Re: Kernel panic during portupdrade [ffs_blkfree: freeing free block]

In message: <7mbryohhhy.wl_at_black.imgsrc.co.jp>
            Jun Kuriyama <kuriyama_at_imgsrc.co.jp> writes:
: At Sun, 27 Apr 2003 22:28:26 +0000 (UTC),
: Lars Eggert wrote:
: > I see somthing similar and have a core dump. Below is a backtrace. This 
: > did not happen with a 4/17 kernel, by the way. Please let me know if 
: > there is any other information I can provide.
: 
: I got same panic with latest (2003-04-30) kernel.
: 
: dev = ad0s1e, block = 3202160, fs = /usr
: panic: ffs_blkfree: freeing free block
: cpuid = 0; lapic.id = 00000000
: Debugger("panic")
: Stopped at      Debugger+0x55:  xchgl   %ebx,in_Debugger.0
: db> trace
: Debugger(c03f15f7,0,c0404e4e,e6cf3acc,1) at Debugger+0x55
: panic(c0404e4e,c7e7c690,30dc70,0,c7e6a8d4) at panic+0x11f
: ffs_blkfree(c7e6a800,c7eecdb0,30dc70,0,4000) at ffs_blkfree+0x4da
: indir_trunc(c963f300,c35ec0,0,0,c) at indir_trunc+0x32f
: handle_workitem_freeblocks(c963f300,0,2,c7e8a7e8,c7e67600) at handle_workitem_fr
: eeblocks+0x225
: process_worklist_item(0,0,3eaf2b1f,0,b8) at process_worklist_item+0x20a
: softdep_process_worklist(0,0,c03f6f66,6d7,0) at softdep_process_worklist+0xc0
: sched_sync(0,e6cf3d48,c03ef34f,313,0) at sched_sync+0x2ee
: fork_exit(c0287680,0,e6cf3d48) at fork_exit+0xc0
: fork_trampoline() at fork_trampoline+0x1a

I've been getting this for the past few days.  I've only been able to
get one or two good tracebacks because usually I get a panic in the
dump code about KSE object not on run queue :-(

Warner