On Wed, 10 Feb 2016, John D. Baker wrote: > On Wed, 10 Feb 2016 18:43:38 +0000 (UTC), chris...@astron.com (Christos > Zoulas) wrote: > > > Unfortunately looks like you'll have to reboot and redo the test to > > answer this. > > To make it unambiguous, I'll definitely arrange to do this again.
OK, on the same system, still up and no pending shutdown. The specific scenario was that during 'cvs update' on the file server, I switched desktop pages (fvwm2) to where my login to the file server was. When I switched back to the page where 'firefox' had its window, it did not repaint its window after a substantial interval (and will never again do so while the system is up). There are fewer LWPs in "tstile" as I didn't attempt any other operations as soon as it was apparent that 'firefox' (and thus 'amd') had hung. I simply 'ssh'ed in as another user whose home directory is not managed by 'amd' and initiated 'crash'. Crash version 7.0_STABLE, image version 7.0_STABLE. Output from a running system is unreliable. crash> ps PID LID S CPU FLAGS STRUCT LWP * NAME WAIT 2927 > 1 7 0 0 c1c05540 crash 2641 1 3 0 80 c2ac4020 sudo select 2626 1 3 0 80 c2ae4540 ksh pause 1227 1 2 0 0 c2ac42c0 sshd 2664 1 3 0 80 c2cf5800 sshd select 3269 1 3 0 0 c2ae4000 amd tstile 2795 1 3 0 80 c2a21a80 pickup kqueue 177 509 5 0 0 c2ac4560 (zombie) 177 223 3 0 80 c2ae4a80 mozStorage #8 parked 177 85 3 0 80 c2a112c0 mozStorage #7 parked 177 77 3 0 80 c2a11560 DOM Worker parked 177 69 3 0 80 c299a2c0 mozStorage #6 parked 177 64 3 0 80 c2ae4d20 mozStorage #5 parked 177 59 3 0 80 c2ac4800 localStorage DB parked 177 58 3 0 80 c2ac4aa0 mozStorage #4 parked 177 57 3 0 80 c2ac4d40 mozStorage #3 parked 177 56 3 0 80 c2a21000 mozStorage #2 parked 177 55 3 0 80 c2a212a0 URL Classifier parked 177 54 3 0 80 c2a21540 Cache I/O parked 177 51 3 0 80 c2a217e0 mozStorage #1 parked 177 46 3 0 80 c2a11020 Proxy Resolutio parked 177 43 3 0 80 c2a21d20 DOM Worker parked 177 28 3 0 80 c2a11800 HTML5 Parser parked 177 27 3 0 0 c2a11aa0 DOM Worker tstile 177 26 3 0 80 c2a11d40 IPDL Background parked 177 25 3 0 80 c29ed000 Cert Verify parked 177 24 3 0 80 c29ed2a0 firefox parked 177 23 3 0 80 c29ed540 SoftwareVsyncTh parked 177 22 3 0 80 c29ed7e0 ImageIO parked 177 21 3 0 80 c29eda80 ImgDecoder #1 parked 177 20 3 0 80 c29edd20 ImageBridgeChil parked 177 19 3 0 80 c1ce3d40 Compositor parked 177 18 3 0 80 c299a020 GMPThread parked 177 16 3 0 80 c299a560 Cache2 I/O parked 177 15 3 0 80 c299a800 firefox kqueue 177 14 3 0 80 c299aaa0 firefox select 177 13 3 0 80 c299ad40 Timer parked 177 12 3 0 80 c298a000 BgHangManager parked 177 11 3 0 80 c298a2a0 Hang Monitor parked 177 10 3 0 80 c298a540 JS Watchdog parked 177 9 3 0 80 c298a7e0 JS Helper parked 177 8 3 0 80 c298aa80 JS Helper parked 177 7 3 0 80 c298ad20 JS Helper parked 177 6 3 0 80 c1ce3020 JS Helper parked 177 5 3 0 80 c1ce32c0 JS Helper parked 177 4 3 0 80 c1ce3560 firefox parked 177 3 3 0 80 c1854540 Socket Thread select 177 2 3 0 80 c18302c0 Gecko_IOThread kqueue 177 1 3 0 0 c18afd40 firefox netio 891 1 3 0 80 c1ce3800 ksh pause 890 1 3 0 80 c1c05a80 sshd select 310 1 3 0 80 c1854d20 sshd select 676 1 3 0 80 c1ce3aa0 xconsole select 41 1 3 0 80 c1830aa0 xdm select 743 1 3 0 80 c1806000 getty ttyraw 795 1 3 0 80 c1830800 getty ttyraw 895 1 3 0 80 c1830d40 getty ttyraw 580 1 3 0 80 c1806d20 getty ttyraw 1091 1 3 0 80 c1c057e0 cron nanoslp 1037 1 3 0 80 c1c05000 inetd kqueue 984 1 3 0 80 c1c052a0 qmgr kqueue 989 1 3 0 80 c1830020 master kqueue 549 1 3 0 80 c1c05d20 sshd select 494 1 3 0 80 c18af020 powerd kqueue 358 1 3 0 80 c18af2c0 ntpd pause 377 1 3 0 80 c18afaa0 Xorg select 339 1 3 0 80 c18af800 lpd select 466 1 3 0 80 c18af560 xdm pause 247 1 3 0 80 c18547e0 amd select 271 1 3 0 80 c1854000 rpcbind select 268 1 3 0 80 c18542a0 syslogd kqueue 214 1 3 0 80 c1854a80 dhcpcd select 1 1 3 0 80 c1695540 init wait 0 55 3 0 200 c2cf52c0 physiod physiod 0 54 3 0 200 c1830560 nfskqpoll nfskqpw 0 53 3 0 200 c1806a80 swapiod swapiod 0 51 3 0 200 c18062a0 aiodoned aiodoned 0 50 3 0 200 c1806540 ioflush tstile 0 49 3 0 200 c18067e0 pgdaemon pgdaemon 0 46 3 0 200 c16fd020 nfsio nfsiod 0 45 3 0 200 c16fd2c0 nfsio nfsiod 0 44 3 0 200 c16fd560 nfsio nfsiod 0 43 3 0 200 c16fd800 nfsio nfsiod 0 42 3 0 200 c1695a80 pfpurge pftm 0 41 3 0 200 c16fdaa0 atapibus0 sccomp 0 38 3 0 200 c1695d20 usb3 usbevt 0 37 3 0 200 c1503020 usb2 usbevt 0 36 3 0 200 c15032c0 usb1 usbevt 0 35 3 0 200 c16fdd40 usb0 usbevt 0 34 3 0 200 c16957e0 cryptoret crypto_w 0 33 3 0 200 c16952a0 unpgc unpgc 0 32 3 0 200 c1695000 vmem_rehash vmem_rehash 0 23 3 0 200 c1503560 atabus1 atath 0 22 3 0 200 c1503800 atabus0 atath 0 21 3 0 280 c1503aa0 fw0probe ieee1394 0 20 3 0 200 c1503d40 usbtask-dr usbtsk 0 19 3 0 200 c14d7000 usbtask-hc usbtsk 0 18 3 0 200 c14d72a0 pms0 pmsreset 0 17 3 0 200 c14d7540 apm0 apmev 0 16 3 0 200 c14d77e0 sysmon smtaskq 0 15 3 0 200 c14d7a80 pmfsuspend pmfsuspend 0 14 3 0 200 c14d7d20 pmfevent pmfevent 0 13 3 0 200 c1389020 sopendfree sopendfr 0 12 3 0 200 c13892c0 nfssilly nfssilly 0 11 3 0 200 c1389560 cachegc cachegc 0 10 3 0 200 c1389800 vrele vrele 0 9 3 0 200 c1389aa0 vdrain vdrain 0 8 3 0 200 c1389d40 modunload mod_unld 0 7 3 0 200 c1381000 xcall/0 xcall 0 6 1 0 200 c13812a0 softser/0 0 5 1 0 200 c1381540 softclk/0 0 4 1 0 200 c13817e0 softbio/0 0 3 1 0 200 c1381a80 softnet/0 0 2 1 0 201 c1381d20 idle/0 0 1 3 0 200 c0833f60 swapper uvm crash> show proc/a c2ae4000 lwp_t c2ae4000 amd: pid 3269 proc c16f1360 vmspace/map c16f691c flags 0 lwp 1 c2ae4000 pcb d87a8000 stat 3 flags 0 cpu 0 pri 43 wmesg tstile wchan c1f0315c crash> bt/a c2ae4000 trace: pid 3269 lid 1 at 0xd87a9d10 sleepq_block(0,0,c073bc98,c083463c,40,c1374301,c2ae4000,0,0,c1f0315c) at sleepq_ block+0x8f turnstile_block(0,1,c1f0315c,c083463c,c084cb34,d87a9da0,1,0,0,0) at turnstile_bl ock+0x1f8 rw_vector_enter(c1f0315c,1,1,0,c1f0315c,c1f030b8,c1f030b8,d87a9e4c,d87a9dfc,c05a 8f9e) at rw_vector_enter+0x128 genfs_lock(d87a9dec,ffffffff,c1fe02c8,c070c6ec,c1f030b8,2,2,d87a9e14,c0599e74,c1 f030b8) at genfs_lock+0x87 VOP_LOCK(c1f030b8,2,c1f030b8,c1f030b8,d87a9e2c,c0598cff,c1f030b8,2,85e754,c1f030 b8) at VOP_LOCK+0x50 vn_lock(c1f030b8,2,85e754,c1f030b8,d87a9e60,c058d541,c1f030b8,c058cc40,d87a9e4c, 1b) at vn_lock+0x1a vrecycle(c1f030b8,c058cc40,d87a9e4c,1b,0,c2914848,c29148f8,0,c1efee00,c29148f8) a t vrecycle+0x1b vflush(c1b54000,c29148f8,0,c1b54000,c2ae4000,c1b54000,c1b54024,0,d87a9e9c,c058ff a8) at vflush+0x8d nfs_unmount(c1b54000,0,c1b54000,d87a9ed0,c058dba4,c1b54000,0,c137af00,0,8) at nf s_unmount+0xd0 VFS_UNMOUNT(c1b54000,0,c137af00,0,8,8,c1b54900,1,d87a9f68,c1b54000) at VFS_UNMOU NT+0x26 dounmount(c1b54000,0,c2ae4000,c1b54000,0,0,0,c2978220,0,c2978220) at dounmount+0 xb3 sys_unmount(c2ae4000,d87a9f68,d87a9f60,c0832048,d87a9f68,0,0,bb609400,0,200246) a t sys_unmount+0x149 syscall() at syscall+0x7f --- syscall (number 22) --- bba39c37: crash> show proc/a c2a11aa0 lwp_t c2a11aa0 firefox: pid 177 proc c1852364 vmspace/map c1904778 flags 4001 lwp 27 [DOM Worker] c2a11aa0 pcb da356000 stat 3 flags 0 cpu 0 pri 43 wmesg tstile wchan c1b54024 lwp 26 [IPDL Background] c2a11d40 pcb da354000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 6e7d8230 lwp 25 [Cert Verify] c29ed000 pcb da352000 stat 3 flags 80 cpu 0 pri 42 wmesg parked wchan 6f834c94 lwp 24 c29ed2a0 pcb da350000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 6f834db0 lwp 23 [SoftwareVsyncTh] c29ed540 pcb da32e000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 6fda9d48 lwp 22 [ImageIO] c29ed7e0 pcb da32c000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 6f779210 lwp 21 [ImgDecoder #1] c29eda80 pcb da32a000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 6f778cf4 lwp 20 [ImageBridgeChil] c29edd20 pcb da328000 stat 3 flags 80 cpu 0 pri 42 wmesg parked wchan 6f3acd48 lwp 19 [Compositor] c1ce3d40 pcb d87ae000 stat 3 flags 80 cpu 0 pri 42 wmesg parked wchan 6f5add48 lwp 18 [GMPThread] c299a020 pcb da326000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 6e5ee050 lwp 16 [Cache2 I/O] c299a560 pcb da322000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 70a3d4b4 lwp 15 c299a800 pcb da320000 stat 3 flags 80 cpu 0 pri 43 wmesg kqueue wchan c291ac14 lwp 14 c299aaa0 pcb da31e000 stat 3 flags 80 cpu 0 pri 43 wmesg select wchan c1368c80 lwp 13 [Timer] c299ad40 pcb da318000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 7a04f2b4 lwp 12 [BgHangManager] c298a000 pcb da312000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 726d8334 lwp 11 [Hang Monitor] c298a2a0 pcb d9fee000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 726dbc94 lwp 10 [JS Watchdog] c298a540 pcb da310000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 7a0fac34 lwp 9 [JS Helper] c298a7e0 pcb da30e000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 7a04f194 lwp 8 [JS Helper] c298aa80 pcb da30c000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 7a04f194 lwp 7 [JS Helper] c298ad20 pcb da30a000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 7a04f194 lwp 6 [JS Helper] c1ce3020 pcb da308000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 7a04f194 lwp 5 [JS Helper] c1ce32c0 pcb da306000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 7a04f194 lwp 4 c1ce3560 pcb da304000 stat 3 flags 80 cpu 0 pri 43 wmesg parked wchan 7a0f5af4 lwp 3 [Socket Thread] c1854540 pcb d86ab000 stat 3 flags 80 cpu 0 pri 43 wmesg select wchan c1368c80 lwp 2 [Gecko_IOThread] c18302c0 pcb d869d000 stat 3 flags 80 cpu 0 pri 43 wmesg kqueue wchan c291ada4 lwp 1 c18afd40 pcb d86da000 stat 3 flags 0 cpu 0 pri 43 wmesg netio wchan c1afb0ec crash> bt/a c2a11aa0 trace: pid 177 lid 27 at 0xda357bf0 sleepq_block(0,0,c073bc98,c0834220,40,c1374d01,c2a11aa0,c2ae4000,0,c1b54024) at s leepq_block+0x8f turnstile_block(0,1,c1b54024,c0834220,58,eb80,0,0,0,0) at turnstile_block+0x1f8 mutex_vector_enter(c1b54024,0,c1b54000,1c,da357ce0,c059904a,c1b54000,0,c291d050, da357ce8) at mutex_vector_enter+0x206 vfs_busy(c1b54000,0,c291d050,da357ce8,da357ed4,10c,40,da357cb4,784ad73,da357cb8) at vfs_busy+0x17 vcache_get(c1b54000,c291d06c,1c,da357cfc,da357ed4,0,da357da4,c03cb03f,c1b54000,c 291d06c) at vcache_get+0x1a0 nfs_nget1(c1b54000,c291d06c,1c,da357d80,0,da357d70,da357d74,da357d68,0,0) at nfs _nget1+0x26 nfs_create(da357db8,c058c79a,0,c070cb3c,c1f030b8,da357ec0,da357ed4,da357df4,da35 7eac,da357e88) at nfs_create+0xb9c VOP_CREATE(c1f030b8,da357ec0,da357ed4,da357df4,0,200,c1da76c0,1,180,ffffffff) at VOP_CREATE+0x56 vn_open(da357eac,60a,180,c2a11aa0,180,c2aea800,38,0,c1719950,c2954400) at vn_ope n+0x3b9 do_open(c2a11aa0,0,c1719950,609,180,da357f40,0,c1719950,c2a11aa0,da357fa8) at do _open+0xb5 do_sys_openat(609,180,da357f40,da357fa8,da357f9c,c04d4b3f,c2a11aa0,da357f68,da35 7f60,c0831f7c) at do_sys_openat+0x6f sys_open(c2a11aa0,da357f68,da357f60,c0831f7c,da357f68,0,0,8c083dd0,609,180) at s ys_open+0x2c syscall() at syscall+0x7f --- syscall (number 5) --- bb973957: crash> show proc/a c1806540 lwp_t c1806540 system: pid 0 proc c08342a0 vmspace/map c0847760 flags 20002 lwp 50 [ioflush] c1806540 pcb d8647000 stat 3 flags 200 cpu 0 pri 124 wmesg tstile wchan c087d384 lwp 49 [pgdaemon] c18067e0 pcb d8645000 stat 3 flags 200 cpu 0 pri 126 wmesg pgdaemon wchan c0880df4 lwp 46 [nfsio] c16fd020 pcb d863f000 stat 3 flags 200 cpu 0 pri 96 wmesg nfsiod wchan c14d525c lwp 45 [nfsio] c16fd2c0 pcb d863d000 stat 3 flags 200 cpu 0 pri 96 wmesg nfsiod wchan c14d51e4 lwp 44 [nfsio] c16fd560 pcb d863b000 stat 3 flags 200 cpu 0 pri 96 wmesg nfsiod wchan c14d52ac lwp 43 [nfsio] c16fd800 pcb d85fc000 stat 3 flags 200 cpu 0 pri 96 wmesg nfsiod wchan c14d52d4 lwp 42 [pfpurge] c1695a80 pcb d8639000 stat 3 flags 200 cpu 0 pri 96 wmesg pftm wchan c03fe9e2 lwp 41 [atapibus0] c16fdaa0 pcb d85fa000 stat 3 flags 200 cpu 0 pri 96 wmesg sccomp wchan c1626328 lwp 38 [usb3] c1695d20 pcb d85f8000 stat 3 flags 200 cpu 0 pri 96 wmesg usbevt wchan c1690218 lwp 37 [usb2] c1503020 pcb d85f6000 stat 3 flags 200 cpu 0 pri 96 wmesg usbevt wchan c14f8234 lwp 36 [usb1] c15032c0 pcb d8635000 stat 3 flags 200 cpu 0 pri 96 wmesg usbevt wchan c1504218 lwp 35 [usb0] c16fdd40 pcb d8633000 stat 3 flags 200 cpu 0 pri 96 wmesg usbevt wchan c1500218 lwp 34 [cryptoret] c16957e0 pcb d85fe000 stat 3 flags 200 cpu 0 pri 96 wmesg crypto_w wchan c0840edc lwp 33 [unpgc] c16952a0 pcb d8604000 stat 3 flags 200 cpu 0 pri 96 wmesg unpgc wchan c08800e4 lwp 32 [vmem_rehash] c1695000 pcb d8602000 stat 3 flags 200 cpu 0 pri 125 wmesg vmem_rehash wchan c14d0944 lwp 23 [atabus1] c1503560 pcb d7da8000 stat 3 flags 200 cpu 0 pri 96 wmesg atath wchan c1626344 lwp 22 [atabus0] c1503800 pcb d7da6000 stat 3 flags 200 cpu 0 pri 96 wmesg atath wchan c16261e4 lwp 21 [fw0probe] c1503aa0 pcb d7c92000 stat 3 flags 280 cpu 0 pri 96 wmesg ieee1394 wchan c15e3470 lwp 20 [usbtask-dr] c1503d40 pcb d796d000 stat 3 flags 200 cpu 0 pri 96 wmesg usbtsk wchan c08801cc lwp 19 [usbtask-hc] c14d7000 pcb d796b000 stat 3 flags 200 cpu 0 pri 96 wmesg usbtsk wchan c08801ac lwp 18 [pms0] c14d72a0 pcb d777d000 stat 3 flags 200 cpu 0 pri 96 wmesg pmsreset wchan c14f6e7c lwp 17 [apm0] c14d7540 pcb d777b000 stat 3 flags 200 cpu 0 pri 96 wmesg apmev wchan c14fbc40 lwp 16 [sysmon] c14d77e0 pcb d7966000 stat 3 flags 200 cpu 0 pri 96 wmesg smtaskq wchan c087e12c lwp 15 [pmfsuspend] c14d7a80 pcb d7964000 stat 3 flags 200 cpu 0 pri 43 wmesg pmfsuspend wchan c14d0dc4 lwp 14 [pmfevent] c14d7d20 pcb d7962000 stat 3 flags 200 cpu 0 pri 43 wmesg pmfevent wchan c14d0e84 lwp 13 [sopendfree] c1389020 pcb d7960000 stat 3 flags 200 cpu 0 pri 96 wmesg sopendfr wchan c088009c lwp 12 [nfssilly] c13892c0 pcb d795e000 stat 3 flags 200 cpu 0 pri 43 wmesg nfssilly wchan c14d0f44 lwp 11 [cachegc] c1389560 pcb d795c000 stat 3 flags 200 cpu 0 pri 125 wmesg cachegc wchan c1389560 lwp 10 [vrele] c1389800 pcb d795a000 stat 3 flags 200 cpu 0 pri 125 wmesg vrele wchan c083f540 lwp 9 [vdrain] c1389aa0 pcb d7958000 stat 3 flags 200 cpu 0 pri 125 wmesg vdrain wchan c083f600 lwp 8 [modunload] c1389d40 pcb d7956000 stat 3 flags 200 cpu 0 pri 125 wmesg mod_unld wchan c0846d64 lwp 7 [xcall/0] c1381000 pcb d7954000 stat 3 flags 200 cpu 0 pri 127 wmesg xcall wchan c082ebf0 lwp 6 [softser/0] c13812a0 pcb d7952000 stat 1 flags 200 cpu 0 pri 223 lwp 5 [softclk/0] c1381540 pcb d7950000 stat 1 flags 200 cpu 0 pri 220 lwp 4 [softbio/0] c13817e0 pcb d78ce000 stat 1 flags 200 cpu 0 pri 221 lwp 3 [softnet/0] c1381a80 pcb d78cc000 stat 1 flags 200 cpu 0 pri 222 lwp 2 [idle/0] c1381d20 pcb d78c8000 stat 1 flags 201 cpu 0 pri 0 lwp 1 [swapper] c0833f60 pcb c09a5000 stat 3 flags 200 cpu 0 pri 125 wmesg uvm wchan c0833f60 crash> bt/a c1806540 trace: pid 0 lid 50 at 0xd8648ec8 sleepq_block(0,0,c073bc98,c0834220,40,c1374d01,c1806540,c2ae4000,0,c087d384) at s leepq_block+0x8f turnstile_block(0,1,c087d384,c0834220,c1806540,c087d390,0,0,0,0) at turnstile_bl ock+0x1f8 mutex_vector_enter(c087d384,0,64,c087d390,0,0,0,56bcf672,0,c1806540) at mutex_ve ctor_enter+0x206 sched_sync(c1806540,9a4000,9ab000,0,c0100304,0,0,0,0,0) at sched_sync+0x15 -- |/"\ John D. 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