From: Finn Thain <fthain@linux-m68k.org>
To: Michael Schmitz <schmitzmic@gmail.com>
Cc: linux-m68k@vger.kernel.org
Subject: Re: Mainline kernel crashes, was Re: RFC: remove set_fs for m68k
Date: Fri, 10 Sep 2021 08:51:15 +1000 (AEST) [thread overview]
Message-ID: <7ac7a41a-53f9-b13c-83fa-2c6b8ef2b90@linux-m68k.org> (raw)
In-Reply-To: <42b30d4f-b871-51ea-1b0e-479f4fe096eb@gmail.com>
On Wed, 8 Sep 2021, Michael Schmitz wrote:
>
> In a related case, I've managed to swap my 'resume_userspace' format
> error for a nice 'illegal instruction' format error apparently caused by
> an invalid function pointer in __handle_irq_event_percpu(), just by
> disabling all interrupts upon entering the auto_inthandler and
> user_inthandler exception handlers. This bug is quite readily reproduced
> by running your kernel_coverage.sh script in a loop (panics on the first
> stress test on the second pass):
>
> Stress run 2
> Logging to stress-ng-20210908-0838.log
> ./kernel-coverage.sh: line 272: lcov: command not found
> running --fork 1 --fork-vm -t 60 --timestamp --no-rand-seed --times
> stress-ng: 08:40:08.70 info: [1914] setting to a 60 second run per stressor
> stress-ng: 08:40:08.82 info: [1914] dispatching hogs: 1 fork
> packet_write_wait: Connection to 10.1.1.4 port 22: Broken pipe
>
> Why disabling interrupts during interrupt processing would make matters
> worse doesn't make any sense to me...
>
Are you able to reproduce that with a stock mainline build?
next prev parent reply other threads:[~2021-09-09 22:51 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-09 7:01 RFC: remove set_fs for m68k Christoph Hellwig
2021-07-09 7:01 ` [PATCH 1/7] m68k: document that access_ok is broken for !CONFIG_CPU_HAS_ADDRESS_SPACES Christoph Hellwig
2021-07-09 7:01 ` [PATCH 2/7] m68k: use BUILD_BUG for passing invalid sizes to get_user/put_user Christoph Hellwig
2021-07-09 7:01 ` [PATCH 3/7] m68k: remove the inline copy_{from,to}_user variants Christoph Hellwig
2021-07-09 7:01 ` [PATCH 4/7] m68k: remove the err argument to the get_user/put_user assembly helpers Christoph Hellwig
2021-07-09 7:01 ` [PATCH 5/7] m68k: factor the 8-byte lowlevel {get,put}_user code into helpers Christoph Hellwig
2021-07-09 7:01 ` [PATCH 6/7] m68k: provide __{get,put}_kernel_nofault Christoph Hellwig
2021-07-09 7:01 ` [PATCH 7/7] m68k: remove set_fs() Christoph Hellwig
2021-07-11 7:20 ` RFC: remove set_fs for m68k Michael Schmitz
2021-07-12 9:50 ` Christoph Hellwig
2021-07-12 10:20 ` Andreas Schwab
2021-07-12 19:12 ` Michael Schmitz
2021-07-13 5:41 ` Christoph Hellwig
2021-07-13 8:16 ` Michael Schmitz
2021-07-13 8:54 ` Christoph Hellwig
2021-07-14 19:26 ` Michael Schmitz
2021-07-14 20:03 ` Andreas Schwab
2021-07-15 5:44 ` Michael Schmitz
2021-07-16 2:03 ` Michael Schmitz
2021-07-17 5:41 ` Michael Schmitz
2021-07-18 1:14 ` Michael Schmitz
2021-07-21 17:05 ` Christoph Hellwig
2021-07-21 19:20 ` Michael Schmitz
2021-07-23 4:00 ` Michael Schmitz
2021-07-23 5:11 ` Christoph Hellwig
2021-07-25 7:36 ` Michael Schmitz
2021-07-31 19:31 ` Michael Schmitz
2021-08-06 3:10 ` Michael Schmitz
2021-08-11 9:12 ` Christoph Hellwig
2021-08-12 3:37 ` Michael Schmitz
2021-08-15 7:42 ` Christoph Hellwig
2021-08-15 19:17 ` Michael Schmitz
2021-08-16 6:58 ` Christoph Hellwig
[not found] ` <23f745f2-9086-81fb-3d9e-40ea08a1923@linux-m68k.org>
[not found] ` <20210816075155.GA29187@lst.de>
[not found] ` <d407a2a1-738b-5cd5-c2ed-b7250c5da8ec@gmail.com>
[not found] ` <83571ae-10ae-2919-cde-b6b4a5769c9@linux-m68k.org>
[not found] ` <dc594142-e459-533e-cac2-c7a213cec464@gmail.com>
[not found] ` <f4ab2dcb-6761-c60b-54ce-35d0d017d371@gmail.com>
[not found] ` <d772d22e-a945-3e35-80a2-f4783893bea@linux-m68k.org>
[not found] ` <b2c55280-657b-51c2-065c-3fc93db050b9@gmail.com>
[not found] ` <d7b8f7eb-fc18-c8d-fe3e-dcdf19d3f4b@linux-m68k.org>
[not found] ` <755e55ba-4ce2-b4e4-a628-5abc183a557a@linux-m68k.org>
[not found] ` <b52a10fe-3e4b-5740-d3f8-52bce3bc988@linux-m68k.org>
[not found] ` <31f27da7-be60-8eb-9834-748b653c2246@linux-m68k.org>
2021-09-07 3:28 ` Mainline kernel crashes, was " Finn Thain
2021-09-07 5:53 ` Michael Schmitz
2021-09-07 23:50 ` Finn Thain
2021-09-08 8:54 ` Michael Schmitz
2021-09-09 9:40 ` Finn Thain
2021-09-09 23:29 ` Michael Schmitz
2021-09-09 22:51 ` Finn Thain [this message]
2021-09-10 0:03 ` Michael Schmitz
2021-09-12 0:51 ` Finn Thain
2021-09-12 3:55 ` Brad Boyer
2021-09-13 1:27 ` Finn Thain
2021-09-13 3:26 ` Michael Schmitz
2021-09-13 5:22 ` Finn Thain
2021-09-13 7:20 ` Michael Schmitz
2021-09-14 3:13 ` Michael Schmitz
2021-09-15 1:38 ` Finn Thain
2021-09-15 8:37 ` Michael Schmitz
2021-09-16 9:04 ` Finn Thain
2021-09-16 22:28 ` Michael Schmitz
2021-09-21 21:14 ` Michael Schcmitz
2021-08-22 19:33 ` Michael Schmitz
2021-08-23 4:04 ` Michael Schmitz
2021-08-23 17:59 ` Linus Torvalds
2021-08-23 21:31 ` Michael Schmitz
2021-08-23 21:49 ` Linus Torvalds
2021-08-24 8:08 ` Andreas Schwab
2021-08-24 8:44 ` Michael Schmitz
2021-08-24 8:59 ` Andreas Schwab
2021-08-25 7:51 ` Michael Schmitz
2021-08-25 8:44 ` Andreas Schwab
2021-08-25 22:59 ` Michael Schmitz
2021-08-25 23:30 ` Brad Boyer
2021-08-26 7:46 ` Michael Schmitz
2021-08-26 7:45 ` Andreas Schwab
2021-09-14 2:43 ` Michael Schmitz
2021-09-14 15:54 ` Linus Torvalds
2021-09-14 16:28 ` Al Viro
2021-09-14 16:38 ` Linus Torvalds
2021-09-15 1:06 ` Al Viro
2021-07-12 19:04 ` Michael Schmitz
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