From: Zwane Mwaikambo <zwane@linuxpower.ca>
To: Andrew Morton <akpm@digeo.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Oops: 2.5.64 check_obj_poison for 'size-64'
Date: Fri, 7 Mar 2003 02:22:46 -0500 (EST) [thread overview]
Message-ID: <Pine.LNX.4.50.0303070221470.18716-100000@montezuma.mastecende.com> (raw)
In-Reply-To: <20030306222328.14b5929c.akpm@digeo.com>
On Thu, 6 Mar 2003, Andrew Morton wrote:
> Zwane Mwaikambo <zwane@linuxpower.ca> wrote:
> >
> > This just popped up on my screen, seems to have been triggered by sar/cron
> > (i'll probably have to reboot the box soon)
> >
> > slab error in check_poison_obj(): cache `size-64': object was modified after freeing
> > Call Trace:
> > [<c0142226>] check_poison_obj+0x66/0x70
> > [<c0143b92>] kmalloc+0xd2/0x180
> > [<c0166078>] pipe_new+0x28/0xd0
> > [<c0166153>] get_pipe_inode+0x23/0xb0
> > [<c0166212>] do_pipe+0x32/0x1e0
> > [<c0111ed3>] sys_pipe+0x13/0x60
> > [<c010ad9b>] syscall_call+0x7/0xb
>
> Don't know. If you're using anticipatory scheduler in 2.5.63-mmfoo this
> will happen. 64-mm1 is OK.
Nope simply 2.5.64-unwashed. I don't know how to twiddle the advanced
knobs
> show_interrupts() is walking the per-irq action chain without locking it.
> Any concurrent add/remove activity will explode.
>
> Do you want to hunt down all the show_interrupts() instances and pop a
> spin_lock_irq(desc->lock) around them?
Sure thing.
Thanks,
Zwane
--
function.linuxpower.ca
next prev parent reply other threads:[~2003-03-07 7:14 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-07 5:13 Oops: 2.5.64 check_obj_poison for 'size-64' Zwane Mwaikambo
2003-03-07 6:23 ` Andrew Morton
2003-03-07 7:22 ` Zwane Mwaikambo [this message]
2003-03-07 7:35 ` Andrew Morton
2003-03-07 7:40 ` Zwane Mwaikambo
2003-03-07 7:45 ` Miles Bader
2003-03-07 7:58 ` Andrew Morton
2003-03-07 8:10 ` Miles Bader
2003-03-07 10:05 ` [PATCH] protect 'action' in show_interrupts Zwane Mwaikambo
2003-03-07 10:28 ` Andrew Morton
2003-03-07 15:32 ` Zwane Mwaikambo
2003-03-07 15:46 ` Russell King
2003-03-07 16:25 ` Zwane Mwaikambo
2003-03-07 22:01 ` Andrew Morton
[not found] ` <Pine.LNX.4.50.0303070351060.18716-100000@montezuma.mastecende.com>
[not found] ` <20030307010539.3c0a14a3.akpm@digeo.com>
2003-03-07 9:53 ` Oops: 2.5.64 check_obj_poison for 'size-64' Zwane Mwaikambo
2003-03-07 19:38 ` Manfred Spraul
2003-03-07 21:57 ` Zwane Mwaikambo
2003-03-08 2:11 ` Zwane Mwaikambo
2003-03-08 2:24 ` Andrew Morton
2003-03-08 2:42 ` Zwane Mwaikambo
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