The bug reproduces on the latest kernel by any sufficiently intensive inbound network traffic.
[493647.471008] ------------[ cut here ]------------ [493647.471038] WARNING: at /build/buildd/linux-ti-omap4-3.4.0/net/ipv4/tcp.c:1496 tcp_recvmsg+0x21c/0x9c8() [493647.471038] recvmsg bug: copied DD1FCC28 seq DD1FD1D0 rcvnxt DD2B2E20 fl 0 [493647.471069] Modules linked in: gpio_keys leds_gpio [last unloaded: wlcore_sdio] [493647.471099] [<c001bc38>] (unwind_backtrace+0x0/0xec) from [<c05a58f0>] (dump_stack+0x20/0x24) [493647.471130] [<c05a58f0>] (dump_stack+0x20/0x24) from [<c0045044>] (warn_slowpath_common+0x5c/0x74) [493647.471130] [<c0045044>] (warn_slowpath_common+0x5c/0x74) from [<c0045118>] (warn_slowpath_fmt+0x40/0x48) [493647.471160] [<c0045118>] (warn_slowpath_fmt+0x40/0x48) from [<c04fa004>] (tcp_recvmsg+0x21c/0x9c8) [493647.471191] [<c04fa004>] (tcp_recvmsg+0x21c/0x9c8) from [<c051a65c>] (inet_recvmsg+0xb0/0xc8) [493647.471191] [<c051a65c>] (inet_recvmsg+0xb0/0xc8) from [<c04a58ec>] (do_sock_read+0xd8/0xe8) [493647.471221] [<c04a58ec>] (do_sock_read+0xd8/0xe8) from [<c04a6854>] (sock_aio_read+0x70/0x78) [493647.471252] [<c04a6854>] (sock_aio_read+0x70/0x78) from [<c0142440>] (do_sync_read+0xac/0xe8) [493647.471252] [<c0142440>] (do_sync_read+0xac/0xe8) from [<c0142ef8>] (vfs_read+0xc8/0x18c) [493647.471282] [<c0142ef8>] (vfs_read+0xc8/0x18c) from [<c0143008>] (sys_read+0x4c/0x78) [493647.471313] [<c0143008>] (sys_read+0x4c/0x78) from [<c0013200>] (ret_fast_syscall+0x0/0x30) [493647.471313] ---[ end trace 346ae6e25f6a5d08 ]--- [493647.471374] ------------[ cut here ]------------ [493647.471405] WARNING: at /build/buildd/linux-ti-omap4-3.4.0/net/ipv4/tcp.c:1508 tcp_recvmsg+0x27c/0x9c8() [493647.471405] recvmsg bug 2: copied DD1FCC28 seq DD1FCC28 rcvnxt DD2B2E20 fl 0 [493647.471435] Modules linked in: gpio_keys leds_gpio [last unloaded: wlcore_sdio] [493647.471466] [<c001bc38>] (unwind_backtrace+0x0/0xec) from [<c05a58f0>] (dump_stack+0x20/0x24) [493647.471496] [<c05a58f0>] (dump_stack+0x20/0x24) from [<c0045044>] (warn_slowpath_common+0x5c/0x74) [493647.471496] [<c0045044>] (warn_slowpath_common+0x5c/0x74) from [<c0045118>] (warn_slowpath_fmt+0x40/0x48) [493647.471527] [<c0045118>] (warn_slowpath_fmt+0x40/0x48) from [<c04fa064>] (tcp_recvmsg+0x27c/0x9c8) [493647.471557] [<c04fa064>] (tcp_recvmsg+0x27c/0x9c8) from [<c051a65c>] (inet_recvmsg+0xb0/0xc8) [493647.471588] [<c051a65c>] (inet_recvmsg+0xb0/0xc8) from [<c04a58ec>] (do_sock_read+0xd8/0xe8) [493647.471588] [<c04a58ec>] (do_sock_read+0xd8/0xe8) from [<c04a6854>] (sock_aio_read+0x70/0x78) [493647.471618] [<c04a6854>] (sock_aio_read+0x70/0x78) from [<c0142440>] (do_sync_read+0xac/0xe8) [493647.471649] [<c0142440>] (do_sync_read+0xac/0xe8) from [<c0142ef8>] (vfs_read+0xc8/0x18c) [493647.471649] [<c0142ef8>] (vfs_read+0xc8/0x18c) from [<c0143008>] (sys_read+0x4c/0x78) [493647.471679] [<c0143008>] (sys_read+0x4c/0x78) from [<c0013200>] (ret_fast_syscall+0x0/0x30) [493647.471710] ---[ end trace 346ae6e25f6a5d09 ]--- ** Attachment added: "dmesg.gz" https://bugs.launchpad.net/ubuntu/+source/linux-ti-omap4/+bug/1030397/+attachment/3457079/+files/dmesg.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1030397 Title: slowpath in tcp_recvmsg on pandaboard es To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-ti-omap4/+bug/1030397/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
