Re: smp dead lock of io_request_lock/queue_lock patch

[Jens Axboe]

On Thu, Jan 15 2004, Bill Davidsen wrote:
> Doug Ledford wrote:
> >On Mon, 2004-01-12 at 04:22, Jens Axboe wrote:
> >
> >>On Mon, Jan 12 2004, Arjan van de Ven wrote:
> >>
> >>>On Mon, Jan 12, 2004 at 10:19:46AM +0100, Jens Axboe wrote:
> >>>
> >>>>... and still exists in your 2.4.21 based kernel.
> >>>
> >>>The RHL 2.4.21 kernels don't have the locking patch at all...
> >>
> >>But RHEL3 does:
> >>
> >>http://kernelnewbies.org/kernels/rhel3/SOURCES/linux-2.4.21-iorl.patch
> >>
> >>and the bug is there.
> >
> >
> >But in RHEL3 the bug is fixed already (not in a released kernel, but the
> >fix went into our internal kernel some time back and will be in our next
> >update kernel).  From my internal bk tree for this stuff:
> 
> "not in a released kernel..." Do I read this right? That you have a fix 
> for a critical bug and it hasn't been pushed to customers yet? How about 
> security bugs, has the fix you pushed in RH-9.0 been push to EL customers?

Calm down, it's a bug fix for a deadlock that _could_ trigger on SMP
only in SCSI error recovery.

-- 
Jens Axboe

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/