The patch titled Subject: scripts/gdb: fix aarch64 userspace detection in get_current_task has been added to the -mm mm-hotfixes-unstable branch. Its filename is scripts-gdb-fix-aarch64-userspace-detection-in-get_current_task.patch

This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches...

This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------ From: Jan Kiszka jan.kiszka@siemens.com Subject: scripts/gdb: fix aarch64 userspace detection in get_current_task Date: Fri, 10 Jan 2025 11:36:33 +0100

At least recent gdb releases (seen with 14.2) return SP_EL0 as signed long which lets the right-shift always return 0.

Link: https://lkml.kernel.org/r/dcd2fabc-9131-4b48-8419-6444e2d67454@siemens.com Signed-off-by: Jan Kiszka jan.kiszka@siemens.com Cc: Barry Song baohua@kernel.org Cc: Kieran Bingham kbingham@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

scripts/gdb/linux/cpus.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/scripts/gdb/linux/cpus.py~scripts-gdb-fix-aarch64-userspace-detection-in-get_current_task +++ a/scripts/gdb/linux/cpus.py @@ -167,7 +167,7 @@ def get_current_task(cpu): var_ptr = gdb.parse_and_eval("&pcpu_hot.current_task") return per_cpu(var_ptr, cpu).dereference() elif utils.is_target_arch("aarch64"): - current_task_addr = gdb.parse_and_eval("$SP_EL0") + current_task_addr = gdb.parse_and_eval("(unsigned long)$SP_EL0") if (current_task_addr >> 63) != 0: current_task = current_task_addr.cast(task_ptr_type) return current_task.dereference() _

Patches currently in -mm which might be from jan.kiszka@siemens.com are

scripts-gdb-fix-aarch64-userspace-detection-in-get_current_task.patch