kern/40957: ffs panic

[kefren%ngnetworks.ro@localhost]

>Number:         40957
>Category:       kern
>Synopsis:       ffs panic during remove
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Mar 04 08:55:00 +0000 2009
>Originator:     Mihai Chelaru
>Release:        NetBSD 5.99.7
>Organization:
        
>Environment:
        
        
System: NetBSD kefren.netbsd.ro 5.99.7 NetBSD 5.99.7 (Home) #16: Sat Feb 28 
19:42:18 EET 2009 
root%kefren.netbsd.ro@localhost:/disk2/work/src/sys/arch/amd64/compile/obj/Home 
amd64
Architecture: x86_64
Machine: amd64
>Description:
        During a recursive remove system panic'd. After reboot, during log 
replaying it panic'd again in the same point.
        Situation continued until I fsck'ed the fs and mount it once without 
log.

        dev = 0x4, block = 469, fs = /disk2
        panic: blkfree: freeing free block
...
        stopped in pid 1611.1 (mc) at netbsd: breakpoint+5: leave

        Initial traceback:
                breakpoint + 5
                panic + 585
                ffs_blkfree_common + 717
                ffs_blkfree + 402
                ffs_indirtrunc + 963
                ffs_indirtrunc + 761
                ffs_truncate + 2634
                ufs_inactive + 581
                VOP_INACTIVE + 101
                vrelel + 221
                ufs_remove + 208
                VOP_REMOVE + 105
                do_sys_unlink + 369
                syscall + 182

        Replaying log traceback is mostly similar:
                breakpoint + 5
                panic + 585
                ffs_blkfree_common + 717
                ffs_blkfree + 402
                ffs_indirtrunc + 963
                ffs_indirtrunc + 761
                ffs_truncate + 2634
                ufs_inactive + 581
                VOP_INACTIVE + 101
                vrelel + 221
                ffs_wapbl_replay_finish + 165
                ffs_wapbl_start + 102
                ffs_mountfs + 2255
                ffs_mount + 850
                VFS_MOUNT + 68
                do_sys_mount + 1546
                sys___mount50 + 51
                syscall + 182




>How-To-Repeat:
        
>Fix:
        

>Unformatted: