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Groups > linux.kernel > #1356381
| From | Ming Lei <tom.leiming@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken |
| Date | 2016-03-12 09:50 +0100 |
| Message-ID | <rbNpg-3hA-9@gated-at.bofh.it> (permalink) |
| References | <rbMtb-2Fi-11@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Sat, Mar 12, 2016 at 3:43 PM, Kent Overstreet <kent.overstreet@gmail.com> wrote: > I don't know exactly how it's broken, but with that patch segment counting is > broken - I'm seeing blk_rq_map_sg() overrun the end of the sgtable. > > I suggest reverting it for 4.5... Kent, could you share your test case? I'd like to figure out the root cause. BTW, I don't object to revert it given it is close to v4.5 release, but I am curious how it breaks segment couting. Thanks, Ming Lei
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e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken Kent Overstreet <kent.overstreet@gmail.com> - 2016-03-12 08:50 +0100
Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken Ming Lin <mlin@kernel.org> - 2016-03-12 09:10 +0100
Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken Ming Lei <tom.leiming@gmail.com> - 2016-03-12 09:50 +0100
Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken Kent Overstreet <kent.overstreet@gmail.com> - 2016-03-12 10:30 +0100
Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken Ming Lei <tom.leiming@gmail.com> - 2016-03-12 11:40 +0100
Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken Kent Overstreet <kent.overstreet@gmail.com> - 2016-03-12 13:20 +0100
Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken Ming Lei <tom.leiming@gmail.com> - 2016-03-12 14:40 +0100
Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken Kent Overstreet <kent.overstreet@gmail.com> - 2016-03-12 14:50 +0100
Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken Kent Overstreet <kent.overstreet@gmail.com> - 2016-03-12 15:10 +0100
Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken Ming Lei <tom.leiming@gmail.com> - 2016-03-12 15:30 +0100
Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken Kent Overstreet <kent.overstreet@gmail.com> - 2016-03-12 15:40 +0100
Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken Ming Lei <tom.leiming@gmail.com> - 2016-03-12 15:50 +0100
Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken Linus Torvalds <torvalds@linux-foundation.org> - 2016-03-12 21:00 +0100
Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken Jens Axboe <axboe@kernel.dk> - 2016-03-12 22:20 +0100
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