On Fri, Mar 3, 2017 at 10:24 AM, Dmitry Vyukov <dvyu...@google.com> wrote: > On Fri, Mar 3, 2017 at 7:10 PM, Dmitry Vyukov <dvyu...@google.com> wrote: >> Hello, >>
> Wonder if this has been causing other crashes like this one? > > ------------[ cut here ]------------ > kernel BUG at net/ipv4/tcp_output.c:2748! > Call Trace: > <IRQ> > tcp_retransmit_skb+0x2e/0x230 net/ipv4/tcp_output.c:2822 > tcp_retransmit_timer+0x104c/0x2d50 net/ipv4/tcp_timer.c:491 > tcp_write_timer_handler+0x334/0x9d0 net/ipv4/tcp_timer.c:574 > tcp_write_timer+0x164/0x180 net/ipv4/tcp_timer.c:592 > call_timer_fn+0x241/0x820 kernel/time/timer.c:1266 > expire_timers kernel/time/timer.c:1305 [inline] > __run_timers+0x960/0xcf0 kernel/time/timer.c:1599 > run_timer_softirq+0x21/0x80 kernel/time/timer.c:1612 > __do_softirq+0x31f/0xbe7 kernel/softirq.c:284 > invoke_softirq kernel/softirq.c:364 [inline] > irq_exit+0x1cc/0x200 kernel/softirq.c:405 > exiting_irq arch/x86/include/asm/apic.h:658 [inline] > smp_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:962 > apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:487 > > if (before(TCP_SKB_CB(skb)->seq, tp->snd_una)) { > if (before(TCP_SKB_CB(skb)->end_seq, tp->snd_una)) > BUG(); This path uses a socket lock. Probably different problem.