Messages in this thread | | | Date | Sat, 15 Mar 2003 09:15:11 +0100 | From | Jens Axboe <> | Subject | Re: 2.5.64-mm6: oops in elv_remove_request |
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On Fri, Mar 14 2003, Jeremy Fitzhardinge wrote: > On Fri, 2003-03-14 at 12:33, Jens Axboe wrote: > > On Fri, Mar 14 2003, Jeremy Fitzhardinge wrote: > > > With the version or cdrtools I compiled, I get an instant oops+lockup > > > with the above command when running with anticipatory scheduler in > > > 2.5.64-mm6 (hand written): > > > > > > elv_remove_request > > > ide_end_request > > > cdrom_end_request > > > cdrom_decode_status > > > cdrom_newpc_intr > > > > > > --- drivers/block/as-iosched.c~ 2003-03-14 21:32:14.000000000 +0100 > > +++ drivers/block/as-iosched.c 2003-03-14 21:32:38.000000000 +0100 > > @@ -1341,6 +1341,8 @@ > > insert_here = ad->dispatch->prev; > > > > list_add(&rq->queuelist, insert_here); > > + if (arq) > > + RB_CLEAR(&arq->rb_node); > > > > if (!list_empty(ad->dispatch) && rq_data_dir(rq) == READ > > && (ad->antic_status == ANTIC_WAIT_REQ > > No joy, I'm afraid. Same crash.
Too bad, then there are two bugs in there :/
-- Jens Axboe
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