On Friday, 24 November 2006 at 11:11:48 +0800, LI Xin wrote:
> Nikolay Pavlov wrote:
> > On Thursday, 23 November 2006 at 20:24:15 +0800, [EMAIL PROTECTED] wrote:
> >> Hi,
> >>
> >> On Wed, 22 Nov 2006 21:55:49 +0200, Nikolay Pavlov <[EMAIL PROTECTED]>
> >> wrote:
> >>> Hi.
> >>> It seems i have a deadlock on 6.2-PRERELEASE.
> >>> This is squid server in accelerator mode.
> >>> I can easily trigger it with a high rate of requests.
> >>> Squid is locked on some "zoneli" state, i am not sure what it is.
> >>> Also i can't KILL proccess even with SIGKILL.
> >>> In addition one of sshd proccess is locked too.
> >> Would you please update to the latest RELENG_6 and apply this patch:
> >>
> >> http://people.freebsd.org/~delphij/misc/patch-zonelimit-workaround
> >>
> >> to see if things gets improved?
> >>
> >> Thanks in advance!
> >>
> >> Cheers,
> >
> > Well. This patch works quite ambiguous for me.
> > Under heavy load this box become unresponseble via network.
> > System is mostly idle. Squid is locked in zoneli.
>
> Would you please give me the output of "sysctl vm.zone" on a patched
> system? It's not important whether it is loaded.
Here it is:
[EMAIL PROTECTED]:~# sysctl vm.zone
vm.zone:
ITEM SIZE LIMIT USED FREE REQUESTS
FFS2 dinode: 256, 0, 84920, 15040, 1499541
FFS1 dinode: 128, 0, 0, 0, 0
FFS inode: 132, 0, 84920, 15043, 1499541
Mountpoints: 664, 0, 7, 5, 7
SWAPMETA: 276, 121576, 0, 0, 0
pfosfp: 28, 0, 188, 193, 188
pfospfen: 108, 0, 345, 51, 345
pfiaddrpl: 92, 0, 0, 0, 0
pfstatescrub: 28, 0, 0, 0, 0
pffrcent: 12, 50141, 0, 0, 0
pffrcache: 48, 10062, 0, 0, 0
pffrag: 48, 0, 0, 156, 47
pffrent: 16, 203, 0, 203, 99
pfrkentry2: 156, 0, 0, 0, 0
pfrkentry: 156, 0, 5, 45, 8
pfrktable: 1240, 0, 4, 5, 11
pfpooladdrpl: 68, 0, 2, 110, 2
pfaltqpl: 128, 0, 0, 0, 0
pfstatepl: 260, 15000, 4478, 1327, 1670408
pfrulepl: 604, 0, 9, 9, 9
pfsrctrpl: 100, 15015, 0, 0, 0
rtentry: 132, 0, 14, 44, 25
ripcb: 180, 131076, 0, 44, 2
sackhole: 20, 0, 95, 243, 3451100
tcpreass: 20, 8281, 0, 169, 2584
hostcache: 76, 15400, 6178, 222, 61324
syncache: 100, 15366, 43, 152, 1682074
tcptw: 48, 8268, 270, 198, 1499466
tcpcb: 464, 131072, 816, 2632, 1723491
inpcb: 180, 131076, 1086, 2434, 1723491
udpcb: 180, 131076, 12, 32, 251
ipq: 32, 4181, 0, 0, 0
unpcb: 140, 131096, 14, 42, 890
socket: 356, 131076, 842, 2524, 1724635
KNOTE: 68, 0, 0, 112, 128
PIPE: 408, 0, 7, 20, 2476
NFSNODE: 460, 0, 3, 21, 14
NFSMOUNT: 480, 0, 1, 15, 1
DIRHASH: 1024, 0, 894, 930, 29255
NAMEI: 1024, 0, 0, 12, 2924657
L VFS Cache: 291, 0, 96, 125, 202
S VFS Cache: 68, 0, 80925, 13435, 1464860
VNODEPOLL: 76, 0, 0, 0, 0
VNODE: 272, 0, 84967, 15049, 1499617
ata_composit: 196, 0, 0, 0, 0
ata_request: 204, 0, 0, 0, 0
g_bio: 132, 0, 0, 3596, 1759992
ACL UMA zone: 388, 0, 0, 0, 0
mbuf_jumbo_1: 16384, 0, 0, 0, 0
mbuf_jumbo_9: 9216, 0, 0, 0, 0
mbuf_jumbo_p: 4096, 0, 0, 0, 0
mbuf_cluster: 2048, 131072, 9788, 55914, 55681090
mbuf: 256, 65550, 9886, 55664, 94834002
mbuf_packet: 256, 65550, 9946, 55604, 56552142
VMSPACE: 296, 0, 30, 35, 5026
UPCALL: 44, 0, 0, 0, 0
KSEGRP: 88, 0, 112, 48, 112
THREAD: 376, 0, 112, 8, 112
PROC: 536, 0, 72, 40, 5070
MAC labels: 20, 0, 88313, 13594, 6711573
Files: 72, 0, 342, 3103, 4744891
4096: 4096, 0, 130, 37, 1227567
2048: 2048, 0, 149, 97, 7768863
1024: 1024, 0, 50, 110, 6638355
512: 512, 0, 3281, 2063, 158715
256: 256, 0, 391, 524, 103478
128: 128, 0, 1911, 1749, 2761553
64: 64, 0, 3259, 25887, 658792
32: 32, 0, 1580, 567, 172242
16: 16, 0, 2492, 959, 3591762
mt_zone: 64, 0, 182, 54, 182
DP fakepg: 72, 0, 0, 0, 0
PV ENTRY: 24, 2228360, 239940, 1485, 2854298
MAP ENTRY: 68, 0, 779, 565, 195962
KMAP ENTRY: 68, 57456, 17, 151, 408504
MAP: 192, 0, 7, 33, 7
VM OBJECT: 132, 0, 65888, 21141, 274462
128 Bucket: 524, 0, 1894, 3, 112379
64 Bucket: 268, 0, 36, 6, 36
32 Bucket: 140, 0, 33, 23, 33
16 Bucket: 76, 0, 38, 12, 38
UMA Hash: 128, 0, 4, 26, 6
UMA RCntSlab: 104, 0, 32851, 5, 32851
UMA Slabs: 64, 0, 1489, 45, 163284
UMA Zones: 120, 0, 84, 6, 84
UMA Kegs: 140, 0, 84, 12, 84
>
>
> > ast pid: 840; load averages: 0.26, 0.24, 0.17 up 0+00:11:50 10:19:46
> > 34 processes: 1 running, 33 sleeping
> > CPU states: 0.4% user, 0.0% nice, 0.4% system, 1.5% interrupt, 97.8%
> > idle
> > Mem: 225M Active, 144M Inact, 261M Wired, 12K Cache, 112M Buf, 3259M Free
> > Swap: 4070M Total, 4070M Free
> >
> > PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMAND
> > 682 squid 1 -16 0 207M 207M zoneli 2:18 6.59% squid
> > 709 root 1 -8 0 7768K 7240K piperd 0:00 0.00% perl5.8.8
> > 691 root 1 96 0 6632K 4796K select 0:00 0.00% snmpd
> > 829 root 1 76 -20 2400K 1648K RUN 0:00 0.00% top
> > 790 quetzal 1 96 0 6220K 3252K select 0:00 0.00% sshd
> > 788 root 1 4 0 6232K 3232K sbwait 0:00 0.00% sshd
> > 837 root 1 20 0 5048K 3024K pause 0:00 0.00% tcsh
> > 832 root 1 4 0 6232K 3236K sbwait 0:00 0.00% sshd
> > 820 root 1 20 0 4700K 2856K pause 0:00 0.00% tcsh
> > 645 root 1 96 0 2984K 1808K select 0:00 0.00% ntpd
> > 791 quetzal 1 20 0 4708K 2872K pause 0:00 0.00% tcsh
> > 560 root 1 96 0 1352K 996K select 0:00 0.00% syslogd
> > 362 _pflogd 1 -58 0 1600K 1144K bpf 0:00 0.00% pflogd
> > 835 quetzal 1 20 0 4728K 2960K pause 0:00 0.00% tcsh
> > 688 squid 1 -8 0 1224K 632K piperd 0:00 0.00% unlinkd
> > 834 quetzal 1 96 0 6220K 3252K select 0:00 0.00% sshd
> > 840 root 1 20 0 1540K 960K pause 0:00 0.00% netstat
> > 719 root 1 96 0 3464K 2796K select 0:00 0.00% sendmail
> > 729 root 1 8 0 1364K 1060K nanslp 0:00 0.00% cron
> >
> > [EMAIL PROTECTED]:~# netstat -h 1
> > input (Total) output
> > packets errs bytes packets errs bytes colls
> > 1.6K 0 1.3M 1.5K 0 1.6M 0
> > 1.8K 0 1.6M 1.7K 0 1.6M 0
> > 1.3K 0 1.0M 1.4K 0 1.4M 0
> > 1.5K 0 1.3M 1.5K 0 1.4M 0
> > 1.6K 0 1.4M 1.6K 0 1.5M 0
> > 1.7K 0 1.5M 1.6K 0 1.5M 0
> > 1.3K 0 830K 1.4K 0 1.5M 0
> > 1.1K 0 679K 1.3K 0 1.4M 0
> > 812 0 501K 912 0 971K 0
> > 1.2K 0 1.1M 1.2K 0 1.1M 0
> > 617 0 325K 742 0 806K 0
> > 634 0 312K 769 0 818K 0
> > 1.8K 0 1.7M 1.5K 0 1.1M 0
> > 11K 0 13M 7.5K 0 3.8M 0
> > 10K 0 12M 8.0K 0 5.2M 0
> > 9.7K 0 9.9M 8.2K 0 6.3M 0
> > 513 1.7K 666K 328 0 151K 0
> > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> > Here goes load...
> >
> > 1.0K 543 782K 434 0 247K 0
> > 0 2.3K 0 0 0 0 0
> > 2 605 1.5K 2 0 132 0
> > input (Total) output
> > packets errs bytes packets errs bytes colls
> > 0 334 0 0 0 0 0
> > 0 286 0 0 0 0 0
> > 0 288 0 0 0 0 0
> > 819 204 689K 328 0 122K 0
> > 0 1.7K 0 0 0 0 0
> > 866 1.2K 719K 375 0 141K 0
> > 144 1.5K 175K 111 0 55K 0
> > 0 1.3K 0 0 0 0 0
> > 687 182 426K 304 0 73K 0
> > 0 3.2K 0 0 0 0 0
> > 1.0K 0 723K 405 0 126K 0
> > 17 1.8K 25K 11 0 2.2K 0
> > 598 990 409K 163 0 32K 0
> > 785 1.9K 635K 313 0 85K 0
> > 0 3.1K 0 0 0 0 0
> > 0 1.0K 0 0 0 0 0
> > 0 82 0 0 0 0 0
> > 0 205 0 0 0 0 0
> > 0 181 0 0 0 0 0
> > 0 197 0 0 0 0 0
> > 1.0K 633 915K 442 0 89K 0
> > input (Total) output
> > packets errs bytes packets errs bytes colls
> > 821 1.8K 712K 297 0 53K 0
> > 481 1.8K 437K 326 0 91K 0
> > 0 1.5K 0 0 0 0 0
> > 2 190 3.0K 2 0 356 0
> > 0 210 0 0 0 0 0
> > 0 150 0 0 0 0 0
> > 0 210 0 0 0 0 0
> > 799 631 938K 458 0 99K 0
> > 36 2.1K 41K 27 0 5.5K 0
> > 678 260 898K 366 0 70K 0
> >
> > BUT after some time, with out any load squid is responding again without
> > any reboot.
> >
> > Some other info:
> >
> > [EMAIL PROTECTED]:~# netstat -i
> > Name Mtu Network Address Ipkts Ierrs Opkts Oerrs
> > Coll
> > em0 1500 <Link#1> 00:30:48:2a:de:5a 984648 11332 939484 0
> > 0
> > em0 1500 206.53.57/26 accel1 968817 - 939431 -
> > -
> > em1* 1500 <Link#2> 00:30:48:2a:de:5b 0 0 0 0
> > 0
> > lo0 16384 <Link#3> 314 0 314 0
> > 0
> > lo0 16384 localhost ::1 0 - 0 -
> > -
> > lo0 16384 your-net localhost 314 - 314 -
> > -
> > pflog 33208 <Link#4> 0 0 0 0
> > 0
> >
> > Another intresting thing - i see that mbufs deniend counter is growing:
> >
> > [EMAIL PROTECTED]:~# netstat -m
> > 65485/65/65550 mbufs in use (current/cache/total)
> > 65284/418/65702/131072 mbuf clusters in use (current/cache/total/max)
> > 65284/0 mbuf+clusters out of packet secondary zone in use (current/cache)
> > 0/0/0/0 4k (page size) jumbo clusters in use (current/cache/total/max)
> > 0/0/0/0 9k jumbo clusters in use (current/cache/total/max)
> > 0/0/0/0 16k jumbo clusters in use (current/cache/total/max)
> > 146939K/852K/147791K bytes allocated to network (current/cache/total)
> > 21823/0/75016 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
> > 0/0/0 requests for jumbo clusters denied (4k/9k/16k)
> > 0/3/6656 sfbufs in use (current/peak/max)
> > 0 requests for sfbufs denied
> > 0 requests for sfbufs delayed
> > 0 requests for I/O initiated by sendfile
> > 0 calls to protocol drain routines
> >
> > [EMAIL PROTECTED]:~# netstat -m
> > 65538/12/65550 mbufs in use (current/cache/total)
> > 65338/364/65702/131072 mbuf clusters in use (current/cache/total/max)
> > 65338/6 mbuf+clusters out of packet secondary zone in use (current/cache)
> > 0/0/0/0 4k (page size) jumbo clusters in use (current/cache/total/max)
> > 0/0/0/0 9k jumbo clusters in use (current/cache/total/max)
> > 0/0/0/0 16k jumbo clusters in use (current/cache/total/max)
> > 147060K/731K/147791K bytes allocated to network (current/cache/total)
> > 23262/0/86054 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
> > 0/0/0 requests for jumbo clusters denied (4k/9k/16k)
> > 0/3/6656 sfbufs in use (current/peak/max)
> > 0 requests for sfbufs denied
> > 0 requests for sfbufs delayed
> > 0 requests for I/O initiated by sendfile
> > 0 calls to protocol drain routines
> >
> > My configuration files:
> >
> > [EMAIL PROTECTED]:~# cat /boot/loader.conf
> > # --- Loader settings ---
> > autoboot_delay="5" # Delay in seconds before autobooting
> >
> > # --- Kernel tunables ---
> > kern.ipc.nmbclusters="131072" # Set the number of mbuf clusters
> > kern.cam.scsi_delay="5000" # Delay (in ms) before probing SCSI
> > kern.maxdsiz="2752M" # Allow more memory allocation for squid
> > kern.dfldsiz="2752M" # Allow more memory allocation for squid
> > #kern.maxssiz="256M" # Allow more memory allocation for squid
> > #kern.maxusers="512"
> >
> > # --- Networking modules ---
> > pf_load="YES" # Packet filter
> >
> > # --- Other modules ---
> > accf_data_load="YES" # Wait for data accept filter
> > accf_http_load="YES" # Wait for full HTTP request accept filter
> >
> >
> > [EMAIL PROTECTED]:~# cat /etc/sysctl.conf
> > # $FreeBSD: src/etc/sysctl.conf,v 1.8 2003/03/13 18:43:50 mux Exp $
> > #
> > # This file is read when going to multi-user and its contents piped thru
> > # ``sysctl'' to adjust kernel values. ``man 5 sysctl.conf'' for details.
> > #
> >
> > # Uncomment this to prevent users from seeing information about processes
> > that
> > # are being run under another UID.
> > #security.bsd.see_other_uids=0
> >
> > # --- MAC access for squid ---
> > net.inet.ip.portrange.reservedlow=0
> > net.inet.ip.portrange.reservedhigh=0
> > security.mac.portacl.rules=uid:100:tcp:80
> >
> >
> > # --- Kernel tunning ---
> > kern.ipc.somaxconn=8192
> >
> > # --- Network tunning and protection ---
> > kern.ipc.maxsockbuf=1048576
> > net.inet.tcp.sendspace=262144
> > net.inet.tcp.recvspace=131072
> > net.inet.tcp.msl=3000
> > net.inet.icmp.icmplim=50
> > net.inet.icmp.drop_redirect=1
> > net.inet.icmp.log_redirect=1
> > net.inet.ip.redirect=0
> > net.inet6.ip6.redirect=0
> >
> > Some kernel options:
> >
> > options VM_KMEM_SIZE_MAX=536870912"
> > options MAC
> > options MAC_PORTACL
> >
> >
> > Ahh... And here is also a panic :)
> >
> >
> > [EMAIL PROTECTED]:/usr/obj/usr/src/sys/ACCEL# kgdb kernel.debug
> > /var/crash/vmcore.3
> > kgdb: kvm_nlist(_stopped_cpus):
> > kgdb: kvm_nlist(_stoppcbs):
> > [GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so:
> > Undefined symbol "ps_pglobal_lookup"]
> > GNU gdb 6.1.1 [FreeBSD]
> > Copyright 2004 Free Software Foundation, Inc.
> > GDB is free software, covered by the GNU General Public License, and you are
> > welcome to change it and/or distribute copies of it under certain
> > conditions.
> > Type "show copying" to see the conditions.
> > There is absolutely no warranty for GDB. Type "show warranty" for details.
> > This GDB was configured as "i386-marcel-freebsd".
> >
> > Unread portion of the kernel message buffer:
> >
> >
> > Fatal trap 12: page fault while in kernel mode
> > fault virtual address = 0xc
> > fault code = supervisor read, page not present
> > instruction pointer = 0x20:0xc054dfac
> > stack pointer = 0x28:0xf4817ad0
> > frame pointer = 0x28:0xf4817adc
> > code segment = base 0x0, limit 0xfffff, type 0x1b
> > = DPL 0, pres 1, def32 1, gran 1
> > processor eflags = interrupt enabled, resume, IOPL = 0
> > current process = 13 (swi1: net)
> > trap number = 12
> > panic: page fault
> > KDB: stack backtrace:
> > kdb_backtrace(100,c927aa80,28,f4817a90,c,...) at kdb_backtrace+0x29
> > panic(c06c9d38,c06f033a,0,fffff,c927d69b,...) at panic+0xa8
> > trap_fatal(f4817a90,c,c927aa80,0,c,...) at trap_fatal+0x2a6
> > trap_pfault(f4817a90,0,c) at trap_pfault+0x1f3
> > trap(c93b0008,f4810028,c0590028,1,0,...) at trap+0x325
> > calltrap() at calltrap+0x5
> > --- trap 0xc, eip = 0xc054dfac, esp = 0xf4817ad0, ebp = 0xf4817adc ---
> > m_copydata(0,ffffffff,1,cfcbc174,c1040460,...) at m_copydata+0x28
> > tcp_output(cc6781d0) at tcp_output+0xa17
> > tcp_input(ca16ab00,14,1,c927aa80,c927aa80,...) at tcp_input+0x286c
> > ip_input(ca16ab00) at ip_input+0x5e1
> > netisr_processqueue(c073d7b8) at netisr_processqueue+0x9f
> > swi_net(0) at swi_net+0xf2
> > ithread_execute_handlers(c9279648,c92c3400) at
> > ithread_execute_handlers+0x121
> > ithread_loop(c92436a0,f4817d38) at ithread_loop+0x54
> > fork_exit(c04ff5c8,c92436a0,f4817d38) at fork_exit+0x70
> > fork_trampoline() at fork_trampoline+0x8
> > --- trap 0x1, eip = 0, esp = 0xf4817d6c, ebp = 0 ---
> > Uptime: 11m24s
> > Dumping 3967 MB (3 chunks)
> > chunk 0: 1MB (159 pages) ... ok
> > chunk 1: 3966MB (1015280 pages) 3950 3934 3918 3902 3886 3870 3854 3838
> > 3822 3806 3790 3774 3758 3742 3726 3710 3694 3678 3662 3646 3630 3614 3598
> > 3582 3566 3550 3534 3518 3502 3486 3470 3454 3438 3422 3406 3390 3374 3358
> > 3342 3326 3310 3294 3278 3262 3246 3230 3214 3198 3182 3166 3150 3134 3118
> > 3102 3086 3070 3054 3038 3022 3006 2990 2974 2958 2942 2926 2910 2894 2878
> > 2862 2846 2830 2814 2798 2782 2766 2750 2734 2718 2702 2686 2670 2654 2638
> > 2622 2606 2590 2574 2558 2542 2526 2510 2494 2478 2462 2446 2430 2414 2398
> > 2382 2366 2350 2334 2318 2302 2286 2270 2254 2238 2222 2206 2190 2174 2158
> > 2142 2126 2110 2094 2078 2062 2046 2030 2014 1998 1982 1966 1950 1934 1918
> > 1902 1886 1870 1854 1838 1822 1806 1790 1774 1758 1742 1726 1710 1694 1678
> > 1662 1646 1630 1614 1598 1582 1566 1550 1534 1518 1502 1486 1470 1454 1438
> > 1422 1406 1390 1374 1358 1342 1326 1310 1294 1278 1262 1246 1230 1214 1198
> > 1182 1166 1150 1134 1118 1102 1086 1070 1054 1038 1022 1006 990 974 958 942
> > 926 910 894 8
> 78 862 846 830 814 798 782 766 750 734 718 702 686 670 654 638 622 606 590
> 574 558 542 526 510 494 478 462 446 430 414 398 382 366 350 334 318 302 286
> 270 254 238 222 206 190 174 158 142 126 110 94 78 62 46 30 14 ... ok
> > chunk 2: 1MB (128 pages)
> >
> > #0 doadump () at pcpu.h:165
> > 165 pcpu.h: No such file or directory.
> > in pcpu.h
> > (kgdb) bt
> > #0 doadump () at pcpu.h:165
> > #1 0xc05167d2 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
> > #2 0xc0516a98 in panic (fmt=0xc06c9d38 "%s") at
> > /usr/src/sys/kern/kern_shutdown.c:565
> > #3 0xc06a416a in trap_fatal (frame=0xf4817a90, eva=12) at
> > /usr/src/sys/i386/i386/trap.c:837
> > #4 0xc06a3e9b in trap_pfault (frame=0xf4817a90, usermode=0, eva=12) at
> > /usr/src/sys/i386/i386/trap.c:745
> > #5 0xc06a3a95 in trap (frame=
> > {tf_fs = -918880248, tf_es = -192872408, tf_ds = -1067909080, tf_edi
> > = 1, tf_esi = 0, tf_ebp = -192840996, tf_isp = -192841028, tf_ebx = 4380,
> > tf_edx = -1, tf_ecx = 0, tf_eax = -808730252, tf_trapno = 12, tf_err = 0,
> > tf_eip = -1068179540, tf_cs = 32, tf_eflags = 66050, tf_esp = 4380, tf_ss =
> > -865631792}) at /usr/src/sys/i386/i386/trap.c:435
> > #6 0xc0691cda in calltrap () at /usr/src/sys/i386/i386/exception.s:139
> > #7 0xc054dfac in m_copydata (m=0x0, off=-1, len=1, cp=0xcfcbc174 "") at
> > /usr/src/sys/kern/uipc_mbuf.c:543
> > #8 0xc05ac60f in tcp_output (tp=0xcc6781d0) at
> > /usr/src/sys/netinet/tcp_output.c:770
> > #9 0xc05aaea4 in tcp_input (m=0xca16ab00, off0=20) at
> > /usr/src/sys/netinet/tcp_input.c:2471
> > #10 0xc05a1bb9 in ip_input (m=0xca16ab00) at
> > /usr/src/sys/netinet/ip_input.c:785
> > #11 0xc0590a6f in netisr_processqueue (ni=0xc073d7b8) at
> > /usr/src/sys/net/netisr.c:236
> > #12 0xc0590c6a in swi_net (dummy=0x0) at /usr/src/sys/net/netisr.c:349
> > #13 0xc04ff511 in ithread_execute_handlers (p=0xc9279648, ie=0xc92c3400) at
> > /usr/src/sys/kern/kern_intr.c:682
> > #14 0xc04ff61c in ithread_loop (arg=0xc92436a0) at
> > /usr/src/sys/kern/kern_intr.c:765
> > #15 0xc04fe498 in fork_exit (callout=0xc04ff5c8 <ithread_loop>,
> > arg=0xc92436a0, frame=0xf4817d38) at /usr/src/sys/kern/kern_fork.c:821
> > #16 0xc0691d3c in fork_trampoline () at
> > /usr/src/sys/i386/i386/exception.s:208
>
> This looks like that we have missed a lock here, and presumably this can
> be avoided by Robert's reference counting changes in -HEAD. Robert, do
> you have some comments?
>
> Cheers,
> --
> Xin LI <[EMAIL PROTECTED]> http://www.delphij.net/
> FreeBSD - The Power to Serve!
>
--
======================================================================
- Best regards, Nikolay Pavlov. <<<-----------------------------------
======================================================================
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