 3 [ 417.491120] audit: type=1701 audit(1591388532.357:87503): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=10829 comm="memfd_test" exe="/opt/kselftests/mainline/memfd/memfd_test" sig=6 res=1 [ 417.511294] BUG: kernel NULL pointer dereference, address: 00000043 [ 417.517569] #PF: supervisor read access in kernel mode [ 417.522699] #PF: error_code(0x0000) - not-present page [ 417.527830] *pde = 00000000 [ 417.530707] Oops: 0000 [#2] SMP [ 417.533846] CPU: 3 PID: 10829 Comm: memfd_test Tainted: G D W 5.7.1-rc1 #1 [ 417.541845] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 417.549327] EIP: kmem_cache_alloc_trace+0x81/0x2b0 <> [ 931.776242] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009 [ 931.783933] Kernel Offset: 0x1ce00000 from 0xc1000000 (relocation range: 0xc0000000-0xf77fdfff) [ 931.792627] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009 ]---
Did you see this on Linus's tree too?
Yes. I have noticed 4 out of 10 kselftest full runs.
Is it a regression from 5.7.0?
It is a regression on Linus 's tree and the same problem was noticed on stable-rc 5.7 branch.
- Naresh