https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242184
Bug ID: 242184
Summary: r354398 causes panic in nfs_unmount during shutdown
Product: Base System
Version: 12.0-STABLE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: r...@ronald.org
Created attachment 209375
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=209375&action=edit
core.txt.3
Recent 12.1-STABLE kernels panic on every reboot/shutdown in nfs_unmount (when
NFS file systems are mounted). I tracked it down to the change in r354398:
MFC r353891:
Fix interface between nfsclient and vnode pager.
Starting with r354398 the system panics on every reboot/shutdown while
mounted NFS file systems are present:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 10
fault virtual address = 0x18
fault code = supervisor write data, page not present
instruction pointer = 0x20:0xffffffff80acc688
stack pointer = 0x28:0xfffffe0075d55350
frame pointer = 0x28:0xfffffe0075d553a0
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 = 1 (init)
trap number = 12
panic: page fault
cpuid = 0
time = 1574577411
KDB: stack backtrace:
#0 0xffffffff80c1d917 at kdb_backtrace+0x67
#1 0xffffffff80bd0dad at vpanic+0x19d
#2 0xffffffff80bd0c03 at panic+0x43
#3 0xffffffff810aa82c at trap_fatal+0x39c
#4 0xffffffff810aa87f at trap_pfault+0x4f
#5 0xffffffff810a9eb1 at trap+0x2a1
#6 0xffffffff8108364c at calltrap+0x8
#7 0xffffffff8122ea0c at VOP_LOCK1_APV+0x7c
#8 0xffffffff80cb26f4 at _vn_lock+0x44
#9 0xffffffff80ca1a88 at vputx+0x138
#10 0xffffffff80ba903d at lf_free_lock+0x25d
#11 0xffffffff80ba940f at lf_purgelocks+0x2df
#12 0xffffffff80c8ffa4 at vop_stdadvlockpurge+0x14
#13 0xffffffff8122f4bc at VOP_ADVLOCKPURGE_APV+0x7c
#14 0xffffffff80ca2a38 at vgonel+0x248
#15 0xffffffff80ca2112 at vflush+0x312
#16 0xffffffff80ad3865 at nfs_unmount+0xd5
#17 0xffffffff80c99e09 at dounmount+0x579
Revision r354394 is stable.
Core information core.txt.3 is attached. I can make vmcore available when
needed.
--
You are receiving this mail because:
You are the assignee for the bug.
_______________________________________________
freebsd-bugs@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/freebsd-bugs
To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"
