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From: Andreas Schwab <schwab@linux-m68k.org>
To: Michael Schmitz <schmitzmic@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Greg Ungerer <gerg@linux-m68k.org>,
	linux-m68k@lists.linux-m68k.org
Subject: Re: RFC: remove set_fs for m68k
Date: Mon, 12 Jul 2021 12:20:37 +0200	[thread overview]
Message-ID: <87fswjomtm.fsf@igel.home> (raw)
In-Reply-To: <039e2f42-b9bc-d8ce-393a-c0896439f784@gmail.com> (Michael Schmitz's message of "Sun, 11 Jul 2021 19:20:26 +1200")

On Jul 11 2021, Michael Schmitz wrote:

> Testing your series, I've got this in the console log:
>
> [16534.130000] *** FORMAT ERROR ***   FORMAT=0
> [16534.150000] Current process id is 1347
> [16534.160000] BAD KERNEL TRAP: 00000000
> [16534.180000] Modules linked in: atari_scsi ne 8390p
> [16534.210000] PC: [<00002a8c>] resume_userspace+0x14/0x16
> [16534.230000] SR: 2200  SP: d1b6e0e8  a2: 00000000
> [16534.240000] d0: 0000001e    d1: 00000003    d2: 00000578    d3: 00000000
> [16534.270000] d4: ffffffff    d5: 00000001    a0: 00000578    a1: 00000080
> [16534.300000] Process savelog (pid: 1347, task=e3955528)
> [16534.310000] Frame format=0
> [16534.330000] Stack from 005e9fa4:
> [16534.330000]         02108005 0d06b008 1eeeb649 007e0001 00aea040
> 003ec318 005e9e68 000279a2
> [16534.330000]         000b0000 00000000 00000000 030dfffb 0044fffa
> 0e000000 fffa1a00 fffa1c00
> [16534.330000]         fffa1e00 fffb0e40 fffb0e80 00049e02 00000040
> 0085a800 00000001
> [16534.430000] Call Trace: [<000279a2>] warn_slowpath_fmt+0x0/0x62
> [16534.460000]  [<000b0000>] vm_map_ram+0x144/0x5ae
> [16534.490000]  [<00049e02>] __handle_irq_event_percpu+0x38/0xce
> [16534.520000]
> [16534.540000] Code: 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38 <9f38> 9f38
> 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38 9f38

That looks like something overwrote the kernel code. 0x9f38 isn't an
insn that you would ever see in the kernel.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."

  parent reply	other threads:[~2021-07-12 10:20 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 [this message]
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
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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