https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=210801
Bug ID: 210801
Summary: [panic] Fatral trap 12: page fault while in kernel
mode (new in 11.0-ALPHA6 from 11.0-ALPHA3)
Product: Base System
Version: 11.0-CURRENT
Hardware: Any
OS: Any
Status: New
Keywords: regression
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Possible regression between ALPHA3 and ALPHA6. It's happened randomly while
doing some Poudriere runs and going back and forth at the console testing
ports. Sadly I do not have a replication case just yet but have had two
panics since updating Friday.
- Before
FreeBSD 11.0-ALPHA3 #0 r301817M: Sat Jun 11 08:34:23 UTC 2016
- After
FreeBSD 11.0-ALPHA6 #0 r302303M: Fri Jul 1 04:55:24 UTC 2016
- Changes for the 'M'
M share/man/man4/coretemp.4
M sys/dev/coretemp/coretemp.c
- Excerpt from core:
...
#0 doadump (textdump=0) at pcpu.h:221
221 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) #0 doadump (textdump=0) at pcpu.h:221
#1 0xffffffff8039beab in db_dump (dummy=<value optimized out>, dummy2=false,
dummy3=0, dummy4=0x0) at /usr/src/head/sys/ddb/db_command.c:533
#2 0xffffffff8039bca9 in db_command (cmd_table=<value optimized out>)
at /usr/src/head/sys/ddb/db_command.c:440
#3 0xffffffff8039ba04 in db_command_loop ()
at /usr/src/head/sys/ddb/db_command.c:493
#4 0xffffffff8039e9eb in db_trap (type=<value optimized out>,
code=<value optimized out>) at /usr/src/head/sys/ddb/db_main.c:251
#5 0xffffffff80b323d3 in kdb_trap (type=<value optimized out>,
code=<value optimized out>, tf=<value optimized out>)
at /usr/src/head/sys/kern/subr_kdb.c:654
#6 0xffffffff80fd52d1 in trap_fatal (frame=0xfffffe0469f087e0, eva=1036)
at /usr/src/head/sys/amd64/amd64/trap.c:836
#7 0xffffffff80fd5503 in trap_pfault (frame=0xfffffe0469f087e0, usermode=0)
at /usr/src/head/sys/amd64/amd64/trap.c:691
#8 0xffffffff80fd4aac in trap (frame=0xfffffe0469f087e0)
at /usr/src/head/sys/amd64/amd64/trap.c:442
#9 0xffffffff80fb7ba1 in calltrap ()
at /usr/src/head/sys/amd64/amd64/exception.S:236
#10 0xffffffff80a9164c in filt_proc (kn=0xfffff800918b6900,
hint=<value optimized out>) at /usr/src/head/sys/kern/kern_event.c:473
#11 0xffffffff80a8fbad in knote (list=<value optimized out>, hint=2147483648,
lockflags=<value optimized out>)
at /usr/src/head/sys/kern/kern_event.c:2045
#12 0xffffffff80a96dad in exit1 (td=0xfffff8023875a000, rval=184783104,
signo=0) at /usr/src/head/sys/kern/kern_exit.c:515
#13 0xffffffff80a95ddd in sys_sys_exit (td=0xfffff800918b6900,
uap=<value optimized out>) at /usr/src/head/sys/kern/kern_exit.c:178
#14 0xffffffff80fd5c6e in amd64_syscall (td=<value optimized out>, traced=0)
at subr_syscall.c:135
#15 0xffffffff80fb7e8b in Xfast_syscall ()
at /usr/src/head/sys/amd64/amd64/exception.S:396
#16 0x000000080092a8ca in ?? ()
Previous frame inner to this frame (corrupt stack?)
Current language: auto; currently minimal
Given the filt_proc/knote mentions, CC the folks from
https://reviews.freebsd.org/D6859 (r302235) as a best guess looking at the SVN
log for guidance.
(kgdb)
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