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DragonFly kernel List (threaded) for 2004-05
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Re: Kernel panic doing du


From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Fri, 28 May 2004 23:18:48 -0700 (PDT)

:After cvsupping today (Sat May 29) and rebuilding a kernel, I'm seeing a 
:kernel panic when I do cd /usr; du. Going back to a kernel dated May 13
:lets du complete with no problems. Here are details; let me know if more 
:are required (it's my 1st dfly panic report).
:	Warren

    It's crashing in a loadable module somewhere.  What filesystem(s) are
    you using that are loadable?  If you compile the filesystem into the
    kernel the backtrace will be more meaningful. 

    There's another open bug report on a filesystem crunching, which I'll
    try to get to on Saturday.

    It's probably something stupid simple related to the recent DEV changes.

					-Matt
					Matthew Dillon 
					<dillon@xxxxxxxxxxxxx>

:IdlePTD at phsyical address 0x003f5000
:PCB @003493e0 EIP=c0177ed6 ESP=d118f958 EBP=d118f964
:initial pcb at physical address 0x003493e0
:panicstr: page fault
:panic messages:
:---
:Fatal trap 12: page fault while in kernel mode
:fault virtual address   = 0xc00b
:fault code              = supervisor read, page not present
:instruction pointer     = 0x8:0xd0f37cc2
:stack pointer           = 0x10:0xd118fa68
:frame pointer           = 0x10:0xd118fa98
:code segment            = base 0x0, limit 0xfffff, type 0x1b
:                         = DPL 0, pres 1, def32 1, gran 1
:processor eflags        = interrupt enabled, resume, IOPL = 0
:current process         = 670 (du)
:current thread          = pri 6
:interrupt mask          = none
:trap number             = 12
:panic: page fault
:
:(kgdb) where
:#0  dumpsys () at ../../kern/kern_shutdown.c:500
:#1  0xc0177ccb in boot (howto=256) at ../../kern/kern_shutdown.c:333
:#2  0xc01780fc in poweroff_wait (junk=0xc02f3a6a, howto=-1070648178)
:     at ../../kern/kern_shutdown.c:612
:#3  0xc02a1f31 in trap_fatal (frame=0xd118fa28, eva=49163)
:     at ../../i386/i386/trap.c:1092
:#4  0xc02a1b35 in trap_pfault (frame=0xd118fa28, usermode=0, eva=49163)
:     at ../../i386/i386/trap.c:981
:#5  0xc02a182c in trap (frame={tf_fs = -789381096, tf_es = -785776624,
:       tf_ds = -785776624, tf_edi = -786892000, tf_esi = -1070534144,
:       tf_ebp = -786892136, tf_isp = -786892204, tf_ebx = -786892096,
:       tf_edx = -786892112, tf_ecx = -1057352352, tf_eax = 49047,
:       tf_trapno = 12, tf_err = 0, tf_eip = -789349182, tf_cs = 8,
:       tf_eflags = 66199, tf_esp = -786892096, tf_ss = -786891944})
:     at ../../i386/i386/trap.c:561
:#6  0xd0f37cc2 in ?? ()
:#7  0xc01b55f3 in vn_stat (vp=0xd12a71c0, sb=0xd118fb58, td=0xc672af40)
:     at vnode_if.h:354
:#8  0xc01b1c65 in kern_stat (nd=0xd118fbb8, st=0xd118fb58)
:     at ../../kern/vfs_syscalls.c:1610
:#9  0xc01b1d72 in lstat (uap=0xd118fc40) at ../../kern/vfs_syscalls.c:1655
:#10 0xc02a224e in syscall2 (frame={tf_fs = 134545455, tf_es = 47,
:       tf_ds = -1078001617, tf_edi = 134546944, tf_esi = 134547016,
:       tf_ebp = -1077939088, tf_isp = -786891404, tf_ebx = 672151436,
:       tf_edx = 134533120, tf_ecx = 0, tf_eax = 190, tf_trapno = 12,
:       tf_err = 2, tf_eip = 671839796, tf_cs = 31, tf_eflags = 663,
:       tf_esp = -1077939228, tf_ss = 47}) at ../../i386/i386/trap.c:1297
:#11 0xc029188a in Xint0x80_syscall ()
:
:P.S I did boot -s; fsck (no -p); mount -a, multi-user mode, login, cd 
:/usr; du, so I don't think the filesystems were corrupt.
:




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