From: Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
To: Jean Delvare <khali-PUYAD+kWke1g9hUCZPvPmw@public.gmane.org>
Cc: Ulrich Drepper <drepper-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
john stultz <johnstul-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>,
Greg KH <gregkh-l3A5Bk7waGM@public.gmane.org>,
LKML <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Linux I2C <i2c-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org>
Subject: Re: [crash, bisected] I2C, kobject (ffff81003e8c4160): tried to init an initialized object
Date: Thu, 17 Jul 2008 11:49:30 +0200 [thread overview]
Message-ID: <20080717094930.GA9044@elte.hu> (raw)
In-Reply-To: <20080717092655.GA6115-X9Un+BFzKDI@public.gmane.org>
* Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org> wrote:
> -tip testing found another (similar) i2c crash with latest -git, on a
> Core2Duo laptop:
found another bootup crash on an Athlon 64 X2 testsystem:
[ 19.610000] bus: 'pci': add driver amd756_smbus
[ 19.615204] initcall amd756_init+0x0/0x20 returned 0 after 9 msecs
[ 19.620000] calling amd756_s4882_init+0x0/0x2d7
[ 19.624242] ------------[ cut here ]------------
[ 19.628415] WARNING: at kernel/mutex.c:134 mutex_lock_nested+0xc0/0x267()
[ 19.630000] Pid: 1, comm: swapper Not tainted 2.6.26-tip #20066
[ 19.630000]
[ 19.630000] Call Trace:
[ 19.630000] [<ffffffff802358f5>] warn_on_slowpath+0x58/0x7f
[ 19.630000] [<ffffffff80263ac6>] ? ftrace_record_ip+0x20c/0x263
[ 19.630000] [<ffffffff80514faa>] ? _raw_spin_unlock+0x8e/0x93
[ 19.630000] [<ffffffff80507c44>] ? debug_locks_off+0x4/0x3c
[ 19.630000] [<ffffffff80263ac6>] ? ftrace_record_ip+0x20c/0x263
[ 19.630000] [<ffffffff8020b3a4>] ? mcount_call+0x5/0x31
[ 19.630000] [<ffffffff80861c19>] mutex_lock_nested+0xc0/0x267
[ 19.630000] [<ffffffff806e8ffd>] ? i2c_smbus_xfer+0x59/0x49c
[ 19.630000] [<ffffffff80cc8575>] ? amd756_s4882_init+0x0/0x2d7
[ 19.630000] [<ffffffff8020b3a4>] ? mcount_call+0x5/0x31
[ 19.630000] [<ffffffff806e8ffd>] i2c_smbus_xfer+0x59/0x49c
[ 19.630000] [<ffffffff80263ac6>] ? ftrace_record_ip+0x20c/0x263
[ 19.630000] [<ffffffff80514faa>] ? _raw_spin_unlock+0x8e/0x93
[ 19.630000] [<ffffffff80cc8584>] ? amd756_s4882_init+0xf/0x2d7
[ 19.630000] [<ffffffff80263ac6>] ? ftrace_record_ip+0x20c/0x263
[ 19.630000] [<ffffffff80cc8575>] ? amd756_s4882_init+0x0/0x2d7
[ 19.630000] [<ffffffff8020b3a4>] ? mcount_call+0x5/0x31
[ 19.630000] [<ffffffff80cc8575>] ? amd756_s4882_init+0x0/0x2d7
[ 19.630000] [<ffffffff80cc85b6>] amd756_s4882_init+0x41/0x2d7
[ 19.630000] [<ffffffff8024e325>] ? getnstimeofday+0x3f/0xa1
[ 19.630000] [<ffffffff8024bf25>] ? ktime_get_ts+0x4e/0x53
[ 19.630000] [<ffffffff80cc8575>] ? amd756_s4882_init+0x0/0x2d7
[ 19.630000] [<ffffffff80ca49a0>] kernel_init+0x143/0x2a4
[ 19.630000] [<ffffffff80863721>] ? _spin_unlock_irq+0x2b/0x37
[ 19.630000] [<ffffffff8020c9f9>] child_rip+0xa/0x11
[ 19.630000] [<ffffffff80ca485d>] ? kernel_init+0x0/0x2a4
[ 19.630000] [<ffffffff8020c9ef>] ? child_rip+0x0/0x11
[ 19.630000]
[ 19.630000] ---[ end trace 0e79313125261797 ]---
[ 19.630000] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
[ 19.630000] IP: [<ffffffff80861c66>] mutex_lock_nested+0x10d/0x267
with this config:
http://redhat.com/~mingo/misc/config-Thu_Jul_17_11_34_08_CEST_2008.bad
i already had I2C_NFORCE2_S4985 off here, so it's a different one.
Ingo
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next prev parent reply other threads:[~2008-07-17 9:49 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-14 20:49 [GIT PULL] i2c updates for 2.6.27, round 1 Jean Delvare
2008-07-16 8:23 ` [crash, bisected] I2C, kobject (ffff81003e8c4160): tried to init an initialized object (was: Re: [GIT PULL] i2c updates for 2.6.27, round 1) Ingo Molnar
2008-07-16 9:07 ` Jean Delvare
2008-07-16 10:08 ` [crash, bisected] I2C, kobject (ffff81003e8c4160): tried to init an initialized object Jean Delvare
2008-07-16 12:18 ` Jean Delvare
2008-07-17 9:26 ` Ingo Molnar
2008-07-17 9:33 ` Ingo Molnar
2008-07-17 9:48 ` Alexey Dobriyan
[not found] ` <20080717094858.GA18687-QDJVlCTZ4KWTKS93B3g+7KFoa47nwP16@public.gmane.org>
2008-07-17 9:59 ` Ingo Molnar
2008-08-06 20:21 ` Jean Delvare
[not found] ` <20080717092655.GA6115-X9Un+BFzKDI@public.gmane.org>
2008-07-17 9:49 ` Ingo Molnar [this message]
2008-07-17 9:54 ` Ingo Molnar
2008-07-17 22:42 ` [crash, bisected] I2C, kobject (ffff81003e8c4160): tried to init an initialized object (was: Re: [GIT PULL] i2c updates for 2.6.27, round 1) Greg KH
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