I'm using the current (minus recent ssouhlal_at_'s commit). This kernel usually locked up when daily backup begins (by invoked by amanda server), but sometimes locked up in other random situations. When locked up, no ping response, but I can enter to debugger from serial console. I'm not sure which process I should suspect. Is there something I can provide to help debugging about this? Currently, compiled with INVARIANTS, INVARIANT_SUPPORT, WITNESS, WITNESS_SKIPSPIN, DEBUG_VFS_LOCKS and debug.mpsafevfs="0". ----- KDB: enter: Break sequence on console [thread pid 12 tid 100005 ] Stopped at kdb_enter+0x2b: nop db> ps pid proc uid ppid pgrp flag stat wmesg wchan cmd 2491 c186d400 91 2489 2483 0004000 [SLPQ piperd 0xc16cba80][SLP] sed 2490 c1802e00 91 2489 2483 0004000 [SLPQ piperd 0xc183e000][SLP] restore 2489 c1648a00 91 2487 2483 0004000 [SLPQ wait 0xc1648a00][SLP] sh 2488 c1648800 91 2484 2483 0004000 [SLPQ biord 0xc3a27da8][SLP] dump 2487 c15e4a00 91 2484 2483 0000000 [SLPQ piperd 0xc16f1d80][SLP] sendbackup 2486 c1871c00 91 2484 2483 0004000 [SLPQ piperd 0xc16ca000][SLP] gzip 2484 c1b12000 91 1 2483 0004000 [SLPQ piperd 0xc16f1c00][SLP] sendbackup 2454 c1802a00 91 2451 2440 0000000 [SLPQ pause 0xc1802a34][SLP] dump 2453 c1b11c00 91 2451 2440 0000000 [SLPQ pipdwt 0xc16cbc00][SLP] dump 2452 c1871400 91 2451 2440 0000000 [SLPQ pause 0xc1871434][SLP] dump 2451 c1b11000 91 2445 2440 0000000 [SLPQ sbwait 0xc186b9b0][SLP] dump 2445 c1b12200 91 2441 2440 0004000 [SLPQ wait 0xc1b12200][SLP] dump 2444 c15e4200 91 2441 2440 0000000 [SLPQ pipewr 0xc16f1900][SLP] sendbackup 2443 c1645e00 91 2441 2440 0004000 [SLPQ sbwait 0xc1a7e638][SLP] gzip 2441 c1b11400 91 1 2440 0004000 [SLPQ piperd 0xc16cb600][SLP] sendbackup 1033 c186de00 1021 1032 1033 0004002 [SLPQ ttyin 0xc15b9410][SLP] zsh 1032 c186da00 1021 1030 1030 0000100 [SLPQ select 0xc075cda4][SLP] sshd 1030 c1800200 0 583 1030 0004100 [SLPQ sbwait 0xc186c480][SLP] sshd 717 c1648e00 0 1 717 0004002 [SLPQ ttyin 0xc1541010][SLP] getty 716 c1800a00 0 1 716 0004002 [SLPQ ttyin 0xc153cc10][SLP] getty 715 c1871a00 0 1 715 0004002 [SLPQ ttyin 0xc155a810][SLP] getty 714 c1800600 0 1 714 0004002 [SLPQ ttyin 0xc153b010][SLP] getty 700 c1800000 0 1 700 0000000 [SLPQ select 0xc075cda4][SLP] inetd 679 c1871600 0 1 679 0000000 [SLPQ select 0xc075cda4][SLP] moused 656 c1871e00 0 1 655 0000000 [SLPQ select 0xc075cda4][SLP] snmpd 637 c1800400 0 1 637 0000000 [SLPQ select 0xc075cda4][SLP] pptpd 607 c1645800 0 1 607 0000000 [SLPQ nanslp 0xc070faac][SLP] cron 595 c1645600 25 1 595 0000100 [SLPQ pause 0xc1645634][SLP] sendmail 589 c186d200 0 1 589 0000100 [SLPQ select 0xc075cda4][SLP] sendmail 583 c15e4600 0 1 583 0000100 [SLPQ select 0xc075cda4][SLP] sshd 565 c186d000 0 1 565 0000000 [SLPQ select 0xc075cda4][SLP] ntpd 511 c1648000 0 1 511 0000000 [SLPQ select 0xc075cda4][SLP] usbd 492 c15e4400 0 490 490 0000100 [SLPQ nfslockd 0xc07654c8][SLP] rpc.lockd 490 c15e4800 0 1 490 0000000 [SLPQ select 0xc075cda4][SLP] rpc.lockd 485 c15e5c00 0 1 485 0000000 [SLPQ select 0xc075cda4][SLP] rpc.statd 479 c1648600 0 478 478 0000000 [SLPQ - 0xc15cb800][SLP] nfsd 478 c1645a00 0 1 478 0000000 [SLPQ select 0xc075cda4][SLP] nfsd 476 c1645400 0 1 476 0000000 [SLPQ select 0xc075cda4][SLP] mountd 398 c1648400 0 1 398 0000000 [SLPQ select 0xc075cda4][SLP] ypbind 395 c1645200 0 1 395 0000000 [SLPQ select 0xc075cda4][SLP] rpcbind 362 c1648200 0 1 362 0000000 [SLPQ biord 0xc3a14508][SLP] syslogd 325 c1645000 0 1 325 0000000 [SLPQ select 0xc075cda4][SLP] devd 218 c15e4000 0 1 218 0000000 [SLPQ pause 0xc15e4034][SLP] adjkerntz 62 c15e4c00 0 0 0 0000204 [SLPQ - 0xc83cfd04][SLP] schedcpu 61 c15e4e00 0 0 0 0000204 [SLPQ - 0xc076526c][SLP] nfsiod 3 60 c15e5000 0 0 0 0000204 [SLPQ - 0xc0765268][SLP] nfsiod 2 59 c15e5200 0 0 0 0000204 [SLPQ - 0xc0765264][SLP] nfsiod 1 58 c15e5400 0 0 0 0000204 [SLPQ - 0xc0765260][SLP] nfsiod 0 57 c15e5600 0 0 0 0000204 [SLPQ syncer 0xc070f81c][SLP] syncer 56 c15e5800 0 0 0 0000204 [SLPQ vlruwt 0xc15e5800][SLP] vnlru 55 c133e400 0 0 0 0000204 [SLPQ psleep 0xc075d2ec][SLP] bufdaemon 54 c133e600 0 0 0 000020c [SLPQ pgzero 0xc076b704][SLP] pagezero 53 c133e800 0 0 0 0000204 [SLPQ psleep 0xc076b254][SLP] vmdaemon 52 c133ea00 0 0 0 0000204 [SLPQ psleep 0xc076b210][SLP] pagedaemon 51 c133ec00 0 0 0 0000204 [SLPQ m:w2 0xc15b5d00][SLP] g_mirror data 50 c133ee00 0 0 0 0000204 [IWAIT] swi0: sio 49 c13ad000 0 0 0 0000204 [SLPQ - 0xc14c5a3c][SLP] fdc0 48 c13ad200 0 0 0 0000204 [SLPQ tzpoll 0xc0882694][SLP] acpi_thermal 47 c13ad400 0 0 0 0000204 [SLPQ usbevt 0xc1525210][SLP] usb2 db> trace 362 Tracing pid 362 tid 100081 td 0xc15e7c00 sched_switch(c15e7c00,0,1) at sched_switch+0x177 mi_switch(1,0) at mi_switch+0x270 sleepq_switch(c3a14508,cc6b99dc,c050da15,c3a14508,0) at sleepq_switch+0xe0 sleepq_wait(c3a14508,0,0,c06aec19,e52) at sleepq_wait+0x30 msleep(c3a14508,c075d3c0,4c,c06af341,0) at msleep+0x311 bwait(c3a14508,4c,c06af341) at bwait+0x47 bufwait(c3a14508,1,0,0,c16b2000) at bufwait+0x1a breadn(c1adedd0,0,0,800,0) at breadn+0x266 bread(c1adedd0,0,0,800,0) at bread+0x20 ffs_balloc_ufs2(c1adedd0,4f,0,57,c12f5a00) at ffs_balloc_ufs2+0xcbf ffs_write(cc6b9c40,c1a4a510,c1adedd0,cc6b9c8c,c0565fd6) at ffs_write+0x2b4 VOP_WRITE_APV(c06f7600,cc6b9c40) at VOP_WRITE_APV+0x9b vn_write(c1a4a510,c1bac100,c12f5a00,0,c15e7c00) at vn_write+0x1ea kern_writev(c15e7c00,8,c1bac100,c1bac100,0) at kern_writev+0x8e writev(c15e7c00,cc6b9d04,3,39,292) at writev+0x30 syscall(3b,3b,3b,8054cde,bfbfde70) at syscall+0x22f Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (121, FreeBSD ELF32, writev), eip = 0x280c9563, esp = 0xbfbfd8ac, ebp = 0xbfbfde98 --- db> trace 2451 Tracing pid 2451 tid 100120 td 0xc1803600 sched_switch(c1803600,0,1) at sched_switch+0x177 mi_switch(1,0) at mi_switch+0x270 sleepq_switch(c186b9b0,0,ccb6dbb4,c050da06,c186b9b0) at sleepq_switch+0xe0 sleepq_wait_sig(c186b9b0,0,100,c06adec5,3f1) at sleepq_wait_sig+0xc msleep(c186b9b0,c186b97c,158,c06ae15c,0) at msleep+0x302 sbwait(c186b964,c070f180,2,4,0) at sbwait+0x4b soreceive(c186b914,0,ccb6dc78,0,0) at soreceive+0x2da soo_read(c1a4a318,ccb6dc78,c1b01380,0,c1803600) at soo_read+0x41 dofileread(c1803600,c1a4a318,12,bfbee028,4) at dofileread+0xad read(c1803600,ccb6dd04,3,449,292) at read+0x3b syscall(3b,3b,bfbe003b,12,bfbee028) at syscall+0x22f Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (3, FreeBSD ELF32, read), eip = 0x280c1e83, esp = 0xbfbedfdc, ebp = 0xbfbee008 --- -- Jun Kuriyama <kuriyama_at_imgsrc.co.jp> // IMG SRC, Inc. <kuriyama_at_FreeBSD.org> // FreeBSD ProjectReceived on Tue Jun 14 2005 - 12:10:27 UTC
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