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Groups > linux.kernel > #1572378
| From | Dmitry Vyukov <dvyukov@google.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: net/tcp: warning in tcp_try_coalesce/skb_try_coalesce |
| Date | 2017-02-02 15:10 +0100 |
| Message-ID | <t6qff-54C-11@gated-at.bofh.it> (permalink) |
| References | (2 earlier) <t6lyW-1O8-13@gated-at.bofh.it> <t6oGu-3Tn-27@gated-at.bofh.it> <t6p9w-441-25@gated-at.bofh.it> <t6pVU-4Ix-23@gated-at.bofh.it> <t6q5A-4M6-27@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, Feb 2, 2017 at 2:56 PM, Dmitry Vyukov <dvyukov@google.com> wrote: > On Thu, Feb 2, 2017 at 2:40 PM, Eric Dumazet <eric.dumazet@gmail.com> wrote: >> On Thu, 2017-02-02 at 13:59 +0100, Dmitry Vyukov wrote: >> >>> >>> Right, I can confirm that this is not happening on net-next tip >>> (62e13097c46c69dbd7544ab2cd585ccf48f360a4). >>> I reproduced it on a random month old commit on net-next, though >>> (23a8ed4a624324dc696c328f09bd502c4a3816f0). Let's consider that this >>> is accidentally fixed by something in that range. >> >> This also might depend on the .config >> >> I tried 23a8ed4a624324dc696c328f09bd502c4a3816f0 and could not trigger >> the warning . > > > I've attached my config. > But I've tried with the same config on both revisions. > > Well, there is also a chance that the bug is not fixed, but requires > slightly different reproducer after some changes. Hummm.... My config includes KASAN+KCOV and I use gcc version 7.0.0 20161208 (experimental) (GCC). I've now tried to turn off KASAN+KCOV and compiled with my stock 4.8.4, and this did _not_ trigger the warning on 23a8ed4a624324dc696c328f09bd502c4a3816f0.
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net/tcp: warning in tcp_try_coalesce/skb_try_coalesce Andrey Konovalov <andreyknvl@google.com> - 2017-01-31 14:20 +0100
Re: net/tcp: warning in tcp_try_coalesce/skb_try_coalesce Eric Dumazet <edumazet@google.com> - 2017-01-31 15:30 +0100
Re: net/tcp: warning in tcp_try_coalesce/skb_try_coalesce Dmitry Vyukov <dvyukov@google.com> - 2017-02-02 10:10 +0100
Re: net/tcp: warning in tcp_try_coalesce/skb_try_coalesce Eric Dumazet <eric.dumazet@gmail.com> - 2017-02-02 13:30 +0100
Re: net/tcp: warning in tcp_try_coalesce/skb_try_coalesce Dmitry Vyukov <dvyukov@google.com> - 2017-02-02 14:00 +0100
Re: net/tcp: warning in tcp_try_coalesce/skb_try_coalesce Eric Dumazet <eric.dumazet@gmail.com> - 2017-02-02 14:50 +0100
Re: net/tcp: warning in tcp_try_coalesce/skb_try_coalesce Dmitry Vyukov <dvyukov@google.com> - 2017-02-02 15:10 +0100
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