From: "Toralf Förster" <toralf.foerster@gmx.de>
To: Richard Weinberger <richard@nod.at>
Cc: UML devel <user-mode-linux-devel@lists.sourceforge.net>,
trinity@vger.kernel.org
Subject: Re: [uml-devel] trinity commit 23dc478aba breaks syscall "mremap" at a 32 bit user mode linux
Date: Thu, 01 May 2014 23:34:09 +0200 [thread overview]
Message-ID: <5362BDD1.9070105@gmx.de> (raw)
In-Reply-To: <5362B53E.5060601@nod.at>
On 05/01/2014 10:57 PM, Richard Weinberger wrote:
> Toralf,
>
> Yeah, this is because trinity destroys the UML stub code.
> Please test the attached patch, it should fix the root cause of the problem.
>
> Thanks,
> //richard
>
If I do just apply fix2.patch onto latest git tree v3.15-rc3-113-gba6728f then I do get after a while :
* Starting sshd ... [ ok ]
* Starting local
net.core.warnings = 0 [ ok ]
Kernel panic - not syncing: do_syscall_stub : PTRACE_SETREGS failed, errno = 3
CPU: 0 PID: 1728 Comm: trinity-c0 Not tainted 3.15.0-rc3-00113-gba6728f-dirty #5
Stack:
BUG: soft lockup - CPU#0 stuck for 22s! [trinity-c0:1728]
EIP: c500:[<47c6cf00>] CPU: 0 Not tainted EFLAGS: 476af700
Not tainted
EAX: 47cfc500 EBX: 0a024d00 ECX: 086c75fc EDX: 080fff88
ESI: 0839f4bc EDI: 47cfc500 EBP: 0839f4bc DS: c500 ES: cd62
EXT4-fs (ubda): error count: 1
EXT4-fs (ubda): initial error at 1398962134: ext4_mb_generate_buddy:756
EXT4-fs (ubda): last error at 1398962134: ext4_mb_generate_buddy:756
which is a big improvement because before it crashes immediately after few seconds.
After applying both fixes the test case runs w/o a crash till now.
--
Toralf
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next prev parent reply other threads:[~2014-05-01 21:34 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-30 18:19 [uml-devel] trinity commit 23dc478aba breaks syscall "mremap" at a 32 bit user mode linux Toralf Förster
2014-05-01 9:22 ` Richard Weinberger
2014-05-01 10:29 ` Toralf Förster
2014-05-01 12:33 ` Richard Weinberger
2014-05-01 15:15 ` Toralf Förster
2014-05-01 20:57 ` Richard Weinberger
2014-05-01 21:34 ` Toralf Förster [this message]
2014-05-02 7:21 ` Richard Weinberger
2014-05-02 7:46 ` Richard Weinberger
2014-05-02 14:07 ` Toralf Förster
2014-05-02 14:14 ` Richard Weinberger
2014-07-12 17:16 ` Toralf Förster
2014-07-12 18:04 ` Richard Weinberger
2014-05-02 6:43 ` stian
2014-05-02 9:48 ` Richard Weinberger
2014-07-26 20:01 ` Toralf Förster
2014-07-26 20:07 ` Richard Weinberger
2014-07-26 21:21 ` Toralf Förster
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