On Sat, 2007-05-05 at 20:04 +0200, Michal Piotrowski wrote:
> Hi,
>
> Michal Piotrowski napisał(a):
> > On 04/05/07, Andrew Morton <[email protected]> wrote:
> >> On Fri, 04 May 2007 18:20:51 +0200 Michal Piotrowski
> >> <[email protected]> wrote:
> >>
> >> > I ran this script tree times,
> >> >
> >> > #! /bin/sh
> >> >
> >> > for i in `find /sys/ -type f`
> >> > do
> >> > echo "wyświetlam $i"
> >> > sudo cat $i > /dev/null
> >> > done
> >> >
> >> > First run - scheduler bug
> >> > Second run - NOHZ bug
> >> > Third - VFS bug
> >> >
> >> > Hmmmm...
> >> >
> >> > [93298.252601] BUG: at /mnt/md0/devel/linux-git/kernel/sched.c:3241
> >> add_preempt_count()
> >> > [93298.260334] [<c0105039>] show_trace_log_lvl+0x1a/0x2f
> >> > [93298.265507] [<c0105720>] show_trace+0x12/0x14
> >> > [93298.269974] [<c01057d2>] dump_stack+0x16/0x18
> >> > [93298.274434] [<c011d18a>] add_preempt_count+0x89/0x8b
> >> > [93298.279501] [<c0126492>] irq_enter+0xd/0x2e
> >> > [93298.283788] [<c0114c1e>] smp_apic_timer_interrupt+0x2a/0x84
> >> > [93298.289458] [<c0104b2b>] apic_timer_interrupt+0x33/0x38
> >> > [93298.294783] [<c0257b79>] show_uevent+0x58/0xcd
> >> > [93298.299329] =======================
> >> > [93390.468056] NOHZ: local_softirq_pending 22
> >> > [93447.105850] NOHZ: local_softirq_pending 22
> >> > [93450.332884] BUG: unable to handle kernel paging request at
> >> virtual address 3e343c0c
> >> > [93450.340626] printing eip:
> >> > [93450.343333] c018e2bc
> >> > [93450.345520] *pde = 00000000
> >> > [93450.348314] Oops: 0000 [#1]
> >>
> >> Nice. What was the last file which it read before crashing?
> >>
> >> Are you able to consistently crash it by reading just that file?
> >
> > Random files, random bugs (usually it starts with a slab corruption).
> >
> > git-bisect will give an answer.
>
> So this is a random bug generator...
>
> git-bisect bad
> 16574dccd8f62dc1b585325f8a6a0aab10047ed8 is first bad commit
> commit 16574dccd8f62dc1b585325f8a6a0aab10047ed8
> Author: Kay Sievers <[email protected]>
> Date: Fri Apr 6 01:40:38 2007 +0200
>
> Driver core: make uevent-environment available in uevent-file
>
> This allows sysfs to show the environment variables that are available
> if the uevent happens. This lets userspace not have to cache all of
> this information as the kernel already knows it.
>
> Signed-off-by: Kay Sievers <[email protected]>
> Signed-off-by: Greg Kroah-Hartman <[email protected]>
>
> :040000 040000 34152258985968083c04ab003ced54d73e92a790 c3301e8cd7705c293817c6747b3cc59d6cbf14bb M drivers
>
> http://www.stardust.webpages.pl/files/tbf/bitis-gabonica/2.6.21-git4/git-config
Greg fixed this:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=c7308c81a8220ab68eebfadde37db881a2800064
Kay
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
