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Reply-To: vsriram@mistralsolutions.com
Date: Thu, 29 Jan 2009 20:22:15 +0530
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Message-ID: <8bf247760901290652j44562471x173ceca987f4ca2a@mail.gmail.com>
Subject: reboot produces a crash.
From: "Sriram V." <vsriram@mistralsolutions.com>
To: linux-kernel@vger.kernel.org
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Hi,
   I am using 2.6.28 kernel. When i reboot. I get the following dump.

   Am trying to debug this - I want to know which module is causing the
   crash.

   How does anyone debug this?

Regards,
sriram


[<c007d97c>] (warn_slowpath+0x0/0x80) from [<c019dd58>] (kobject_put+0x3c/0x5c)
 r3:0000034f r2:c037041a
 r6:00000000 r5:c730c200 r4:c7802c20
[<c019dd1c>] (kobject_put+0x0/0x5c) from [<c01da150>]
(device_shutdown+0x88/0xa0)
 r4:c03f9fbc
[<c01da0c8>] (device_shutdown+0x0/0xa0) from [<c008ac14>]
(kernel_restart_prepare+0x2c/0x3c)
 r5:28121969 r4:00000000
[<c008abe8>] (kernel_restart_prepare+0x0/0x3c) from [<c008ac64>]
(kernel_restart+0x14/0x48)
[<c008ac50>] (kernel_restart+0x0/0x48) from [<c008c08c>] (sys_reboot+0xd4/0x1b0)
 r5:28121969 r4:01234567
[<c008bfb8>] (sys_reboot+0x0/0x1b0) from [<c0050e40>]
(ret_fast_syscall+0x0/0x2c)
 r7:00000058 r6:00000001 r5:00018380 r4:afe35e60
---[ end trace 3e890316ac4bb261 ]---
------------[ cut here ]------------
WARNING: at lib/kobject.c:592 kobject_put+0x3c/0x5c()
kobject: '<NULL>' (c7802c60): is not initialized, yet kobject_put() is
being called.
Modules linked in:
 r5:28121969 r4:00000000
[<c008abe8>] (kernel_restart_prepare+0x0/0x3c) from [<c008ac64>]
(kernel_restart+0x14/0x48)
[<c008ac50>] (kernel_restart+0x0/0x48) from [<c008c08c>] (sys_reboot+0xd4/0x1b0)
 r5:28121969 r4:01234567
[<c008bfb8>] (sys_reboot+0x0/0x1b0) from [<c0050e40>]
(ret_fast_syscall+0x0/0x2c)
 r7:00000058 r6:00000001 r5:00018380 r4:afe35e60
---[ end trace 3e890316ac4bb261 ]---
------------[ cut here ]------------
WARNING: at lib/kobject.c:592 kobject_put+0x3c/0x5c()
kobject: '<NULL>' (c7802ca0): is not initialized, yet kobject_put() is
being called.
Modules linked in:
[<c0054f0c>] (dump_stack+0x0/0x14) from [<c007d9e0>] (warn_slowpath+0x64/0x80)
[<c007d97c>] (warn_slowpath+0x0/0x80) from [<c019dd58>] (kobject_put+0x3c/0x5c)
 r3:0000032c r2:c037041a
 r6:00000000 r5:c730c200 r4:c7802ca0
[<c019dd1c>] (kobject_put+0x0/0x5c) from [<c01da160>]
(device_shutdown+0x98/0xa0)
 r4:c03f9fbc