hi all,
On Mon, Jan 09, 2023 at 10:01:15PM +0800, Oliver Sang wrote:
>
> On Fri, Jan 06, 2023 at 11:13:15AM +0100, Vlastimil Babka wrote:
>
> > And if the rate at the parent (has it increased thanks to the
> > DEBUG_PAGEALLOC?) is sufficient to bisect to the truly first bad commit. Thanks!
>
> got it. Thanks for suggestion!
>
> since 0af8489b02 is based on v6.1-rc2, we will test (both rectorture and boot)
> with same config upon v6.1-rc2 to see if it's really clean there.
> if so we will use dmesg.invalid_opcode:#[##] to trigger new bisect.
>
> will keep you updated. Thanks
by more tests, we cannot make sure the v6.1-rc2 is clean, so we also checked
v6.1-rc1 and v6.0. from results, we have low confidence that we can make a
successful bisection based on them [1][2]. could you suggest?
a further information not sure if it's helpful, [1][2] are both i386 based.
we also tried to run boot tests on x86_64 upon commit 0af8489b02, whatever
with or without CONFIG_DEBUG_PAGEALLOC/CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT,
we never obseve similar issues (also run 999 times).
[1]
boot results:
=========================================================================================
compiler/kconfig/rootfs/sleep/tbox_group/testcase:
gcc-11/i386-randconfig-a012-20221226+CONFIG_DEBUG_PAGEALLOC+CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT/debian-11.1-i386-20220923.cgz/1/vm-snb/boot
v6.0 v6.1-rc1 v6.1-rc2 56d5a2b9ba85a390473e86b4fe4 0af8489b0216fa1dd83e264bef8
---------------- --------------------------- --------------------------- --------------------------- ---------------------------
fail:runs %reproduction fail:runs %reproduction fail:runs %reproduction fail:runs %reproduction fail:runs
| | | | | | | | |
:999 0% 2:999 0% 1:999 1% 11:999 21% 208:999 dmesg.invalid_opcode:#[##]
:999 0% :999 0% :999 0% 2:999 5% 51:999 dmesg.kernel_BUG_at_include/linux/mm.h
:999 0% 1:999 0% :999 0% 4:999 4% 40:999 dmesg.kernel_BUG_at_include/linux/page-flags.h
:999 0% 1:999 0% 1:999 0% 4:999 11% 111:999 dmesg.kernel_BUG_at_lib/list_debug.c
:999 0% :999 0% :999 0% :999 0% 2:999 dmesg.kernel_BUG_at_mm/page_alloc.c
:999 0% :999 0% :999 0% 1:999 0% 3:999 dmesg.kernel_BUG_at_mm/usercopy.c
[2]
rcutorture results:
=========================================================================================
compiler/kconfig/rootfs/runtime/tbox_group/test/testcase/torture_type:
gcc-11/i386-randconfig-a012-20221226+CONFIG_DEBUG_PAGEALLOC+CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT/debian-11.1-i386-20220923.cgz/300s/vm-snb/default/rcutorture/tasks-tracing
v6.0 v6.1-rc1 v6.1-rc2 56d5a2b9ba85a390473e86b4fe4 0af8489b0216fa1dd83e264bef8
---------------- --------------------------- --------------------------- --------------------------- ---------------------------
fail:runs %reproduction fail:runs %reproduction fail:runs %reproduction fail:runs %reproduction fail:runs
| | | | | | | | |
:999 0% 3:999 0% :999 1% 8:998 20% 200:999 dmesg.invalid_opcode:#[##]
:999 0% :999 0% :999 0% :998 5% 51:999 dmesg.kernel_BUG_at_include/linux/mm.h
:999 0% :999 0% :999 0% 3:998 4% 42:999 dmesg.kernel_BUG_at_include/linux/page-flags.h
:999 0% 3:999 0% :999 0% 4:998 10% 102:999 dmesg.kernel_BUG_at_lib/list_debug.c
:999 0% :999 0% :999 0% :998 0% 2:999 dmesg.kernel_BUG_at_mm/page_alloc.c
:999 0% :999 0% :999 0% 1:998 0% 3:999 dmesg.kernel_BUG_at_mm/usercopy.c
>
> >
> >
