Messages in this thread Patch in this message | | | Date | Thu, 1 Nov 2007 11:51:09 +0100 | From | Jens Axboe <> | Subject | Re: 2.4.24-rc1-git: crash on shutdown/unmount? |
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On Wed, Oct 31 2007, Alistair John Strachan wrote: > Hi Jens, > > I guessed from the oops that you might have an idea what's causing this oops > on shutdown/unmount. The git version (describe), a screenshot showing the > oops, a config, and dmesg for a booted kernel are available from: > > http://devzero.co.uk/~alistair/oops-20071031/ > > I went back to -rc1 and it still happens there too. If you need any more > information or want me to bisect it, please let me know.
Does this work for you?
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index 54fd385..75c98d5 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -3221,6 +3221,7 @@ static inline void __generic_make_request(struct bio *bio) sector_t old_sector; int ret, nr_sectors = bio_sectors(bio); dev_t old_dev; + int err = -EIO; might_sleep(); @@ -3248,7 +3249,7 @@ static inline void __generic_make_request(struct bio *bio) bdevname(bio->bi_bdev, b), (long long) bio->bi_sector); end_io: - bio_endio(bio, -EIO); + bio_endio(bio, err); break; } @@ -3283,6 +3284,10 @@ end_io: if (bio_check_eod(bio, nr_sectors)) goto end_io; + if (bio_empty_barrier(bio) && !q->prepare_flush_fn) { + err = -EOPNOTSUPP; + goto end_io; + } ret = q->make_request_fn(q, bio); } while (ret); -- Jens Axboe
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