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LIN8-8597 : 32 core VM hangs in tipc handler

Created: Jan 26, 2018    Updated: Dec 3, 2018
Resolved Date: Apr 25, 2018
Found In Version:
Fix Version:
Severity: Critical
Applicable for: Wind River Linux 8
Component/s: Kernel, Userspace


The following crash happens on a virtualized system using tipc node configuration. It typically happens within 2 to 8 hours of being running the virtual machine.

We have received the vmcores and vmlinuz from the crash . We don't have a test case for this issue, due to the configuration is complex since this is happening in a cluster environment with more than 10 nodes.

crash> bt -c 1
PID: 14 TASK: ffff880b6a106180 CPU: 1 COMMAND: "ksoftirqd/1"
[exception RIP: _raw_spin_lock_irqsave+82]
RIP: ffffffff8199ce62 RSP: ffff880b6a11bc78 RFLAGS: 00000016
RAX: 0000000000000102 RBX: ffff880b6880a700 RCX: 0000000000000072
RDX: 000000000000071a RSI: 0000000000000066 RDI: 0000000000000001
RBP: ffff880b6a11bc88 R8: ffff880b6a118000 R9: 0000000000000000
R10: 0000000000000001 R11: 0000000000000261 R12: 0000000000000292
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
CS: 0010 SS: 0018
#0 [ffff880b6a11bc90] __wake_up at ffffffff810e5be7
#1 [ffff880b6a11bcd0] sock_def_wakeup at ffffffff817e6cdd
#2 [ffff880b6a11bcf0] tipc_sk_timeout at ffffffffa0043ac0 [tipc]
#3 [ffff880b6a11bd40] call_timer_fn at ffffffff81101c82
#4 [ffff880b6a11bd80] run_timer_softirq at ffffffff81101fd4
#5 [ffff880b6a11be00] __do_softirq at ffffffff810ad2f5
#6 [ffff880b6a11be70] run_ksoftirqd at ffffffff810ad581
#7 [ffff880b6a11be80] smpboot_thread_fn at ffffffff810c9f18
#8 [ffff880b6a11bec0] kthread at ffffffff810c70d9
#9 [ffff880b6a11bf50] ret_from_fork at ffffffff8199dba2

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