[Jim Nance <jlnance@avanticorp.com>] more information

Magnus Ahltorp map at stacken.kth.se
Fri Sep 25 23:46:01 CEST 1998 

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Message-ID: <19980925164423.A1769 at avanticorp.com>
Date: Fri, 25 Sep 1998 16:44:23 -0400
From: Jim Nance <jlnance at avanticorp.com>
To: Magnus Ahltorp <map at stacken.kth.se>
Subject: more information
References: <lv1hfye8u28.fsf at yakko.stacken.kth.se> <5llnnnjyhe.fsf at assaris.pdc.kth.se> <lv1vhmqj2f1.fsf at yakko.stacken.kth.se>

Hello Magnus,
    I have some more information about the hangs I wrote about earlier.
These stack traces occured while arlad is in the 'hung' state.  This time
arlad is consuming all the CPU, but I can still list directories on AFS.
Also none are in select(), so I am not sure if its the same hang I wrote
about last time.

(gdb) where
#0  0x804a433 in adir_lookup (dir={Cell = 0, fid = {Volume = 536872073, 
        Vnode = 1, Unique = 1}}, name=0x8090dfc "perl", file=0x8109794, 
    ce=0x80d2208) at adir.c:179
#1  0x8054b84 in cm_lookup (dir_fid={Cell = 0, fid = {Volume = 536872073, 
        Vnode = 1, Unique = 1}}, name=0x8090dfc "perl", res=0x8109794, 
    ce=0x8109720) at inter.c:508
#2  0x8056dc2 in xfs_message_getnode (fd=6, h=0x8090dd8, size=292)
    at messages.c:584
#3  0x8056605 in xfs_message_receive (fd=6, h=0x8090dd8, size=292)
    at messages.c:339
#4  0x8055e49 in process_message (fd=6) at kernel.c:75
#5  0x805607c in kernel_interface (device=0x8085770 "/dev/xfs0")
    at kernel.c:114
#6  0x8074a74 in Create_Process_Part2 () at lwp.c:629
#7  0xfffefdfc in ?? ()
#8  0x8074b0c in Dispatcher () at lwp.c:692
#9  0x8d0bebc0 in ?? ()

#0  0x400bad14 in __syscall_writev ()
#1  0x400dee7c in __DTOR_END__ ()
#2  0x8056a5b in xfs_send_message_wakeup_vmultiple (fd=6, seqnum=2342753, 
    error=0, args=0x8109710) at messages.c:471
#3  0x8056abd in xfs_send_message_wakeup_multiple (fd=6, seqnum=2342753, 
    error=0) at messages.c:490
#4  0x8056f5b in xfs_message_getnode (fd=6, h=0x8090dd8, size=292)
    at messages.c:608
#5  0x8056605 in xfs_message_receive (fd=6, h=0x8090dd8, size=292)
    at messages.c:339
#6  0x8055e49 in process_message (fd=6) at kernel.c:75
#7  0x805607c in kernel_interface (device=0x8085770 "/dev/xfs0")
    at kernel.c:114
#8  0x8074a74 in Create_Process_Part2 () at lwp.c:629
#9  0xfffefdfc in ?? ()
#10 0x8074b0c in Dispatcher () at lwp.c:692
#11 0x8d0bebc0 in ?? ()

(gdb) where
#0  0x8078aed in _search (htab=0x80ad418, ptr=0x81085fc) at hash.c:92
#1  0x8078b93 in hashtabsearch (htab=0x80ad418, ptr=0x81085fc) at hash.c:107
#2  0x805c930 in volcache_getbyname (volname=0x40211001 "prod.qa.perl", 
    cell=0, ce=0x80d2208) at volcache.c:478
#3  0x8053273 in followmountpoint (fid=0x8109794, parent=0x81096f4, 
    ce=0x8109720) at fcache.c:2272
#4  0x8054be1 in cm_lookup (dir_fid={Cell = 0, fid = {Volume = 536872073, 
        Vnode = 1, Unique = 1}}, name=0x8090dfc "perl", res=0x8109794, 
    ce=0x8109720) at inter.c:514
#5  0x8056dc2 in xfs_message_getnode (fd=6, h=0x8090dd8, size=292)
    at messages.c:584
#6  0x8056605 in xfs_message_receive (fd=6, h=0x8090dd8, size=292)
    at messages.c:339
#7  0x8055e49 in process_message (fd=6) at kernel.c:75
#8  0x805607c in kernel_interface (device=0x8085770 "/dev/xfs0")
    at kernel.c:114
#9  0x8074a74 in Create_Process_Part2 () at lwp.c:629
#10 0xfffefdfc in ?? ()
#11 0x8074b0c in Dispatcher () at lwp.c:692
#12 0x8d0bebc0 in ?? ()
Cannot access memory at address 0x310cc483.

(gdb) where
#0  0x400bad14 in __syscall_writev ()
#1  0x400dee7c in __DTOR_END__ ()
#2  0x8056a5b in xfs_send_message_wakeup_vmultiple (fd=6, seqnum=2417320, 
    error=0, args=0x8109710) at messages.c:471
#3  0x8056abd in xfs_send_message_wakeup_multiple (fd=6, seqnum=2417320, 
    error=0) at messages.c:490
#4  0x8056f5b in xfs_message_getnode (fd=6, h=0x8090dd8, size=292)
    at messages.c:608
#5  0x8056605 in xfs_message_receive (fd=6, h=0x8090dd8, size=292)
    at messages.c:339
#6  0x8055e49 in process_message (fd=6) at kernel.c:75
#7  0x805607c in kernel_interface (device=0x8085770 "/dev/xfs0")
    at kernel.c:114
#8  0x8074a74 in Create_Process_Part2 () at lwp.c:629
#9  0xfffefdfc in ?? ()
#10 0x8074b0c in Dispatcher () at lwp.c:692
#11 0x8d0bebc0 in ?? ()

(gdb) where
#0  0x80561e4 in afsstatus2xfs_attr (status=0x8109724, fid=0x8109784, 
    attr=0x81098d8) at messages.c:207
#1  0x8056363 in fcacheentry2xfsnode (fid=0x8109794, statfid=0x8109784, 
    status=0x8109724, node=0x81098c4, ae=0x400f52f0) at messages.c:257
#2  0x8056e54 in xfs_message_getnode (fd=6, h=0x8090dd8, size=292)
    at messages.c:588
#3  0x8056605 in xfs_message_receive (fd=6, h=0x8090dd8, size=292)
    at messages.c:339
#4  0x8055e49 in process_message (fd=6) at kernel.c:75
#5  0x805607c in kernel_interface (device=0x8085770 "/dev/xfs0")
    at kernel.c:114
#6  0x8074a74 in Create_Process_Part2 () at lwp.c:629
#7  0xfffefdfc in ?? ()
#8  0x8074b0c in Dispatcher () at lwp.c:692
#9  0x8d0bebc0 in ?? ()

#0  0x400bad14 in __syscall_writev ()
#1  0x400dee7c in __DTOR_END__ ()
#2  0x8056a5b in xfs_send_message_wakeup_vmultiple (fd=6, seqnum=2581390, 
    error=0, args=0x8109710) at messages.c:471
#3  0x8056abd in xfs_send_message_wakeup_multiple (fd=6, seqnum=2581390, 
    error=0) at messages.c:490
#4  0x8056f5b in xfs_message_getnode (fd=6, h=0x8090dd8, size=292)
    at messages.c:608
#5  0x8056605 in xfs_message_receive (fd=6, h=0x8090dd8, size=292)
    at messages.c:339
#6  0x8055e49 in process_message (fd=6) at kernel.c:75
#7  0x805607c in kernel_interface (device=0x8085770 "/dev/xfs0")
    at kernel.c:114
#8  0x8074a74 in Create_Process_Part2 () at lwp.c:629
#9  0xfffefdfc in ?? ()
#10 0x8074b0c in Dispatcher () at lwp.c:692
#11 0x8d0bebc0 in ?? ()
Cannot access memory at address 0x310cc483.

#0  0x400b7f1d in __mmap ()
#1  0x804e13e in mmap_create (f=0x810867c, fd=7, len=4096, flags=FBUF_READ)
    at fbuf.c:66
#2  0x804e408 in fbuf_create (f=0x810867c, fd=7, len=4096, flags=FBUF_READ)
    at fbuf.c:312
#3  0x804a3a1 in adir_lookup (dir={Cell = 0, fid = {Volume = 536872073, 
        Vnode = 1, Unique = 1}}, name=0x8090dfc "perl", file=0x8109794, 
    ce=0x80d2208) at adir.c:168
#4  0x8054b84 in cm_lookup (dir_fid={Cell = 0, fid = {Volume = 536872073, 
        Vnode = 1, Unique = 1}}, name=0x8090dfc "perl", res=0x8109794, 
    ce=0x8109720) at inter.c:508
#5  0x8056dc2 in xfs_message_getnode (fd=6, h=0x8090dd8, size=292)
    at messages.c:584
#6  0x8056605 in xfs_message_receive (fd=6, h=0x8090dd8, size=292)
    at messages.c:339
#7  0x8055e49 in process_message (fd=6) at kernel.c:75
#8  0x805607c in kernel_interface (device=0x8085770 "/dev/xfs0")
    at kernel.c:114
#9  0x8074a74 in Create_Process_Part2 () at lwp.c:629
#10 0xfffefdfc in ?? ()
#11 0x8074b0c in Dispatcher () at lwp.c:692
#12 0x8d0bebc0 in ?? ()

-- 
----------------------------------------------------------------------------
Jim Nance                                                 Avant! Corporation
(919) 941-6655    Do you have sweet iced tea?       jim_nance at avanticorp.com
                  No, but there's sugar on the table.

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