On Sunday 21 October 2007 06:29:46 pm Gleb Kozyrev wrote: > Hello. > > Running rtorrent and ftp brings my system to a deadlock > in a few hours. Kernel still responds to pings and sends some > TCP acks. > > The kernel is from fresh RELENG_7, userland is from 'CURRENT' of 20 Aug. > > See <http://debug.files.googlepages.com/Serial-20071022-004528.txt> > > Below are some snippets: > > db> show alllocks > Process 1406 (systat) thread 0xffffff002aa016a0 (100181) > shared sx allproc r = 0 (0xffffffff80a72820) locked _at_ > /usr/src/sys/vm/vm_meter.c:130 > exclusive sx sysctl lock r = 0 (0xffffffff80a72f40) locked _at_ > /usr/src/sys/kern/kern_sysctl.c:1396 > Process 1129 (rtorrent) thread 0xffffff000a6ae000 (100163) > exclusive sx user map r = 0 (0xffffff0001056890) locked _at_ > /usr/src/sys/vm/vm_map.c:2195 > Process 1105 (sshd) thread 0xffffff000a6ae350 (100162) > exclusive sx so_rcv_sx r = 0 (0xffffff000a78a928) locked _at_ > /usr/src/sys/kern/uipc_sockbuf.c:145 > Process 1040 (cron) thread 0xffffff0001c61350 (100130) > shared sx proctree r = 0 (0xffffffff80a72860) locked _at_ > /usr/src/sys/kern/kern_fork.c:286 > Process 998 (mysqld) thread 0xffffff002aa119f0 (100192) > exclusive sx so_rcv_sx r = 0 (0xffffff0003858670) locked _at_ > /usr/src/sys/kern/uipc_sockbuf.c:145 > Process 998 (mysqld) thread 0xffffff002aa12000 (100191) > exclusive sx so_rcv_sx r = 0 (0xffffff000abbb928) locked _at_ > /usr/src/sys/kern/uipc_sockbuf.c:145 > Process 932 (smbd) thread 0xffffff000140c000 (100068) > shared sx proctree r = 0 (0xffffffff80a72860) locked _at_ > /usr/src/sys/kern/kern_fork.c:286 > > > kernel config: > > ident RUN-071021 > include GENERIC > options INCLUDE_CONFIG_FILE > nooption SMP > nocpu I486_CPU > nocpu I586_CPU > nooption SCHED_4BSD > options SCHED_ULE > device crypto > options IPSEC > options LIBALIAS > options IPFIREWALL > options IPFIREWALL_VERBOSE > options IPFIREWALL_FORWARD > options IPFIREWALL_NAT > options GEOM_JOURNAL > options KDB > options DDB > options KDB_TRACE > options ALT_BREAK_TO_DEBUGGER > options INVARIANTS > options INVARIANT_SUPPORT > options WITNESS > options WITNESS_SKIPSPIN > nodevice umass > device ucom > device uplcom > > > loader.conf: > > vfs.root.mountfrom="zfs:base/system" > if_bridge_load="YES" > dummynet_load="YES" > ipdivert_load="YES" > zfs_load="YES" > accf_http_load="YES" > > > With an older kernel it once was just > > db> show alllocks > Process 1130 (rtorrent) thread 0xffffff000962e9f0 (100160) > exclusive sx so_rcv_sx r = 0 (0xffffff000987e670) locked _at_ > /usr/src/sys/kern/uipc_sockbuf.c:145 > Process 1096 (sshd) thread 0xffffff000962a350 (100170) > exclusive sx so_rcv_sx r = 0 (0xffffff00096f9100) locked _at_ > /usr/src/sys/kern/uipc_sockbuf.c:145 > Process 996 (mysqld) thread 0xffffff0031e0c000 (100191) > exclusive sx so_rcv_sx r = 0 (0xffffff0009870be0) locked _at_ > /usr/src/sys/kern/uipc_sockbuf.c:145 > > <http://debug.files.googlepages.com/Serial-20071021-020559.txt> > > > Please suggest any other commands to run in DDB if needed. > Cores are saved. show sleepchain <pid> will show if it's a real deadlock or not. -- John BaldwinReceived on Thu Oct 25 2007 - 17:19:38 UTC
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