Date: Sat, 17 Aug 2002 05:20:03 -0700 (PDT) From: "Tha KreAture" <Tha_KreAture@hotmail.com> To: freebsd-bugs@FreeBSD.org Subject: Re: i386/41723: Copying files to filesystem causes "integer divide fault" and panic. Message-ID: <200208171220.g7HCK3Ld041166@freefall.freebsd.org>
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The following reply was made to PR i386/41723; it has been noted by GNATS.
From: "Tha KreAture" <Tha_KreAture@hotmail.com>
To: <freebsd-gnats-submit@FreeBSD.org>, <kreature@c2i.net>
Cc:
Subject: Re: i386/41723: Copying files to filesystem causes "integer divide fault" and panic.
Date: Sat, 17 Aug 2002 14:15:46 +0200
OK. I did a recompile of my kernel and added dumping...
Here's the output of the backtrace:
---------------------------
(kgdb) bt
#0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
#1 0xc0165adc in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:316
#2 0xc0165f10 in poweroff_wait (junk=0xc029980c, howto=-1071017206)
at /usr/src/sys/kern/kern_shutdown.c:595
#3 0xc0261e27 in trap_fatal (frame=0xd0936c4c, eva=0)
at /usr/src/sys/i386/i386/trap.c:974
#4 0xc0261803 in trap (frame={tf_fs = 16, tf_es = -795672560,
tf_ds = -1051328496, tf_edi = -795644108, tf_esi = 0,
tf_ebp = -795644740, tf_isp = -795644808, tf_ebx = -1051308032,
tf_edx = -1, tf_ecx = -1310720000, tf_eax = -1310720000, tf_trapno =
18,
tf_err = 0, tf_eip = -1071541209, tf_cs = 8, tf_eflags = 66182,
tf_esp = -1050202880, tf_ss = -1051308032})
at /usr/src/sys/i386/i386/trap.c:636
#5 0xc0219427 in ffs_dirpref (pip=0xc1672d00)
at /usr/src/sys/ufs/ffs/ffs_alloc.c:710
#6 0xc021911d in ffs_valloc (pvp=0xd094f540, mode=16877, cred=0xc167de80,
vpp=0xd0936d10) at /usr/src/sys/ufs/ffs/ffs_alloc.c:590
#7 0xc022b50d in ufs_mkdir (ap=0xd0936e78)
at /usr/src/sys/ufs/ufs/ufs_vnops.c:1321
#8 0xc022c6a1 in ufs_vnoperate (ap=0xd0936e78)
at /usr/src/sys/ufs/ufs/ufs_vnops.c:2422
#9 0xc01995ce in mkdir (p=0xcf2590c0, uap=0xd0936f80) at vnode_if.h:674
#10 0xc026208d in syscall2 (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
--------------------
#5 is interesting...
The funky stuff is happening at line 710 in sourcefile ffs_alloc.c wich, if
I have read correctly, is trying to find/select a inode for a directory or
file or something...
So, this line is causing me all theese problems: "maxcontigdirs =
min(cgsize / dirsize, 255);"
It appears the crash happens when a directory is made or a file is being
placed...
Hoping someone experienced with the code could check this? I am certain I
traced this right :-)
Kyrre
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