Crash during login on CURRENT system
Kevin Oberman
oberman at es.net
Fri Aug 1 12:11:12 PDT 2003
CURRENT system on an IBM T30 crashed in login
Since it was on my laptop, I need to hand-type this, so I hope to not
make any errors. I doubt that I can repeat it.
Fatal trap 12: page fault while in kernel mode
Fault virtual address = 0x304
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc033a1f0
stack pointer = 0x10:0xdbb519cc
frame pointer = 0x10:0xdbb51a14
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, rean 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 612 (login)
kernel: type 12 trap, code=0
Stopped at ufsdirhash_lookup+0x2e0: movl 0(%eax,%edx,4),%ebx
db> tr
ufsdirhash_lookup(c4858360,c41cc81a,e,c48583b0,ddb51a7c) at ufsdirhash_lookup+0x2e0
ufs_lookup(ddb51b3c,dbb51c78,c029bb81,ddb51b3c,ddb51c74) at ufs_lookup+0x1fb
ufs_vnoperate(ddb51b3c,ddb51c74,ddb51c88,c4844db0,c41a9390) at ufs_vnoperate+0x18
vfs_cache_lookup(dbb51bbc,dbb51bd8,c02a0e83,dbb51bbc,c41a9390) at vfs_cache_lookup+0x301
ufs_vnoperate(dbb51bbc,c41a9390,0,c41a9390,c41a9390) at ufs_vnoperate+0x18
lookup(dbb516c0,c41cc800,400,dbb51c7c,c41a9390) at lookup+0x302
namei(dbb51c60,c483e5d8,c41a9390,60,c41a9390) at namei+0x20b
kern_access(c41a9390,28072000,0,0,dbb51d40) at kern_access+0x56
access(c41a9390,dbb51d10,8,c,2) at access+0x29
syscall(2f,2f,bfbf002f,bfbff5e0,28072000) at syscall_0x2b0
Xint0x80_syscall() at Xint0x80_syscall+0x1d
---syscall (33, FreeBSD ELF32, access), eip = 0x28055647, esp = 0xbfbff57c, ebp = 0xbfbff5898 ---
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman at es.net Phone: +1 510 486-8634
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