linux-kernel - Re: sparc64 WARNING: at mm/mmap.c:2757 exit

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Message-ID: <20140830222701.GA30338@drone.musicnaut.iki.fi>
Date:	Sun, 31 Aug 2014 01:27:01 +0300
From:	Aaro Koskinen <aaro.koskinen@....fi>
To:	David Miller <davem@...emloft.net>
Cc:	mroos@...ux.ee, sparclinux@...r.kernel.org,
	linux-kernel@...r.kernel.org, hughd@...gle.com,
	cat.schulze@...ce-dsl.net
Subject: Re: sparc64 WARNING: at mm/mmap.c:2757 exit_mmap+0x13c/0x160()

Hi,

On Mon, Aug 18, 2014 at 10:38:50AM -0700, David Miller wrote:
> All patches are in 3,17-rc1

FYI, the warning/bug still triggers with 3.17-rc2 during GCC bootstrap:

[94075.963753] ------------[ cut here ]------------
[94076.018105] WARNING: CPU: 0 PID: 17192 at /home/aaro/los/work/shared/linux-v3.17-rc2/mm/mmap.c:2766 exit_mmap+0x128/0x160()
[94076.151407] Modules linked in:
[94076.187825] CPU: 0 PID: 17192 Comm: rm Not tainted 3.17.0-rc2-ultra-los_3ec1 #1
[94076.275319] Call Trace:
[94076.304490]  [00000000004c1308] exit_mmap+0x128/0x160
[94076.364915]  [000000000045118c] mmput+0x2c/0xc0
[94076.419062]  [0000000000453cb0] do_exit+0x1b0/0x880
[94076.477387]  [0000000000454ff8] do_group_exit+0x38/0xc0
[94076.539880]  [0000000000455094] SyS_exit_group+0x14/0x20
[94076.603429]  [0000000000406074] linux_sparc_syscall32+0x34/0x60
[94076.674225] ---[ end trace b4b3ce0b3bcc0234 ]---
[94076.729446] BUG: Bad rss-counter state mm:ffffff0016898000 idx:1 val:2

A.
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