[DragonFlyBSD - Bug #1277] (Closed) panic: spin_lock: 0xc89c9578, indefinite wait!

[bugtracker-admin at leaf.dragonflybsd.org]

Issue #1277 has been updated by tuxillo.

Description updated
Category set to Kernel
Status changed from New to Closed
Assignee deleted (0)
Target version set to 4.2.x

Hi,

No feedback and haven't seen similar reports indicating it could be a global problem so closing this one.

Cheers,
Antonio Huete

----------------------------------------
Bug #1277: panic: spin_lock: 0xc89c9578, indefinite wait!
http://bugs.dragonflybsd.org/issues/1277#change-12499

* Author: thomas.nikolajsen
* Status: Closed
* Priority: Normal
* Assignee: 
* Category: Kernel
* Target version: 4.2.x
----------------------------------------
Using HEAD from Feb 1, 2009 I got
temporary freeze, ~1 minute, and then panic.

This SMP (w/ APIC_IO) kernel on UP host.

Freeze happens when accessing file with UFS filesystem
(for vkernel), just after output when fsck finishes:
vnconfig -cs labels vn0 FILE
fsck -y FILE
mount /dev/vn0s0a /mnt

I have seen this panic a few times;
not every time script w/ commands run.

Crash dump uploaded to leaf as *.41.

 -thomas
-
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
Trace beginning at frame 0xd394db84
exponential_backoff(80000000,80000000,d394dba4,d394dbc0,c01b3bbe) at 
exponential_backoff+0xe7
exponential_backoff(ff800000,1,b,c89c9578,c8a53cb) at exponential_backoff+0xe7
spin_lock_wr_contested(c89c9578,d6191ec0) at spin_lock_wr_contested+0x51
lockmgr(c89c9578,1) at lockmgr+0xa8
vfs_busy(c89c9558,0) at vfs_busy+0x42
nlookup(d394dc38,c89c4458,c0f868a8,c89d8cd8,c0f868a8) at nlookup+0x41d
kern_mountctl(c909dc00,10,0,c101e8d8,88) at kern_mountctl+0x38
sys_mountctl(d394dcf0,6,0,0,c89d9398) at sys_mountctl+0x1f5
syscall2(d394dd40) at syscall2+0x265
Xint0x80_syscall() at Xint0x80_syscall+0x36
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
spin_lock: 0xc89c9578, indefinite wait!
panic: spin_lock: 0xc89c9578, indefinite wait!

mp_lock = 00000000; cpuid = 0
Trace beginning at frame 0xd394db64
panic(d394db88,d394dba4,17354e1f,d394dba4,d394db98) at panic+0x14d
panic(c035b7d8,c89c9578,80000000,80000000,d394dba4) at panic+0x14d
exponential_backoff(ff800000,1,3c,c89c9578,16feaf84) at exponential_backoff+0xfa
spin_lock_wr_contested(c89c9578,d6191ec0) at spin_lock_wr_contested+0x51
lockmgr(c89c9578,1) at lockmgr+0xa8
vfs_busy(c89c9558,0) at vfs_busy+0x42
nlookup(d394dc38,c89c4458,c0f868a8,c89d8cd8,c0f868a8) at nlookup+0x41d
kern_mountctl(c909dc00,10,0,c101e8d8,88) at kern_mountctl+0x38
sys_mountctl(d394dcf0,6,0,0,c89d9398) at sys_mountctl+0x1f5
syscall2(d394dd40) at syscall2+0x265
Xint0x80_syscall() at Xint0x80_syscall+0x36
Debugger("panic")

CPU0 stopping CPUs: 0x00000000
 stopped
panic: from debugger
mp_lock = 00000000; cpuid = 0



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