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Groups > linux.kernel > #1546606
| From | Linus Torvalds <torvalds@linux-foundation.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 |
| Date | 2016-12-22 22:20 +0100 |
| Message-ID | <sRiWm-6ev-41@gated-at.bofh.it> (permalink) |
| References | (6 earlier) <sR3Xj-51C-3@gated-at.bofh.it> <sR533-5Hu-5@gated-at.bofh.it> <sRflM-3Vq-43@gated-at.bofh.it> <sRitj-5Nr-3@gated-at.bofh.it> <sRiMG-69S-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Ok, so the numa issue was a red herring. With that fixed:
On Thu, Dec 22, 2016 at 1:06 PM, Dave Chinner <david@fromorbit.com> wrote:
>
> Better, but still bad. average files/s is not up to 200k files/s,
> so still a good 10-15% off where it should be. xfs_repair is back
> down to 10-15% off where it should be, too. bulkstat still fires off
> a bad page reference count warning, iscsi still panics immediately.
Do you have CONFIG_BLK_WBT enabled, perhaps?
It's new to this merge window, and I'm not convinced it's been tuned.
Particularly for your kinds of fairly extreme IO loads.
Linus
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[4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Dave Chinner <david@fromorbit.com> - 2016-12-14 23:30 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Dave Chinner <david@fromorbit.com> - 2016-12-14 23:40 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Chris Leech <cleech@redhat.com> - 2016-12-16 20:00 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Dave Chinner <david@fromorbit.com> - 2016-12-21 23:30 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-22 00:30 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Chris Leech <cleech@redhat.com> - 2016-12-22 01:20 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Dave Chinner <david@fromorbit.com> - 2016-12-22 06:20 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-22 06:50 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Dave Chinner <david@fromorbit.com> - 2016-12-22 08:00 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Chris Leech <cleech@redhat.com> - 2016-12-22 20:00 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Ming Lei <tom.leiming@gmail.com> - 2016-12-23 01:00 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Chris Leech <cleech@redhat.com> - 2016-12-23 01:10 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Christoph Hellwig <hch@lst.de> - 2016-12-23 11:10 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-23 20:50 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Christoph Hellwig <hch@lst.de> - 2016-12-24 10:50 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Christoph Hellwig <hch@lst.de> - 2016-12-24 11:10 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Christoph Hellwig <hch@lst.de> - 2016-12-24 14:20 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Hannes Reinecke <hare@suse.de> - 2016-12-24 14:20 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Hugh Dickins <hughd@google.com> - 2016-12-22 21:30 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Johannes Weiner <hannes@cmpxchg.org> - 2016-12-23 08:40 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Johannes Weiner <hannes@cmpxchg.org> - 2016-12-23 09:40 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Johannes Weiner <hannes@cmpxchg.org> - 2017-01-02 22:20 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Jan Kara <jack@suse.cz> - 2017-01-03 13:30 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Dave Chinner <david@fromorbit.com> - 2016-12-22 07:30 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-22 18:30 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Thomas Gleixner <tglx@linutronix.de> - 2016-12-22 21:30 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Dave Chinner <david@fromorbit.com> - 2016-12-22 21:50 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Dave Chinner <david@fromorbit.com> - 2016-12-22 22:10 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-22 22:20 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Dave Chinner <david@fromorbit.com> - 2016-12-22 23:20 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Dave Chinner <david@fromorbit.com> - 2016-12-22 23:40 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Dave Chinner <david@fromorbit.com> - 2016-12-23 05:00 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Christoph Hellwig <hch@lst.de> - 2016-12-22 07:20 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Dave Chinner <david@fromorbit.com> - 2016-12-22 07:40 +0100
Re: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Christoph Hellwig <hch@lst.de> - 2016-12-22 07:40 +0100
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