Date: Fri, 04 Dec 1998 08:47:39 +0100 From: sthaug@nethelp.no To: dg@root.com Cc: cdillon@wolves.k12.mo.us, jkh@zippy.cdrom.com, sgk@troutmask.apl.washington.edu, bford@uop.cs.uop.edu, freebsd-current@FreeBSD.ORG Subject: Re: panic: ffs_blkfree: bad size Message-ID: <27359.912757659@verdi.nethelp.no> In-Reply-To: Your message of "Thu, 03 Dec 1998 18:38:05 -0800" References: <199812040238.SAA27887@root.com>
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> >I posted a message a while back when this bug first started to bite. I
> >have a good coredump or two (using debugging kernel and all) if anyone
> >wants them. Kirk told me he would look at Greg's dump first and get
> >back to me if he needed more samples, but I haven't heard from him. I
> >can build a more recent world (mine is a couple weeks old now) and turn
> >on vfs.ffs.doreallocblks again to get a more recent dump. It occurrs
> >without having to do much work. My system has been rock solid ever
> >since I set vfs.ffs.doreallocblks=0 at boot, so it isn't hardware
> >instability like I thought it may have been.
>
> There was a bug found in the original code that has been fixed. What we're
> interested in now is continued problems *after* the bugfix (about Nov 18th).
As mentioned before, I get this panic on an 3.0-19981123-SNAP system
(vfs_cluster.c 1.74), SMP, no softupdates, with vfs.ffs.doreallocblks=1.
The panic happens during heavy disk *and* network activity.
If anybody wants backtraces or wants to play with the core dumps, they
can be made available (warning: the machine has 512 MB of memory, so the
core dump is rather big). I've sent a message to Kirk McKusick asking if
he wants any of this, but haven't received an answer.
Steinar Haug, Nethelp consulting, sthaug@nethelp.no
----------------------------------------------------------------------
#0 boot (howto=256) at ../../kern/kern_shutdown.c:285
#1 0xf0134b2e in panic (fmt=0xf01c5d81 "ffs_blkfree: bad size")
at ../../kern/kern_shutdown.c:446
#2 0xf01c5ede in ffs_blkfree (ip=0xf1569b00, bno=6442, size=8192)
at ../../ufs/ffs/ffs_alloc.c:1300
#3 0xf01c45a4 in ffs_reallocblks (ap=0xf95ffde4)
at ../../ufs/ffs/ffs_alloc.c:523
#4 0xf015216b in cluster_write (bp=0xf6496350, filesize=105562112)
at vnode_if.h:1035
#5 0xf01cba67 in ffs_write (ap=0xf95ffebc)
at ../../ufs/ufs/ufs_readwrite.c:368
#6 0xf015c14b in vn_write (fp=0xf15686c0, uio=0xf95fff40, cred=0xf1560280)
at vnode_if.h:331
#7 0xf013d803 in writev (p=0xf95a3840, uap=0xf95fff94)
at ../../kern/sys_generic.c:356
#8 0xf01f5d0b in syscall (frame={tf_es = 39, tf_ds = 39, tf_edi = 714452012,
tf_esi = 2553, tf_ebp = 714452172, tf_isp = -111149084, tf_ebx = 0,
tf_edx = 16, tf_ecx = 135401472, tf_eax = 121, tf_trapno = 12,
tf_err = 2, tf_eip = 135040412, tf_cs = 31, tf_eflags = 514,
tf_esp = 714451972, tf_ss = 39}) at ../../i386/i386/trap.c:1031
#9 0xf01e4e1c in Xint0x80_syscall ()
#10 0x809c311 in ?? ()
#11 0x809c2b6 in ?? ()
#12 0x807ce62 in ?? ()
#13 0x805cc46 in ?? ()
#14 0x805a882 in ?? ()
#15 0x8093da1 in ?? ()
#16 0x8093c61 in ?? ()
#17 0x80b063c in ?? ()
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