[DragonFlyBSD - Bug #1276] (Closed) panic: assertion: volume->io.lock.refs == 0 in hammer_unload_volume

Francois Tigeot via Redmine bugtracker-admin at leaf.dragonflybsd.org
Sat Jan 21 05:54:24 PST 2012

Issue #1276 has been updated by Francois Tigeot.

Status changed from Resolved to Closed

Bug #1276: panic: assertion: volume->io.lock.refs == 0 in hammer_unload_volume

Author: Thomas Nikolajsen
Status: Closed
Priority: Normal
Target version: 

Using HEAD of yesterday, Feb 8, 2009,
I got this panic at shutdown.

Have seen same panic a few times using 2.0.1.

Uploading crash dump to leaf as .28.

panic: assertion: volume->io.lock.refs == 0 in hammer_unload_volume
Trace beginning at frame 0xd28d1b4c
panic(d28d1b70,c0d9b308,c0e51004,d20d4000,d28d1b88) at panic+0x8c
panic(d20cd972,d20ce19c,d20ccfc1,1108,c0d9b308) at panic+0x8c
hammer_unload_volume(c0d9b308,0,0,0,0) at hammer_unload_volume+0x6c
hammer_vol_rb_tree_RB_SCAN(d20d400c,0,d20ba4ee,0,d20d402c) at 
hammer_free_hmp(c7a47a10,c7a47808,d28d1c2c,c01f1f89,c7a47808) at 
hammer_vfs_unmount(c7a47808,80000,80000,c7a47828,1) at hammer_vfs_unmount+0x33
dounmount(c7a47808,80000,c7a47808,1,d28d1c7c) at dounmount+0x1a8
vfs_umountall_callback(c7a47808,0,c0416574,0,1) at vfs_umountall_callback+0x13
mountlist_scan(c01eaced,0,6) at mountlist_scan+0xe8
vfs_unmountall(0,0,1,c019def6,c0d60870) at vfs_unmountall+0x11
boot(0,d28d1d34,c0305d65,d28d1cf0,6) at boot+0x21d
sys_reboot(d28d1cf0,6,3d1c,0,c7a42dc8) at sys_reboot+0x25
syscall2(d28d1d40) at syscall2+0x1ef
Xint0x80_syscall() at Xint0x80_syscall+0x36

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