Messages in this thread | | | Date | Mon, 21 Nov 2005 10:36:00 -0500 | From | Brice Goglin <> | Subject | Re: Linux 2.6.14: Badness in as-iosched |
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Jens Axboe wrote:
>On Thu, Nov 10 2005, Brice Goglin wrote: > > >>Hi Jens, >> >>I just hit a badness (actually, tons of badness like this) in as-iosched >>while ripping >>an audio CD with ripperX (with cdparanoia as a backend). >>I was using 2.6.14 on an IBM Thinkpad R52. The kernel has been compiled with >>gcc-4.0.2-2 (Debian testing). >> >>The first badness in dmesg is: >> >>cdrom: dropping to single frame dma >>arq->state: 4 >>Badness in as_insert_request at drivers/block/as-iosched.c:1519 >> [<c0237410>] as_insert_request+0x70/0x1d0 >> [<c022dc25>] __elv_add_request+0xa5/0xe0 >> [<c022dc8b>] elv_add_request+0x2b/0x40 >> [<c0230fe6>] blk_execute_rq_nowait+0x46/0x60 >> [<c023107a>] blk_execute_rq+0x7a/0xe0 >> [<c0231310>] blk_end_sync_rq+0x0/0x30 >> [<c0160b77>] bio_phys_segments+0x27/0x30 >> [<c0232610>] blk_rq_bio_prep+0x40/0xb0 >> [<c0230dc7>] blk_rq_map_user+0xb7/0xf0 >> [<c026bc32>] cdrom_read_cdda_bpc+0x182/0x210 >> [<c026bd1b>] cdrom_read_cdda+0x5b/0xc0 >> >> > >Similar case was posted yesterday (I realize yours is older, just missed >it the first time around), see my explanation here: > >http://lkml.org/lkml/2005/11/20/119 > >And work-around below. > > Thank you very much, Jens. Is this patch going to -stable ?
Brice Goglin
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