Date: Sun, 25 May 1997 11:27:11 -0700 (PDT) From: cschuber@uumail.gov.bc.ca To: freebsd-gnats-submit@FreeBSD.ORG Subject: kern/3685: panic: fdesc attr Message-ID: <199705251827.LAA02304@hub.freebsd.org> Resent-Message-ID: <199705251830.LAA02467@hub.freebsd.org>
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>Number: 3685
>Category: kern
>Synopsis: panic: fdesc attr
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun May 25 11:30:01 PDT 1997
>Last-Modified:
>Originator: Cy Schubert
>Organization:
ITSD Province of BC
>Release: FreeBSD 2.2.1-RELEASE i386
>Environment:
FreeBSD cwsys 2.2.1-RELEASE FreeBSD 2.2.1-RELEASE #0: Sun May 25 10:06:48 PDT 1997 root@cwsys:/opt/usr_src/sys/compile/CWSYS i386
>Description:
find / -type d -perm 777 | xargs ls -ld causes,
panic: fdesc attr
KGDB session follows:
(kgdb) symbol-file /kernel
Reading symbols from /kernel...done.
(kgdb) exec-file /var/crash/kernel.1
(kgdb) core-file /var/crash/vmcore.1
IdlePTD 1f5000
current pcb at 1d9ae0
panic: fdesc attr
#0 boot (howto=256) at ../../kern/kern_shutdown.c:243
243 dumppcb.pcb_cr3 = rcr3();
(kgdb) bt
#0 boot (howto=256) at ../../kern/kern_shutdown.c:243
#1 0xf010de52 in panic (fmt=0xf0131756 "fdesc attr")
#1 0xf010de52 in panic (fmt=0xf0131756 "fdesc attr")
at ../../kern/kern_shutdown.c:367
#2 0xf01318fa in fdesc_attr (fd=1, vap=0xefbffdd0, cred=0xf1347780,
p=0xf1269400) at ../../miscfs/fdesc/fdesc_vnops.c:436
#3 0xf0131a7e in fdesc_getattr (ap=0xefbffdbc)
at ../../miscfs/fdesc/fdesc_vnops.c:504
#4 0xf01309bc in vn_stat (vp=0xf139f400, sb=0xefbffef8, p=0xf1269400)
at vnode_if.h:199
#5 0xf012eada in lstat (p=0xf1269400, uap=0xefbfff94, retval=0xefbfff84)
at ../../kern/vfs_syscalls.c:1346
#6 0xf01b11d3 in syscall (frame={tf_es = 39, tf_ds = 39, tf_edi = 42752,
tf_esi = 42820, tf_ebp = -272639204, tf_isp = -272629788,
tf_ebx = 134713440, tf_edx = 42816, tf_ecx = 32768, tf_eax = 190,
tf_trapno = 7, tf_err = 7, tf_eip = 134497889, tf_cs = 31,
tf_eflags = 582, tf_esp = -272639332, tf_ss = 39})
at ../../i386/i386/trap.c:890
#7 0x8044661 in ?? ()
#8 0x8039c4d in ?? ()
#9 0x80395ca in ?? ()
#10 0x1673 in ?? ()
#11 0x31c2 in ?? ()
tf_ebx = 134713440, tf_edx = 42816, tf_ecx = 32768, tf_eax = 190,
tf_trapno = 7, tf_err = 7, tf_eip = 134497889, tf_cs = 31,
tf_eflags = 582, tf_esp = -272639332, tf_ss = 39})
at ../../i386/i386/trap.c:890
#7 0x8044661 in ?? ()
#8 0x8039c4d in ?? ()
Looking at the arguments passed to lstat() as saved in stack frame #5,
uap->path points to a null terminated string containing "1", which was
the name of any file found by find. The filename /tmp/.X11-unix does
have a "1" in it.
>How-To-Repeat:
find / -type d -perm 777 | xargs ls -ld -- or --
find / -type d -perm 777 | xargs ls -l
>Fix:
No fix is available.
Circumvention is:
find / -type d -perm 777 >/tmp/foobar
xargs ls -ld </tmp/foobar
>Audit-Trail:
>Unformatted:
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