Re: [patch V3 10/37] ARM: highmem: Switch to generic kmap atomic
On 2020-11-12 09:10:34 [+0100], Marek Szyprowski wrote: > I can do more tests to help fixing this issue. Just let me know what to do. -> https://lkml.kernel.org/r/87y2j6n8mj@nanos.tec.linutronix.de Sebastian
Re: [patch V3 10/37] ARM: highmem: Switch to generic kmap atomic
Marek, On Thu, Nov 12 2020 at 09:10, Marek Szyprowski wrote: > On 03.11.2020 10:27, Thomas Gleixner wrote: > > I can do more tests to help fixing this issue. Just let me know what to do. Just sent out the fix before I saw your report. https://lore.kernel.org/r/87y2j6n8mj@nanos.tec.linutronix.de Thanks, tglx
Re: [patch V3 10/37] ARM: highmem: Switch to generic kmap atomic
Hi Thomas,
On 03.11.2020 10:27, Thomas Gleixner wrote:
> No reason having the same code in every architecture.
>
> Signed-off-by: Thomas Gleixner
> Cc: Russell King
> Cc: Arnd Bergmann
> Cc: linux-arm-ker...@lists.infradead.org
This patch landed in linux-next 20201109 as commit 2a15ba82fa6c ("ARM:
highmem: Switch to generic kmap atomic"). However it causes a following
warning on my test boards (Samsung Exynos SoC based):
Run /sbin/init as init process
INIT: version 2.88 booting
[ cut here ]
WARNING: CPU: 3 PID: 120 at mm/highmem.c:502
kunmap_local_indexed+0x194/0x1d0
Modules linked in:
CPU: 3 PID: 120 Comm: init Not tainted 5.10.0-rc2-00010-g2a15ba82fa6c #1924
Hardware name: Samsung Exynos (Flattened Device Tree)
[] (unwind_backtrace) from [] (show_stack+0x10/0x14)
[] (show_stack) from [] (dump_stack+0xb4/0xd4)
[] (dump_stack) from [] (__warn+0x98/0x104)
[] (__warn) from [] (warn_slowpath_fmt+0xb0/0xb8)
[] (warn_slowpath_fmt) from []
(kunmap_local_indexed+0x194/0x1d0)
[] (kunmap_local_indexed) from []
(remove_arg_zero+0xa0/0x158)
[] (remove_arg_zero) from [] (load_script+0x250/0x318)
[] (load_script) from [] (bprm_execve+0x3d0/0x930)
[] (bprm_execve) from []
(do_execveat_common+0x174/0x184)
[] (do_execveat_common) from [] (sys_execve+0x30/0x38)
[] (sys_execve) from [] (ret_fast_syscall+0x0/0x28)
Exception stack(0xc4561fa8 to 0xc4561ff0)
1fa0: b6f2bab8 bef7dac4 bef7dac4 bef7d8fc 004b9b58
bef7dac8
1fc0: b6f2bab8 bef7dac4 bef7d8fc 000b 004b8000 004bac44 bef7da3c
bef7d8dc
1fe0: 002f bef7d89c b6d6dc74 b6d6d65c
irq event stamp: 1283
hardirqs last enabled at (1293): [] console_unlock+0x430/0x6b0
hardirqs last disabled at (1302): [] console_unlock+0x428/0x6b0
softirqs last enabled at (1282): [] __do_softirq+0x528/0x674
softirqs last disabled at (1269): [] irq_exit+0x1dc/0x1e8
---[ end trace 6f32a2fb4294655f ]---
I can do more tests to help fixing this issue. Just let me know what to do.
...
Best regards
--
Marek Szyprowski, PhD
Samsung R Institute Poland
