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Hi All I regularly see this overnight crash on my PC running Fedora 14 kernel 2.6.35.6-45. Can someone tell is this a known Bug in kernel? Below is the call ...
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  1. #1
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    Question 2.6.35.6-45 kernel crash in do_raw_spin_lock


    Hi All

    I regularly see this overnight crash on my PC running Fedora 14 kernel 2.6.35.6-45. Can someone tell is this a known Bug in kernel? Below is the call trace.


    [36108.155351] Call Trace:
    [36108.157893] [<ffffffff8145ed18>] _raw_spin_lock_bh+0x1f/0x21
    [36108.163881] [<ffffffff81434f75>] br_device_event+0xad/0x154
    [36108.169729] [<ffffffff81461f34>] notifier_call_chain+0x37/0x63
    [36108.175865] [<ffffffff8106a5f0>] raw_notifier_call_chain+0x14/0x16
    [36108.182345] [<ffffffff813bcf5f>] call_netdevice_notifiers+0x4a/0x4f
    [36108.188989] [<ffffffff813be86e>] __dev_notify_flags+0x3c/0x60
    [36108.195018] [<ffffffff813be8dd>] dev_change_flags+0x4b/0x56
    [36108.200887] [<ffffffff813c82dc>] do_setlink+0x2af/0x614
    [36108.206388] [<ffffffff811132e0>] ? mem_cgroup_charge_common+0x6a/0x7a
    [36108.213138] [<ffffffff810dc4d2>] ? __lru_cache_add+0x37/0x5d
    [36108.219074] [<ffffffff813c8fd3>] rtnl_newlink+0x24c/0x409
    [36108.224816] [<ffffffff813c8e4b>] ? rtnl_newlink+0xc4/0x409
    [36108.230563] [<ffffffff8122a68e>] ? __nla_put+0x12/0x26
    [36108.236005] [<ffffffff81105c71>] ? __raw_local_irq_save+0x1d/0x23
    [36108.242449] [<ffffffff81077e8d>] ? __raw_local_irq_save+0x1d/0x23
    [36108.248846] [<ffffffff8145eb37>] ? _raw_spin_unlock_irqrestore+0x17/0x19
    [36108.255899] [<ffffffff81105c71>] ? __raw_local_irq_save+0x1d/0x23
    [36108.262352] [<ffffffff813c8b8f>] rtnetlink_rcv_msg+0x1eb/0x201
    [36108.268472] [<ffffffff8103c040>] ? need_resched+0x23/0x2d
    [36108.274084] [<ffffffff813c89a4>] ? rtnetlink_rcv_msg+0x0/0x201
    [36108.280211] [<ffffffff813dc4ca>] netlink_rcv_skb+0x45/0x91
    [36108.285937] [<ffffffff813c7f20>] rtnetlink_rcv+0x26/0x2d
    [36108.291536] [<ffffffff813dc00c>] netlink_unicast+0xee/0x157
    [36108.297446] [<ffffffff813dc2d5>] netlink_sendmsg+0x260/0x26f
    [36108.303450] [<ffffffff813aba19>] ? __sock_recvmsg+0x7a/0x89
    [36108.309308] [<ffffffff813ab993>] __sock_sendmsg+0x6b/0x77
    [36108.315095] [<ffffffff813abced>] sock_sendmsg+0xa8/0xc1
    [36108.320570] [<ffffffff81111b9c>] ? try_get_mem_cgroup_from_mm+0x33/0x3f
    [36108.327529] [<ffffffff8103c040>] ? need_resched+0x23/0x2d
    [36108.333239] [<ffffffff8103c040>] ? need_resched+0x23/0x2d
    [36108.338905] [<ffffffff8103c058>] ? should_resched+0xe/0x2e
    [36108.344721] [<ffffffff8103c040>] ? need_resched+0x23/0x2d
    [36108.350457] [<ffffffff8103c058>] ? should_resched+0xe/0x2e
    [36108.356139] [<ffffffff813b5906>] ? copy_from_user+0x2f/0x31
    [36108.362007] [<ffffffff813b5cf6>] ? verify_iovec+0x54/0x92
    [36108.367705] [<ffffffff813adb7f>] sys_sendmsg+0x235/0x2b3
    [36108.373324] [<ffffffff810e9199>] ? pmd_offset+0x19/0x40
    [36108.378833] [<ffffffff8111f4d1>] ? path_put+0x22/0x27
    [36108.384161] [<ffffffff810998ed>] ? audit_syscall_entry+0x11c/0x148
    [36108.390615] [<ffffffff81009cf2>] system_call_fastpath+0x16/0x1b
    [36108.396768] Code: e5 0f 1f 44 00 00 f0 ff 07 c9 c3 55 48 89 e5 0f 1f 44 00 00 f0 81 07 00 00 00 01 c9 c3 55 48 89 e5 0f 1f 44 00 00 b8 00 00 01 00 <f0> 0f c1 07 0f b7 d0 c1 e8 10 39 c2 74 07 f3 90 0f b7 17 eb f5
    [36108.417838] RIP [<ffffffff81077ef0>] do_raw_spin_lock+0xe/0x25

    Regards,
    Saurabh

  2. #2
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    Unhappy

    Can anyone please give some comment on the below stack trace? what could be happening?

    -Saurabh

    Quote Originally Posted by saurabh_ag82 View Post
    Hi All

    I regularly see this overnight crash on my PC running Fedora 14 kernel 2.6.35.6-45. Can someone tell is this a known Bug in kernel? Below is the call trace.


    [36108.155351] Call Trace:
    [36108.157893] [<ffffffff8145ed18>] _raw_spin_lock_bh+0x1f/0x21
    [36108.163881] [<ffffffff81434f75>] br_device_event+0xad/0x154
    [36108.169729] [<ffffffff81461f34>] notifier_call_chain+0x37/0x63
    [36108.175865] [<ffffffff8106a5f0>] raw_notifier_call_chain+0x14/0x16
    [36108.182345] [<ffffffff813bcf5f>] call_netdevice_notifiers+0x4a/0x4f
    [36108.188989] [<ffffffff813be86e>] __dev_notify_flags+0x3c/0x60
    [36108.195018] [<ffffffff813be8dd>] dev_change_flags+0x4b/0x56
    [36108.200887] [<ffffffff813c82dc>] do_setlink+0x2af/0x614
    [36108.206388] [<ffffffff811132e0>] ? mem_cgroup_charge_common+0x6a/0x7a
    [36108.213138] [<ffffffff810dc4d2>] ? __lru_cache_add+0x37/0x5d
    [36108.219074] [<ffffffff813c8fd3>] rtnl_newlink+0x24c/0x409
    [36108.224816] [<ffffffff813c8e4b>] ? rtnl_newlink+0xc4/0x409
    [36108.230563] [<ffffffff8122a68e>] ? __nla_put+0x12/0x26
    [36108.236005] [<ffffffff81105c71>] ? __raw_local_irq_save+0x1d/0x23
    [36108.242449] [<ffffffff81077e8d>] ? __raw_local_irq_save+0x1d/0x23
    [36108.248846] [<ffffffff8145eb37>] ? _raw_spin_unlock_irqrestore+0x17/0x19
    [36108.255899] [<ffffffff81105c71>] ? __raw_local_irq_save+0x1d/0x23
    [36108.262352] [<ffffffff813c8b8f>] rtnetlink_rcv_msg+0x1eb/0x201
    [36108.268472] [<ffffffff8103c040>] ? need_resched+0x23/0x2d
    [36108.274084] [<ffffffff813c89a4>] ? rtnetlink_rcv_msg+0x0/0x201
    [36108.280211] [<ffffffff813dc4ca>] netlink_rcv_skb+0x45/0x91
    [36108.285937] [<ffffffff813c7f20>] rtnetlink_rcv+0x26/0x2d
    [36108.291536] [<ffffffff813dc00c>] netlink_unicast+0xee/0x157
    [36108.297446] [<ffffffff813dc2d5>] netlink_sendmsg+0x260/0x26f
    [36108.303450] [<ffffffff813aba19>] ? __sock_recvmsg+0x7a/0x89
    [36108.309308] [<ffffffff813ab993>] __sock_sendmsg+0x6b/0x77
    [36108.315095] [<ffffffff813abced>] sock_sendmsg+0xa8/0xc1
    [36108.320570] [<ffffffff81111b9c>] ? try_get_mem_cgroup_from_mm+0x33/0x3f
    [36108.327529] [<ffffffff8103c040>] ? need_resched+0x23/0x2d
    [36108.333239] [<ffffffff8103c040>] ? need_resched+0x23/0x2d
    [36108.338905] [<ffffffff8103c058>] ? should_resched+0xe/0x2e
    [36108.344721] [<ffffffff8103c040>] ? need_resched+0x23/0x2d
    [36108.350457] [<ffffffff8103c058>] ? should_resched+0xe/0x2e
    [36108.356139] [<ffffffff813b5906>] ? copy_from_user+0x2f/0x31
    [36108.362007] [<ffffffff813b5cf6>] ? verify_iovec+0x54/0x92
    [36108.367705] [<ffffffff813adb7f>] sys_sendmsg+0x235/0x2b3
    [36108.373324] [<ffffffff810e9199>] ? pmd_offset+0x19/0x40
    [36108.378833] [<ffffffff8111f4d1>] ? path_put+0x22/0x27
    [36108.384161] [<ffffffff810998ed>] ? audit_syscall_entry+0x11c/0x148
    [36108.390615] [<ffffffff81009cf2>] system_call_fastpath+0x16/0x1b
    [36108.396768] Code: e5 0f 1f 44 00 00 f0 ff 07 c9 c3 55 48 89 e5 0f 1f 44 00 00 f0 81 07 00 00 00 01 c9 c3 55 48 89 e5 0f 1f 44 00 00 b8 00 00 01 00 <f0> 0f c1 07 0f b7 d0 c1 e8 10 39 c2 74 07 f3 90 0f b7 17 eb f5
    [36108.417838] RIP [<ffffffff81077ef0>] do_raw_spin_lock+0xe/0x25

    Regards,
    Saurabh

  3. #3
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    What system do you run ?
    I ask because 'known bugs' might be known on particular systems and be unknown on others.
    Do you see some description ?
    Usually, you should see a human-readable (not surely understandable) description and then a stack trace.
    Correct me if I'm wrong, this does not crash the system rather warns about something.

  4. #4
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    I am running 2.6.35.6 fedora. This is a actual crash which hangs the PC and not just a warning. I have observed a few things around this

    1. if bridge.ko is installed and i remove one of the bridge interface from my bridge module then i see the crash. Like say the bridge is between tun0 and tun1 and i do "ip link set down" on one of tun0 or tun1 then I see the reported crash.
    2. If bridge.ko is not installed then the above steps do not cause a crash.

    -Saurabh

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