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Bug #7421

closed

panic in signalfd

Added by Robert Mustacchi almost 6 years ago. Updated almost 6 years ago.

Status:
Closed
Priority:
Normal
Category:
kernel
Start date:
2016-09-27
Due date:
% Done:

100%

Estimated time:
Difficulty:
Medium
Tags:
Gerrit CR:

Description

When running a zone-reboot workload, I've been able to reliably induce failures similar to this on my memory-constrained test VM:

debugging crash dump vmcore.3 (64-bit) from 00-0c-29-18-ec-10
operating system: 5.11 joyent_20160218T004651Z (i86pc)
image uuid: (not set)
panic message: mutex_enter: bad mutex, lp=ffffff0151934718 owner=6f767a2f76656428 thread=ffffff014a5fd460
dump content: kernel pages only
> $C
ffffff0004ae7bb0 vpanic()
ffffff0004ae7bd0 mutex_panic+0x58(fffffffffb94ceeb, ffffff0151934718)
ffffff0004ae7c40 mutex_vector_enter+0x347(ffffff0151934718)
ffffff0004ae7ca0 signalfd_pollwake_cb+0xc7(ffffff0151a5c028, 17)
ffffff0004ae7d00 sigtoproc+0x1b7(ffffff0151a5c028, 0, 17)
ffffff0004ae7d40 killall+0x96(2a, 0)
ffffff0004ae7d70 zone_empty+0x2e(ffffff01631466c0)
ffffff0004ae7db0 zone_shutdown+0xe6(2a)
ffffff0004ae7f00 zone+0x237(5, 2a, 0, 1, 540)
ffffff0004ae7f10 sys_syscall+0x1bd()
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