Date: Mon, 20 Aug 2001 12:27:24 +0100 From: "Walter C. Pelissero" <walter@pelissero.org> To: hackers@freebsd.org, net@freebsd.org Subject: 4.4-RC NFS panic Message-ID: <15232.62492.730149.447791@hyde.lpds.sublink.org>
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[ it seems my original article didn't get through ]
I recently upgraded to 4.4-RC.
Now my Vaio panics when I use NFS volumes (as client).
The panic is reproducible with a:
find /some/NFS/mount/point -type f -exec cat {} \; >/dev/null
Sometime I got a "page fault", sometime a "lockmgr: locking against myself"
Here is a kgdb session:
GNU gdb 4.18
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-unknown-freebsd".
Reading symbols from kernel.debug...done.
IdlePTD 3612672
initial pcb at 2bb8a0
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x33693d55
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc016dbdd
stack pointer = 0x10:0xc7834c58
frame pointer = 0x10:0xc7834c64
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 = 180 (nfsiod)
interrupt mask = net
trap number = 12
panic: page fault
syncing disks... 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
done
Uptime: 3m58s
dumping to dev #ad/0x30001, offset 272736
dump ata0: resetting devices .. done
127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
---
#0 dumpsys () at ../../kern/kern_shutdown.c:472
(kgdb) bt
#0 dumpsys () at ../../kern/kern_shutdown.c:472
#1 0xc015250f in boot (howto=256) at ../../kern/kern_shutdown.c:312
#2 0xc01528dc in poweroff_wait (junk=0xc027b66c, howto=-1071140465)
at ../../kern/kern_shutdown.c:580
#3 0xc023b4b2 in trap_fatal (frame=0xc7834c18, eva=862534997)
at ../../i386/i386/trap.c:956
#4 0xc023b185 in trap_pfault (frame=0xc7834c18, usermode=0, eva=862534997)
at ../../i386/i386/trap.c:849
#5 0xc023ad6f in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16,
tf_edi = 6684672, tf_esi = 862534981, tf_ebp = -947696540,
tf_isp = -947696572, tf_ebx = 862534981, tf_edx = 6684672,
tf_ecx = -1066162108, tf_eax = 6684672, tf_trapno = 12, tf_err = 0,
tf_eip = -1072243747, tf_cs = 8, tf_eflags = 66054,
tf_esp = -1066172160, tf_ss = -1066172160}) at ../../i386/i386/trap.c:448
#6 0xc016dbdd in m_freem (m=0x33693d45) at ../../kern/uipc_mbuf.c:618
#7 0xc016dbfc in m_freem (m=0xc0738a00) at ../../kern/uipc_mbuf.c:618
#8 0xc0b59652 in ?? ()
#9 0xc0b66b92 in ?? ()
#10 0xc0b3fe37 in ?? ()
#11 0xc0b606de in ?? ()
#12 0xc0b5f11b in ?? ()
#13 0xc023b75d in syscall2 (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
tf_edi = -1077936680, tf_esi = 0, tf_ebp = -1077936776,
tf_isp = -947695660, tf_ebx = 2, tf_edx = 1, tf_ecx = 19, tf_eax = 155,
tf_trapno = 12, tf_err = 2, tf_eip = 134515664, tf_cs = 31,
tf_eflags = 643, tf_esp = -1077936852, tf_ss = 47})
at ../../i386/i386/trap.c:1155
#14 0xc022fae5 in Xint0x80_syscall ()
#15 0x8048135 in ?? ()
(kgdb)
--
walter pelissero
http://www.pelissero.org
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