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SubjectRe: 2.6.17-rc5-mm1
On Tue, 30 May 2006 20:55:52 +0200
"Michal Piotrowski" <michal.k.k.piotrowski@gmail.com> wrote:

> On 30/05/06, Andrew Morton <akpm@osdl.org> wrote:
> >
> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17-rc5/2.6.17-rc5-mm1/
> >
>
> SCSI or libata problem.
> ============================
> [ BUG: illegal lock usage! ]
> ----------------------------
> illegal {in-hardirq-W} -> {hardirq-on-W} usage.
> init/1 [HC0[0]:SC0[0]:HE1:SE1] takes:
> (&base->lock#2){++..}, at: [<c0129a24>] lock_timer_base+0x29/0x55
> {in-hardirq-W} state was registered at:
> [<c0139a56>] lockdep_acquire+0x69/0x82
> [<c02f237c>] _spin_lock_irqsave+0x2a/0x3a
> [<c0129a24>] lock_timer_base+0x29/0x55
> [<c0129e48>] del_timer+0x19/0x4c
> [<c02651e2>] scsi_delete_timer+0xe/0x1f
> [<c0262964>] scsi_done+0xb/0x19
> [<c0273ed3>] ata_scsi_qc_complete+0x73/0x7f
> [<c027024a>] __ata_qc_complete+0x26c/0x274
> [<c02704f0>] ata_qc_complete+0xd5/0xdc
> [<c0270c42>] ata_hsm_qc_complete+0x201/0x210
> [<c02713e7>] ata_hsm_move+0x796/0x7ac
> [<c027314e>] ata_interrupt+0x173/0x1b4
> [<c014c4f4>] handle_IRQ_event+0x20/0x50
> [<c014d76e>] handle_level_irq+0xa1/0xeb
> [<c010579c>] do_IRQ+0xa1/0xc9

That's the second report of del_timer-in-hardirq being a bug.

Unfortunately I'm unable to decrypt the local validator's output. Perhaps
when Arjan and Ingo do the analysis of these reports they could provide a
little guidance into what the traces are actually telling us, so that
others can learn to use them?
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