[DragonFlyBSD - Bug #1583] (In Progress) panic: assertion: cursor->trans->sync_lock_refs > 0 in hammer_recover_cursor

[bugtracker-admin at leaf.dragonflybsd.org]

Issue #1583 has been updated by tuxillo.

Description updated
Category set to VFS subsystem
Status changed from New to In Progress
Assignee changed from 0 to tuxillo
Target version set to 3.8.0

Grab.

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Bug #1583: panic: assertion: cursor->trans->sync_lock_refs > 0 in hammer_recover_cursor
http://bugs.dragonflybsd.org/issues/1583#change-11797

* Author: corecode
* Status: In Progress
* Priority: Normal
* Assignee: tuxillo
* Category: VFS subsystem
* Target version: 3.8.0
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Happened when I started 8 mirror-stream at the same time.

(kgdb) bt
#0  _get_mycpu () at ./machine/thread.h:83
#1  dumpsys () at /usr/src/sys/kern/kern_shutdown.c:657
#2  0xc019ba89 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:378
#3  0xc019bdf5 in panic (fmt=0xc032b90c "assertion: %s in %s")
     at /usr/src/sys/kern/kern_shutdown.c:813
#4  0xc0299c7f in hammer_recover_cursor (cursor=0xe84826b4)
     at /usr/src/sys/vfs/hammer/hammer_cursor.c:591
#5  0xc02a5139 in hammer_ioc_mirror_write (trans=0xe8482a50, 
ip=0xea5ce6d0, mirror=0xe51a6f88)
     at /usr/src/sys/vfs/hammer/hammer_mirror.c:465
#6  0xc02a37b8 in hammer_ioctl (ip=0xea5ce6d0, com=3234097160, 
data=0xe51a6f88 "", fflag=1,
     cred=0xc6787308) at /usr/src/sys/vfs/hammer/hammer_ioctl.c:142
#7  0xc02b65e4 in hammer_vop_ioctl (ap=0xe8482aac) at 
/usr/src/sys/vfs/hammer/hammer_vnops.c:2305
#8  0xc0203107 in vop_ioctl (ops=0xe4795b70, vp=0xea5f22e8, 
command=3234097160,
     data=0xe51a6f88 "", fflag=1, cred=0xc6787308, msg=0xe8482cf0)
     at /usr/src/sys/kern/vfs_vopops.c:389
#9  0xc0202b75 in vn_ioctl (fp=0xe4585910, com=3234097160, 
data=0xe51a6f88 "", ucred=0xc6787308,
     msg=0xe8482cf0) at /usr/src/sys/kern/vfs_vnops.c:938
#10 0xc01c3c1b in fo_ioctl (fd=3, com=3234097160,
     uspc_data=0xbfbff954 <Address 0xbfbff954 out of bounds>, map=0x0, 
msg=0xe8482cf0)
     at /usr/src/sys/sys/file2.h:88
#11 mapped_ioctl (fd=3, com=3234097160, uspc_data=0xbfbff954 <Address 
0xbfbff954 out of bounds>,
     map=0x0, msg=0xe8482cf0) at /usr/src/sys/kern/sys_generic.c:697
#12 0xc01c3ccb in sys_ioctl (uap=0xe8482cf0) at 
/usr/src/sys/kern/sys_generic.c:521
#13 0xc03088ea in syscall2 (frame=0xe8482d40) at 
/usr/src/sys/platform/pc32/i386/trap.c:1339
#14 0xc02f3356 in Xint0x80_syscall () at 
/usr/src/sys/platform/pc32/i386/exception.s:876

kernel+core nr. 13 on leaf:~corecode/crash

cheers
   simon



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