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Date:      Tue, 7 Feb 2012 09:47:13 +0000
From:      Anton Shterenlikht <mexas@bristol.ac.uk>
To:        freebsd-ia64@freebsd.org
Subject:   Re: ia64 fatal kernel trap [WAS: panic]
Message-ID:  <20120207094713.GA81250@mech-cluster241.men.bris.ac.uk>
In-Reply-To: <20120206144444.GA71830@mech-cluster241.men.bris.ac.uk>
References:  <20120206142239.GA71689@mech-cluster241.men.bris.ac.uk> <20120206144444.GA71830@mech-cluster241.men.bris.ac.uk>

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On Mon, Feb 06, 2012 at 02:44:44PM +0000, Anton Shterenlikht wrote:
> > fatal kernel trap (cpu 1):
> > 
> >     trap vector = 0x14 (Page Not Present)
> >     cr.iip      = 0x9ffc0000008cb960
> >     cr.ipsr     = 0x1010080a6018 (ac,mfl,ic,i,dt,dfh,rt,cpl=0,it,ri=0,bn)
> >     cr.isr      = 0x400000000 (code=0,vector=0,r,ei=0)
> >     cr.ifa      = 0x168
> >     curthread   = 0xe000000011a9f9e0
> >         pid = 760, comm = dig
> > 
> > [ thread pid 760 tid 100073 ]
> > Stopped at      cpu_set_upcall+0x190:   [M0]    ld8 r14=[r14] ;;
> > db> 
> > db> show proc 760
> > Process 760 (dig) at 0xe000000011a9a8e0:
> >  state: NORMAL
> >  uid: 0  gids: 0
> >  parent: pid 759 at 0xe000000011b64000
> >  ABI: FreeBSD ELF64
> >  arguments: dig
> >  threads: 1
> > 100073                   Run     CPU 1                       dig
> > db> 
> > db> thread 100073
> > [ thread pid 760 tid 100073 ]
> > cpu_set_upcall+0x190:   [M0]    ld8 r14=[r14] ;;
> > db>
> > db> bt
> > Tracing pid 760 tid 100073 td 0xe000000011a9f9e0
> > cpu_set_upcall(0xe000000011a9e8a0, 0xe000000011a9f9e0, 0xa0000000f87ab780, 0xa0000000f87ab550) at cpu_set_upcall+0x190
> > create_thread(0xe000000011a9f9e0, 0x0, 0x1209a7090, 0x120c04800, 0x7fffffffff9fe000, 0x200000, 0x12039c200, 0x120c04800) at create_thread+0x1c0
> > kern_thr_new(0xe000000011a9f9e0, 0xa0000000f872b330, 0x9ffc000000436360) at kern_thr_new+0x100
> > sys_thr_new(0xe000000011a9f9e0, 0xa0000000f872b4e8, 0x9ffc0000008c6bf0, 0x48d) at sys_thr_new+0xa0
> > syscall(0xe000000011a9a8e0, 0xa0000000f872b3a8, 0x120c0442c, 0xe000000011a9f9e0, 0x0, 0x0, 0x9ffc0000008c2ec0, 0x8) at syscall+0x550
> > epc_syscall_return() at epc_syscall_return
> > db> 

This panic now happens very often:

fatal kernel trap (cpu 0):

    trap vector = 0x14 (Page Not Present)
    cr.iip      = 0x9ffc0000008cb960
    cr.ipsr     = 0x1010080a6018 (ac,mfl,ic,i,dt,dfh,rt,cpl=0,it,ri=0,bn)
    cr.isr      = 0x400000000 (code=0,vector=0,r,ei=0)
    cr.ifa      = 0x168
    curthread   = 0xe0000000114159e0
        pid = 57093, comm = csup

[ thread pid 57093 tid 100058 ]
Stopped at      cpu_set_upcall+0x190:   [M0]    ld8 r14=[r14] ;;
db> 
db> show thread
Thread 100058 at 0xe0000000114159e0:
 proc (pid 57093): 0xe00000001198ed50
 name: csup
 stack: 0xa0000000ecd4e000-0xa0000000ecd55fff
 flags: 0x4  pflags: 0
 state: RUNNING (CPU 0)
 priority: 126
 container lock: sched lock 0 (0x9ffc000000ca6a00)
db> 
db> show proc
Process 57093 (csup) at 0xe00000001198ed50:
 state: NORMAL
 uid: 0  gids: 0, 5
 parent: pid 57091 at 0xe000000011aac470
 ABI: FreeBSD ELF64
 arguments: /usr/bin/csup
 threads: 1
100058                   Run     CPU 0                       csup
db> 
db> bt
Tracing pid 57093 tid 100058 td 0xe0000000114159e0
cpu_set_upcall(0xe000000015e79590, 0xe0000000114159e0, 0xa0000000f89fb780, 0xa0000000f89fb550) at cpu_set_upcall+0x190
create_thread(0xe0000000114159e0, 0x0, 0x1200b3890, 0x120805800, 0x7fffffffff9fe000, 0x200000, 0x1200b6200, 0x120805800) at create_thread+0x1c0
kern_thr_new(0xe0000000114159e0, 0xa0000000ecd55330, 0x9ffc000000436360) at kern_thr_new+0x100
sys_thr_new(0xe0000000114159e0, 0xa0000000ecd554e8, 0x9ffc0000008c6bf0, 0x48d) at sys_thr_new+0xa0
syscall(0xe00000001198ed50, 0xa0000000ecd553a8, 0x12080442c, 0xe0000000114159e0, 0x0, 0x0, 0x9ffc0000008c2ec0, 0x8) at syscall+0x550
epc_syscall_return() at epc_syscall_return
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



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