Date: Tue, 7 Feb 2012 11:53:25 +0000 From: Anton Shterenlikht <mexas@bristol.ac.uk> To: freebsd-ia64@freebsd.org Subject: LOR and fatal kernel trap Message-ID: <20120207115324.GA87772@mech-cluster241.men.bris.ac.uk> In-Reply-To: <20120207102305.GA81545@mech-cluster241.men.bris.ac.uk> References: <20120206142239.GA71689@mech-cluster241.men.bris.ac.uk> <20120206144444.GA71830@mech-cluster241.men.bris.ac.uk> <20120207094713.GA81250@mech-cluster241.men.bris.ac.uk> <20120207102305.GA81545@mech-cluster241.men.bris.ac.uk>
next in thread | previous in thread | raw e-mail | index | archive | help
on r231087M:
lock order reversal:
1st 0xe000000011e97538 ufs (ufs) @ /usr/src/sys/kern/vfs_vnops.c:640
2nd 0xa00000009ca60798 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:1911
3rd 0xe00000001148dad8 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2167
KDB: stack backtrace:
getenv with the following non-sleepable locks held:
exclusive sleep mutex vnode interlock (vnode interlock) r = 0 (0xe00000001148db08) locked @ /usr/src/sys/kern/vfs_subr.c:2165
KDB: stack backtrace:
getenv with the following non-sleepable locks held:
exclusive sleep mutex vnode interlock (vnode interlock) r = 0 (0xe00000001148db08) locked @ /usr/src/sys/kern/vfs_subr.c:2165
KDB: stack backtrace:
getenv with the following non-sleepable locks held:
exclusive sleep mutex vnode interlock (vnode interlock) r = 0 (0xe00000001148db08) locked @ /usr/src/sys/kern/vfs_subr.c:2165
KDB: stack backtrace:
getenv with the following non-sleepable locks held:
exclusive sleep mutex vnode interlock (vnode interlock) r = 0 (0xe00000001148db08) locked @ /usr/src/sys/kern/vfs_subr.c:2165
KDB: stack backtrace:
getenv with the following non-sleepable locks held:
fatal kernel trap (cpu 1):
trap vector = 0x18 (General Exception)
cr.iip = 0x9ffc0000008b62d0
cr.ipsr = 0x1210080a6010 (mfl,ic,i,dt,dfh,rt,cpl=0,it,ri=1,bn)
cr.isr = 0x28000000030 (code=48,vector=0,ni,ei=1)
cr.ifa = 0xe000000011a5e000
curthread = 0xe000000011b08000
pid = 837, comm = cp
[ thread pid 837 tid 100082 ]
Stopped at spinlock_exit+0x71: [M1] srlz.d
dhow thread
Thread 100082 at 0xe000000011b08000:
proc (pid 837): 0xe000000011b8f630
name: cp
stack: 0xa0000000f876c000-0xa0000000f8773fff
flags: 0x10004 pflags: 0x40
state: RUNNING (CPU 1)
priority: 152
container lock: sched lock 1 (0x9ffc000000cb7800)
db> show proc
Process 837 (cp) at 0xe000000011b8f630:
state: NORMAL
uid: 1001 gids: 1001, 0, 1003, 1005
parent: pid 787 at 0xe000000011abe470
ABI: FreeBSD ELF64
arguments: cp
threads: 1
100082 Run CPU 1 cp
db> bt
Tracing pid 837 tid 100082 td 0xe000000011b08000
getenv with the following non-sleepable locks held:
exclusive sleep mutex vnode interlock (vnode interlock) r = 0 (0xe00000001148db08) locked @ /usr/src/sys/kern/vfs_subr.c:2165
KDB: stack backtrace:
spinlock_exit() at spinlock_exit+0x71
uart_quicc_class(0xb00, 0xe000000011a5e430, 0x9ffc0000008885b0, 0x206, 0x9ffc000000c60968, 0x0, 0xe000000011a5e000, 0xe000000011a5e430) at 0x18
db>
--
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 331 5944
Fax: +44 (0)117 929 4423
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20120207115324.GA87772>