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Date:      Thu, 12 Apr 2007 14:01:25 +0400
From:      "Andrey V. Elsukov" <bu7cher@yandex.ru>
To:        freebsd-current@freebsd.org, Pawel Jakub Dawidek <pjd@FreeBSD.org>, Kris Kennaway <kris@obsecurity.org>
Subject:   ZFS: panic on kldunload
Message-ID:  <461E0375.7080002@yandex.ru>

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Hi, All.

I have recently CURRENT on the IBM x3650 server.

FreeBSD 7.0-CURRENT #0: Sat Jan  6 12:12:26 MSK 2007
     butcher@zfs-storage:/usr/obj/usr/src/sys/ZFS
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(TM) CPU 3.00GHz (3000.13-MHz 686-class CPU)
   Cores per package: 2
   Logical CPUs per core: 2
real memory  = 3221008384 (3071 MB)
avail memory = 3150757888 (3004 MB)
ACPI APIC Table: <IBM    SERVALNT>
FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs
  cpu0 (BSP): APIC ID:  0
  cpu1 (AP): APIC ID:  1
  cpu2 (AP): APIC ID:  2
  cpu3 (AP): APIC ID:  3
  cpu4 (AP): APIC ID:  4
  cpu5 (AP): APIC ID:  5
  cpu6 (AP): APIC ID:  6
  cpu7 (AP): APIC ID:  7
....
acd0: CDRW <UJDA770 DVD/CDRW/1.20> at ata1-master UDMA33
aacd0: <Volume> on aac0
aacd0: 69890MB (143134720 sectors)
aacd1: <Volume> on aac0
aacd1: 69890MB (143134720 sectors)
aacd2: <Volume> on aac0
aacd2: 69890MB (143134720 sectors)
aacd3: <Volume> on aac0
aacd3: 69890MB (143134720 sectors)

I can't use ZFS on this server. Any manipulation with zpool or zfs
brings to panic. Any suggestion?

-- 
WBR, Andrey V. Elsukov

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Unread portion of the kernel message buffer:


Fatal trap 12: page fault while in kernel mode
cpuid = 3; apic id = 03
fault virtual address	= 0x20
fault code		= supervisor read, page not present
instruction pointer	= 0x20:0xc6570b07
stack pointer	        = 0x28:0xecdc4bf8
frame pointer	        = 0x28:0xecdc4bfc
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		= 1017 (kldunload)
trap number		= 12
panic: page fault
cpuid = 3
Syncing disks, buffers remaining... 2283 
Syncing disks, vnodes remaining...0 2283 2283 2283 2283 2283 2283 0 2283 2283 2283 0 2283 2283 0 2283 2283 0 2283 0 2283 0 2283 2283 0 2283 0 2283 0 
Giving up on 2283 buffers
0 Uptime: 20m8s
Physical memory: 3063 MB
Dumping 120 MB: 105 89 73 57 41 25 9

#0  doadump () at pcpu.h:172
	in pcpu.h
(kgdb) add-symbol-file /boot/kernel/acpi.ko.symbols 0xc0b894b8 -s .data 0xc0bc0040 -s .bss 0xc0bc2820
add symbol table from file "/boot/kernel/acpi.ko.symbols" at
	.text_addr = 0xc0b894b8
	.data_addr = 0xc0bc0040
	.bss_addr = 0xc0bc2820
(y or n) Reading symbols from /boot/kernel/acpi.ko.symbols...done.
(kgdb) add-symbol-file /boot/kernel/zfs.ko.symbols 0xc656d9d0 -s .data 0xc65db340 -s .bss 0xc65ddac0
add symbol table from file "/boot/kernel/zfs.ko.symbols" at
	.text_addr = 0xc656d9d0
	.data_addr = 0xc65db340
	.bss_addr = 0xc65ddac0
(y or n) Reading symbols from /boot/kernel/zfs.ko.symbols...done.
(kgdb) bt full
#0  doadump () at pcpu.h:172
No locals.
#1  0xc06c0b20 in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:409
	first_buf_printf = 0
#2  0xc06c0e2a in panic (fmt=0xc09038b4 "%s") at /usr/src/sys/kern/kern_shutdown.c:563
	td = (struct thread *) 0xc64a61b0
	bootopt = 256
	newpanic = 1
	ap = 0xecdc4ad8 "ÉÜ\226À"
	buf = "page fault", '\0' <repeats 245 times>
#3  0xc08bafa2 in trap_fatal (frame=0xecdc4bb8, eva=32) at /usr/src/sys/i386/i386/trap.c:876
	code = 0
	type = 12
	ss = 40
	esp = 0
	softseg = {ssd_base = 0, ssd_limit = 1048575, ssd_type = 27, ssd_dpl = 0, ssd_p = 1, ssd_xx = 2, ssd_xx1 = 0, ssd_def32 = 1, ssd_gran = 1}
	msg = 0x0
#4  0xc08bac9b in trap_pfault (frame=0xecdc4bb8, usermode=0, eva=32) at /usr/src/sys/i386/i386/trap.c:785
	va = 0
	vm = (struct vmspace *) 0x0
	map = 0xc67f81d0
	rv = 1
	ftype = 1 '\001'
	td = (struct thread *) 0xc64a61b0
	p = (struct proc *) 0xc64a8240
#5  0xc08ba8e2 in trap (frame=0xecdc4bb8) at /usr/src/sys/i386/i386/trap.c:462
	td = (struct thread *) 0xc64a61b0
	p = (struct proc *) 0xc64a8240
	i = 0
	ucode = 0
	type = 12
	code = 0
	addr = -321106952
	eva = 32
	ksi = {ksi_link = {tqe_next = 0xc06e22e8, tqe_prev = 0xc6805000}, ksi_info = {si_signo = -1063143040, si_errno = 6, si_code = 0, 
    si_pid = 536871841, si_uid = 0, si_status = 0, si_addr = 0x0, si_value = {sival_int = 0, sival_ptr = 0x0}, _reason = {_fault = {_trapno = 0}, _timer = {
        _timerid = 0, _overrun = 0}, _mesgq = {_mqd = 0}, _poll = {_band = 0}, __spare__ = {__spare1__ = 0, __spare2__ = {0, 0, 0, 0, 0, 0, 0}}}}, 
  ksi_flags = 0, ksi_sigq = 0x0}
#6  0xc08a535b in calltrap () at /usr/src/sys/i386/i386/exception.s:139
No locals.
#7  0xc6570b07 in kmem_cache_destroy (cache=0x0) at /usr/src/sys/modules/zfs/../../compat/opensolaris/kern/opensolaris_kmem.c:169
No locals.
#8  0xc65bbef6 in zil_fini () at /usr/src/sys/modules/zfs/../../contrib/opensolaris/uts/common/fs/zfs/zil.c:1181
No locals.
#9  0xc65a5f29 in spa_fini () at /usr/src/sys/modules/zfs/../../contrib/opensolaris/uts/common/fs/zfs/spa_misc.c:1119
No locals.
#10 0xc65c6a55 in zfs_modevent (mod=0xc62a2e80, type=-968203856, unused=0x0)
    at /usr/src/sys/modules/zfs/../../contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c:1798
	error = -968204031
#11 0xc06b7b36 in module_unload (mod=0xc62a2e80, flags=0) at /usr/src/sys/kern/kern_module.c:244
	error = 0
#12 0xc06b2245 in linker_file_unload (file=0xc6307400, flags=0) at /usr/src/sys/kern/kern_linker.c:594
	mod = 0xc62a2e80
	next = 0xc62a2e40
	ml = 0x1
	nextml = 0xc62a2e80
	cp = (struct common_symbol *) 0xc64a61b0
	error = -968204031
	i = -970314112
#13 0xc06b2b0f in kern_kldunload (td=0xc6307400, fileid=3, flags=0) at /usr/src/sys/kern/kern_linker.c:942
	lf = 0xc6307400
	error = 2
#14 0xc06b2b6e in kldunloadf (td=0xc64a61b0, uap=0xc64a61b0) at /usr/src/sys/kern/kern_linker.c:971
No locals.
#15 0xc08bb26a in syscall (frame=0xecdc4d38) at /usr/src/sys/i386/i386/trap.c:1016
	params = 0xbfbfe7f0 <Address 0xbfbfe7f0 out of bounds>
	callp = (struct sysent *) 0xc09ed360
	td = (struct thread *) 0xc64a61b0
	p = (struct proc *) 0xc64a8240
	orig_tf_eflags = 658
	error = 0
	narg = 2
	args = {3, 0, 0, 4096, -1, 0, 0, 0}
	code = 444
	ksi = {ksi_link = {tqe_next = 0xc64a61b0, tqe_prev = 0xecdc4d38}, ksi_info = {si_signo = 671877032, si_errno = 671877032, si_code = 0, si_pid = 0, 
    si_uid = 3326771776, si_status = -968203856, si_addr = 0xc0947430, si_value = {sival_int = 145, sival_ptr = 0x91}, _reason = {_fault = {
        _trapno = -1062796988}, _timer = {_timerid = -1062796988, _overrun = -321106708}, _mesgq = {_mqd = -1062796988}, _poll = {_band = -1062796988}, 
      __spare__ = {__spare1__ = -1062796988, __spare2__ = {-321106708, -1064647127, 671543576, 3, -1077942248, -1064675009, -321106696}}}}, 
  ksi_flags = -321126392, ksi_sigq = 0xc06a0028}
#16 0xc08a53c0 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:196
No locals.
#17 0x00000033 in ?? ()
No symbol table info available.
(kgdb) 
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