[Bug 236383] Kernel panic

Fri Mar 8 07:40:18 UTC 2019

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236383

            Bug ID: 236383
           Summary: Kernel panic
           Product: Base System
           Version: 12.0-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: admin at 5034.ru

Hi All,

12.0-STABLE FreeBSD 12.0-STABLE #2 r343904M

Strange panic, me don't know how to reproduce:

# kgdb /boot/kernel/kernel /var/crash/vmcore.last
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Reading symbols from /boot/kernel/kernel...Reading symbols from
/usr/lib/debug//boot/kernel/kernel.debug...done.
done.

Unread portion of the kernel message buffer:

Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address   = 0xb10
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff809019d2
stack pointer           = 0x28:0xfffffe0000464a70
frame pointer           = 0x28:0xfffffe0000464aa0
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 12 (irq22: ral0)
trap number             = 12
panic: page fault
cpuid = 1
time = 1552029335
KDB: stack backtrace:
#0 0xffffffff80c531c7 at kdb_backtrace+0x67
#1 0xffffffff80c07143 at vpanic+0x1a3
#2 0xffffffff80c06f93 at panic+0x43
#3 0xffffffff8118d9ff at trap_fatal+0x35f
#4 0xffffffff8118da59 at trap_pfault+0x49
#5 0xffffffff8118d07e at trap+0x29e
#6 0xffffffff81168af5 at calltrap+0x8
#7 0xffffffff80901693 at rt2860_intr+0x803
#8 0xffffffff80bca024 at ithread_loop+0x1d4
#9 0xffffffff80bc6f23 at fork_exit+0x83
#10 0xffffffff81169aee at fork_trampoline+0xe
Uptime: 22h14m9s
Dumping 962 out of 8077 MB:..2%..12%..22%..32%..42%..52%..62%..72%..82%..92%

__curthread () at ./machine/pcpu.h:230
230             __asm("movq %%gs:%P1,%0" : "=r" (td) : "n"
(OFFSETOF_CURTHREAD));
(kgdb) bt
#0  __curthread () at ./machine/pcpu.h:230
#1  doadump (textdump=<optimized out>) at /usr/src/sys/kern/kern_shutdown.c:366
#2  0xffffffff80c06d2b in kern_reboot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:446
#3  0xffffffff80c071a3 in vpanic (fmt=<optimized out>, ap=0xfffffe00004647c0)
at /usr/src/sys/kern/kern_shutdown.c:872
#4  0xffffffff80c06f93 in panic (fmt=<unavailable>) at
/usr/src/sys/kern/kern_shutdown.c:799
#5  0xffffffff8118d9ff in trap_fatal (frame=0xfffffe00004649b0, eva=2832) at
/usr/src/sys/amd64/amd64/trap.c:929
#6  0xffffffff8118da59 in trap_pfault (frame=0xfffffe00004649b0, usermode=0) at
/usr/src/sys/amd64/amd64/trap.c:765
#7  0xffffffff8118d07e in trap (frame=0xfffffe00004649b0) at
/usr/src/sys/amd64/amd64/trap.c:441
#8  <signal handler called>
#9  ieee80211_ratectl_tx_complete (ni=<optimized out>, status=<optimized out>)
at /usr/src/sys/net80211/ieee80211_ratectl.h:143
#10 rt2860_drain_stats_fifo (sc=0xfffffe004ab76000) at
/usr/src/sys/dev/ral/rt2860.c:1122
#11 0xffffffff80901693 in rt2860_intr (arg=0xfffffe004ab76000) at
/usr/src/sys/dev/ral/rt2860.c:1417
#12 0xffffffff80bca024 in intr_event_execute_handlers (p=<optimized out>,
ie=<optimized out>) at /usr/src/sys/kern/kern_intr.c:1119
#13 ithread_execute_handlers (p=<optimized out>, ie=<optimized out>) at
/usr/src/sys/kern/kern_intr.c:1132
#14 ithread_loop (arg=<optimized out>) at /usr/src/sys/kern/kern_intr.c:1212
#15 0xffffffff80bc6f23 in fork_exit (callout=0xffffffff80bc9e50 <ithread_loop>,
arg=0xfffff80003652940, frame=0xfffffe0000464c00) at
/usr/src/sys/kern/kern_fork.c:1059
#16 <signal handler called>
(kgdb) frame 9
#9  ieee80211_ratectl_tx_complete (ni=<optimized out>, status=<optimized out>)
at /usr/src/sys/net80211/ieee80211_ratectl.h:143
143             vap->iv_rate->ir_tx_complete(ni, status);
(kgdb) frame 10
#10 rt2860_drain_stats_fifo (sc=0xfffffe004ab76000) at
/usr/src/sys/dev/ral/rt2860.c:1122
1122                            ieee80211_ratectl_tx_complete(ni, txs);
(kgdb) frame 11
#11 0xffffffff80901693 in rt2860_intr (arg=0xfffffe004ab76000) at
/usr/src/sys/dev/ral/rt2860.c:1417
1417                    rt2860_drain_stats_fifo(sc);
(kgdb) frame 12
#12 0xffffffff80bca024 in intr_event_execute_handlers (p=<optimized out>,
ie=<optimized out>) at /usr/src/sys/kern/kern_intr.c:1119
1119                    ih->ih_handler(ih->ih_argument);
(kgdb)

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