Date: Tue, 18 Dec 2001 22:47:58 +0000 From: Josef Karthauser <joe@tao.org.uk> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Martin Blapp <mb@imp.ch>, freebsd-hackers@FreeBSD.ORG Subject: Re: deadlock with softupdates ? Message-ID: <20011218224758.A412@tao.org.uk> In-Reply-To: <200112181924.fBIJOSe70566@apollo.backplane.com>; from dillon@apollo.backplane.com on Tue, Dec 18, 2001 at 11:24:28AM -0800 References: <20011217223123.P59342-100000@levais.imp.ch> <200112172141.fBHLfSc33112@apollo.backplane.com> <20011218105527.A708@tao.org.uk> <200112181924.fBIJOSe70566@apollo.backplane.com>
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On Tue, Dec 18, 2001 at 11:24:28AM -0800, Matthew Dillon wrote:
>
> :genius# ps -axl -M vmcore.15 -N kernel.15=20
> :(attached file)
> :
> :The back traces for the processes locked in inode is also attached.
> :
> :Being green to debugging this kind of thing what should I do next?
> :
> :Joe
>
> Please backtrace the processes stuck in 'vfscac' as well. Actually,
> backtrace all the processes that are stuck in weird places.
Ok, here are some vfscac processes:
(kgdb) bt
#0 0xc01db56d in mi_switch () at /usr/src/sys/kern/kern_synch.c:781
#1 0xc01dad33 in msleep (ident=0xc03326c0, mtx=0xc0355720, priority=66,
wmesg=0xc02e8634 "vfscache", timo=0) at
/usr/src/sys/kern/kern_synch.c:496
#2 0xc01cc709 in malloc (size=55, type=0xc03326c0, flags=0)
at /usr/src/sys/kern/kern_malloc.c:162
#3 0xc020acb6 in cache_enter (dvp=0xe42d5380, vp=0xe42d2900,
cnp=0xe4646c6c)
at /usr/src/sys/kern/vfs_cache.c:415
#4 0xc0277535 in ufs_lookup (ap=0xe4646b6c)
at /usr/src/sys/ufs/ufs/ufs_lookup.c:627
#5 0xc027c729 in ufs_vnoperate (ap=0xe4646b6c)
at /usr/src/sys/ufs/ufs/ufs_vnops.c:2658
#6 0xc020b1f6 in vfs_cache_lookup (ap=0xe4646bc4) at vnode_if.h:66
#7 0xc027c729 in ufs_vnoperate (ap=0xe4646bc4)
at /usr/src/sys/ufs/ufs/ufs_vnops.c:2658
#8 0xc020e9b9 in lookup (ndp=0xe4646c44) at vnode_if.h:45
#9 0xc020e4a4 in namei (ndp=0xe4646c44) at
/usr/src/sys/kern/vfs_lookup.c:168
#10 0xc0215df5 in lstat (td=0xe44ec104, uap=0xe4646d20)
at /usr/src/sys/kern/vfs_syscalls.c:2012
#11 0xc02b1c88 in syscall (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
tf_edi = -1077942172, tf_esi = -1077940908, tf_ebp = -1077942076,
tf_isp = -463180428, tf_ebx = 5, tf_edx = -1077940908, tf_ecx = 2,
tf_eax = 190, tf_trapno = 22, tf_err = 2, tf_eip = 673929251,
tf_cs = 31, tf_eflags = 663, tf_esp = -1077942312, tf_ss = 47})
at /usr/src/sys/i386/i386/trap.c:1150
#12 0xc02a52ed in syscall_with_err_pushed ()
#13 0x808e39c in ?? ()
#14 0x8052201 in ?? ()
#15 0x805abd0 in ?? ()
#16 0x806b735 in ?? ()
#17 0x804b699 in ?? ()
(kgdb) bt
#0 0xc01db56d in mi_switch () at /usr/src/sys/kern/kern_synch.c:781
#1 0xc01dad33 in msleep (ident=0xc03326c0, mtx=0xc0355720, priority=66,
wmesg=0xc02e8634 "vfscache", timo=0) at
/usr/src/sys/kern/kern_synch.c:496
#2 0xc01cc709 in malloc (size=42, type=0xc03326c0, flags=0)
at /usr/src/sys/kern/kern_malloc.c:162
#3 0xc020acb6 in cache_enter (dvp=0xe4765000, vp=0xe47c2840,
cnp=0xe44eac54)
at /usr/src/sys/kern/vfs_cache.c:415
#4 0xc68f936e in ?? ()
#5 0xc020e9b9 in lookup (ndp=0xe44eac2c) at vnode_if.h:45
#6 0xc020e4a4 in namei (ndp=0xe44eac2c) at
/usr/src/sys/kern/vfs_lookup.c:168
#7 0xc02193d8 in vn_open_cred (ndp=0xe44eac2c, flagp=0xe44eabf8,
cmode=3201,
cred=0xc7218500) at /usr/src/sys/kern/vfs_vnops.c:162
#8 0xc021919e in vn_open (ndp=0xe44eac2c, flagp=0xe44eabf8, cmode=3201)
at /usr/src/sys/kern/vfs_vnops.c:85
#9 0xc02147ca in open (td=0xe439f404, uap=0xe44ead20)
at /usr/src/sys/kern/vfs_syscalls.c:1115
#10 0xc02b1c88 in syscall (frame={tf_fs = 134545455, tf_es =
-1078001617,
tf_ds = -1078001617, tf_edi = 134591808, tf_esi = -1077937040,
tf_ebp = -1077937572, tf_isp = -464605836, tf_ebx = -1077939620,
tf_edx = 17, tf_ecx = -1077940892, tf_eax = 5, tf_trapno = 22,
tf_err = 2, tf_eip = 672822595, tf_cs = 31, tf_eflags = 647,
tf_esp = -1077940800, tf_ss = 47}) at
/usr/src/sys/i386/i386/trap.c:1150
#11 0xc02a52ed in syscall_with_err_pushed ()
#12 0x8049a75 in ?? ()
#13 0x8049a17 in ?? ()
#14 0x8049fa5 in ?? ()
#15 0x80496e2 in ?? ()
#16 0x8049622 in ?? ()
#17 0x8049219 in ?? ()
Joe
>
> -Matt
>
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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