From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: "Shi, Alex" <alex.shi@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
"bugme-daemon@bugzilla.kernel.org"
<bugme-daemon@bugzilla.kernel.org>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"yanming.zhang@intel.com" <yanming.zhang@intel.com>,
"Chen, Tim C" <tim.c.chen@intel.com>
Subject: RE: [Bugme-new] [Bug 11898] New: mke2fs hang on AIC79 device.
Date: Thu, 30 Oct 2008 09:05:26 -0500 [thread overview]
Message-ID: <1225375526.3250.15.camel@localhost.localdomain> (raw)
In-Reply-To: <F7C8A4D3A9905B45A80E4C194793FA6501C05D627D@PDSMSX501.ccr.corp.intel.com>
On Thu, 2008-10-30 at 18:22 +0800, Shi, Alex wrote:
> New panic output is attached after adding softlockup. New found:
> 1, "strace mke2fs /dev/sdb1" works well. it just show many write(3, "\377\377...", 4096) =4096 ....
> 2, when system hang, ping this machine is workable. And keyboard input works but cmd has no output.
This doesn't entirely implicate the aic79xx. The trace shows:
<IRQ> [<ffffffff803f99eb>] ? scsi_request_fn+0x31a/0x416
[<ffffffff803435ad>] ? blk_invoke_request_fn+0x79/0x11d
[<ffffffff80343b21>] ? __blk_run_queue+0x2a/0x2e
[<ffffffff803f7def>] ? scsi_run_queue+0x2cd/0x2e4
[<ffffffff803f8452>] ? scsi_next_command+0x3b/0x4c
[<ffffffff803f86ef>] ? scsi_end_request+0x97/0xa9
[<ffffffff803f93b0>] ? scsi_io_completion+0x190/0x3a8
[<ffffffff803f3a9f>] ? scsi_finish_command+0xb6/0xbf
[<ffffffff803f96c9>] ? scsi_softirq_done+0x101/0x109
[<ffffffff803476df>] ? blk_done_softirq+0x68/0x79
[<ffffffff8023de8c>] ? __do_softirq+0x86/0x14f
[<ffffffff8020c63c>] ? call_softirq+0x1c/0x28
[<ffffffff8020dd82>] ? do_softirq+0x39/0x77
[<ffffffff8023de04>] ? irq_exit+0x44/0x46
[<ffffffff8020de88>] ? do_IRQ+0xc8/0xe8
[<ffffffff8020b8f6>] ? ret_from_intr+0x0/0xa
<EOI> [<ffffffff8021299b>] ? mwait_idle+0x4a/0x4f
[<ffffffff80209c82>] ? enter_idle+0x27/0x29
[<ffffffff8020a198>] ? cpu_idle+0x45/0x63
[<ffffffff804e4d50>] ? start_secondary+0x179/0x17d
So we locked up somehow in the mid-layer trying to feed a new command
from the softirq. It would greatly help to know what line in scsi_lib.c
scsi_request_fn+0x31a/0x416
The trace implies SCSI is built in, so
addr2line -e vmlinux -f scsi_request_fn+0x31a
Should tell us (hoping you build with CONFIG_DEBUG_INFO).
James
next prev parent reply other threads:[~2008-10-30 14:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-11898-10286@http.bugzilla.kernel.org/>
2008-10-30 8:53 ` [Bugme-new] [Bug 11898] New: mke2fs hang on AIC79 device Andrew Morton
2008-10-30 10:22 ` Shi, Alex
2008-10-30 14:05 ` James Bottomley [this message]
2008-10-31 3:12 ` Shi, Alex
2008-11-05 1:31 ` Shi, Alex
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