Messages in this thread | | | Date | Tue, 13 Oct 2009 16:51:24 +0200 | From | Eric Dumazet <> | Subject | Re: PROBLEM: kernel oops when tickless. 2.6.28.x to 2.6.31.3 |
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Craig Sanders a écrit : > On Tue, Oct 13, 2009 at 12:07:37PM +0200, Eric Dumazet wrote: >> This particular problem should/could be fixed in 2.6.31.4 by commit >> d99927f4d93f36553699573b279e0ff98ad7dea6 >> (net: Fix sock_wfree() race) >> >> Please try to reproduce your tickless problem on 2.6.31.4 or latest >> Linus git tree > > > I've already compiled 2.6.31.4 @1000HZ, but I'll compile again and try > 2.6.31.4 tickless in the morning. i'll report back with the result - it > usually takes a few days after booting before the Oops occurs, so if it > goes well that might not be until the weekend or early next week. > > any idea what actually triggers it? pppoe? malformed packets from the > internet? udp/514 packets for rsyslogd? >
Oct 13 14:10:02 taz kernel: [170654.573889] [<ffffffff81432b43>] ? sock_wfree+0x83/0x90 Oct 13 14:10:02 taz kernel: [170654.573892] [<ffffffff814370cc>] ? skb_release_head_state+0x5c/0x110 Oct 13 14:10:02 taz kernel: [170654.573894] [<ffffffff81436de9>] ? __kfree_skb+0x9/0xa0 Oct 13 14:10:02 taz kernel: [170654.573896] [<ffffffff8143a48c>] ? skb_free_datagram+0xc/0x40 Oct 13 14:10:02 taz kernel: [170654.573900] [<ffffffff814b5102>] ? unix_dgram_recvmsg+0x202/0x330
This stack trace gives a hint on sock_wfree() that was fixed in 2.6.31.4
Occurrence of the bug might be related to your PREEMPT setting.
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