Messages in this thread | | | Date | Tue, 8 Feb 2005 10:46:35 +0100 | From | Jens Axboe <> | Subject | Re: 2.6.11-rc3-mm1 bad scheduling while atomic + lockup |
| |
On Tue, Feb 08 2005, Andrew Morton wrote: > Jens Axboe <axboe@suse.de> wrote: > > > > > ->axboe! > > > > :-) > > > > The thing wants a rewrite. Ideally the serializing point would be a > > special request. The patch is still better than nothing right now, it's > > really easy to hang the device with hdparm in -linus since it's > > impossible to guess when it is safe to issue tuning actions from user > > space. > > I'm not sure which is worse, really. I've never hung an interface with > hdparm, nor seen any reports of it. Making I/O errors deadly rather hurts.
I've gotten several reports of it, try to tune the drive settings with any kind of drive activity and it will barf.
> Will it happen on all I/O errors, or was this a special case?
Not sure, at least the crc stuff will trigger it. If you want you can deactivate the patch for now, I'll get it fixed properly.
-- Jens Axboe
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |