[Bug 191882] Multiple panics when ctld is running

Tue Jul 15 18:10:40 UTC 2014

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=191882

--- Comment #1 from Steven Peterson <scp at mainstream.net> ---
Sample of General Protection Fault Panic:

plfs.pl.mainstream.net dumped core - see /var/crash/vmcore.4

Tue Jul 15 14:07:00 EDT 2014

FreeBSD plfs.pl.mainstream.net 10.0-RELEASE-p6 FreeBSD 10.0-RELEASE-p6 #0
r268165: Tue Jul 15 13:15:23 EDT 2014    
root at plfs.pl.mainstream.net:/usr/obj/usr/src/sys/PLFS  amd64

panic: general protection fault

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Unread portion of the kernel message buffer:
kernel trap 9 with interrupts disabled

Fatal trap 9: general protection fault while in kernel mode
cpuid = 0; apic id = 00
instruction pointer     = 0x20:0xffffffff808c4593
stack pointer           = 0x28:0xfffffe0838f936e0
frame pointer           = 0x28:0xfffffe0838f93770
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        = resume, IOPL = 0
current process         = 11 (idle: cpu0)
trap number             = 9
panic: general protection fault
cpuid = 0
KDB: stack backtrace:
#0 0xffffffff808e7ce0 at kdb_backtrace+0x60
#1 0xffffffff808af7c5 at panic+0x155
#2 0xffffffff80c8de32 at trap_fatal+0x3a2
#3 0xffffffff80c8da6f at trap+0x7bf
#4 0xffffffff80c74b32 at calltrap+0x8
#5 0xffffffff80d64e40 at handleevents+0x180
#6 0xffffffff80d65768 at timercb+0x308
#7 0xffffffff80d8fe0c at lapic_handle_timer+0x9c
#8 0xffffffff80c7568c at Xtimerint+0x8c
#9 0xffffffff80359cc7 at acpi_cpu_idle+0x137
#10 0xffffffff80c78dff at cpu_idle_acpi+0x3f
#11 0xffffffff80c78ea3 at cpu_idle+0x93
#12 0xffffffff808d897e at sched_idletd+0x1ee
#13 0xffffffff8088189a at fork_exit+0x9a
#14 0xffffffff80c7506e at fork_trampoline+0xe
Uptime: 1m12s
Dumping 1436 out of 32645 MB:..2%..11%..21%..31%..41%..51%..61%..71%..81%..91%

Reading symbols from /boot/kernel/nullfs.ko.symbols...done.
Loaded symbols for /boot/kernel/nullfs.ko.symbols
Reading symbols from /boot/kernel/zfs.ko.symbols...done.
Loaded symbols for /boot/kernel/zfs.ko.symbols
Reading symbols from /boot/kernel/opensolaris.ko.symbols...done.
Loaded symbols for /boot/kernel/opensolaris.ko.symbols
Reading symbols from /boot/kernel/geom_linux_lvm.ko.symbols...done.
Loaded symbols for /boot/kernel/geom_linux_lvm.ko.symbols
Reading symbols from /boot/kernel/uhid.ko.symbols...done.
Loaded symbols for /boot/kernel/uhid.ko.symbols
Reading symbols from /boot/kernel/ctl.ko.symbols...done.
Loaded symbols for /boot/kernel/ctl.ko.symbols
Reading symbols from /boot/kernel/iscsi.ko.symbols...done.
Loaded symbols for /boot/kernel/iscsi.ko.symbols
Reading symbols from /boot/kernel/kgssapi_krb5.ko.symbols...done.
Loaded symbols for /boot/kernel/kgssapi_krb5.ko.symbols
Reading symbols from /boot/kernel/kgssapi.ko.symbols...done.
Loaded symbols for /boot/kernel/kgssapi.ko.symbols
Reading symbols from /boot/kernel/crypto.ko.symbols...done.
Loaded symbols for /boot/kernel/crypto.ko.symbols
Reading symbols from /boot/kernel/rc4.ko.symbols...done.
Loaded symbols for /boot/kernel/rc4.ko.symbols
Reading symbols from /boot/kernel/nfsserver.ko.symbols...done.
Loaded symbols for /boot/kernel/nfsserver.ko.symbols
Reading symbols from /boot/kernel/nfs_common.ko.symbols...done.
Loaded symbols for /boot/kernel/nfs_common.ko.symbols
#0  doadump (textdump=<value optimized out>) at pcpu.h:219
219     pcpu.h: No such file or directory.
        in pcpu.h
(kgdb) #0  doadump (textdump=<value optimized out>) at pcpu.h:219
#1  0xffffffff808af440 in kern_reboot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:447
#2  0xffffffff808af804 in panic (fmt=<value optimized out>)
    at /usr/src/sys/kern/kern_shutdown.c:754
#3  0xffffffff80c8de32 in trap_fatal (frame=<value optimized out>, 
    eva=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:882
#4  0xffffffff80c8da6f in trap (frame=<value optimized out>)
    at /usr/src/sys/amd64/amd64/trap.c:224
#5  0xffffffff80c74b32 in calltrap ()
    at /usr/src/sys/amd64/amd64/exception.S:232
#6  0xffffffff808c4593 in callout_process (now=309634963277)
    at /usr/src/sys/kern/kern_timeout.c:458
#7  0xffffffff80d64e40 in handleevents (now=309634963277, fake=0)
    at /usr/src/sys/kern/kern_clocksource.c:222
#8  0xffffffff80d65768 in timercb (et=<value optimized out>, 
    arg=<value optimized out>) at /usr/src/sys/kern/kern_clocksource.c:365
#9  0xffffffff80d8fe0c in lapic_handle_timer (frame=0xfffffe0838f93870)
    at /usr/src/sys/x86/x86/local_apic.c:816
#10 0xffffffff80c7568c in Xtimerint () at apic_vector.S:109
#11 0xffffffff80c721b6 in acpi_cpu_c1 ()
    at /usr/src/sys/amd64/acpica/acpi_machdep.c:95
#12 0xffffffff80359cc7 in acpi_cpu_idle (sbt=<value optimized out>)
    at /usr/src/sys/dev/acpica/acpi_cpu.c:1026
#13 0xffffffff80c78dff in cpu_idle_acpi (sbt=106894436)
    at /usr/src/sys/amd64/amd64/machdep.c:680
#14 0xffffffff80c78ea3 in cpu_idle (busy=0)
    at /usr/src/sys/amd64/amd64/machdep.c:835
#15 0xffffffff808d897e in sched_idletd (dummy=<value optimized out>)
    at /usr/src/sys/kern/sched_ule.c:2673
#16 0xffffffff8088189a in fork_exit (
    callout=0xffffffff808d8790 <sched_idletd>, arg=0x0, 
    frame=0xfffffe0838f93ac0) at /usr/src/sys/kern/kern_fork.c:995
#17 0xffffffff80c7506e in fork_trampoline ()
    at /usr/src/sys/amd64/amd64/exception.S:606
#18 0x0000000000000000 in ?? ()
Current language:  auto; currently minimal
(kgdb)

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