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Groups > linux.kernel > #1631477
| From | Eric Dumazet <edumazet@google.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: net/tcp: warning in tcp_try_coalesce/skb_try_coalesce |
| Date | 2017-04-26 16:20 +0200 |
| Message-ID | <tAvXr-3oc-1@gated-at.bofh.it> (permalink) |
| References | <t5GvM-19j-25@gated-at.bofh.it> <tAtVE-26E-17@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, Apr 26, 2017 at 5:08 AM, Andrey Konovalov <andreyknvl@google.com> wrote: > On Tue, Jan 31, 2017 at 2:17 PM, Andrey Konovalov <andreyknvl@google.com> wrote: >> Hi, >> >> I've got the following error report while running the syzkaller fuzzer. >> >> On commit 566cf877a1fcb6d6dc0126b076aad062054c2637 (4.10-rc6). >> >> The fuzzer hits this issue quite often, but I don't have a working reproducer. > > I still see this on 5a7ad1146caa895ad718a534399e38bd2ba721b7 (4.11-rc8). > > I also have a reproducer now, attached. > > It takes around 10 seconds for the warning to trigger. > It does not trigger for me, but seeing that you use SO_ATTACH_FILTER, I have a pretty good idea how to remove this splat. A call to skb_condense() from ___pskb_trim() will likely help, I will post a patch after my commute. Thanks.
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Re: net/tcp: warning in tcp_try_coalesce/skb_try_coalesce Eric Dumazet <edumazet@google.com> - 2017-04-26 16:20 +0200
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