Syncing disks (again)

[Jean-Marc Zucconi]

Hi,

This time I was able to interrupt and enter the debugger when it
happened: 

syncing disks... 4 4 4 4 4 4 4 4 4 
CPU1 stopping CPUs: 0x00000001
 stopped
Stopped at      siointr1+0xf2:  movl    $0,brk_state2.772
db> trace
siointr1(0,2710,20f0f0c,0,c7b9bb61) at siointr1+0xf2
gd_reqflags(181,b,0,0,12c) at 0x39
db> ps
  pid   proc     addr    uid  ppid  pgrp  flag stat wmesg   wchan   cmd
17843 c60c5680 c7b9bda0    0     1 17843 404006  2                  reboot
    1 c60c7e60 c60d2da0    0     0     1 404284  3    wait c60c7e60 init
    0 c03c8060 c0479da0    0     0     0 400204  3   sched c03c8060 swapper
cpu 0 tdrunqmask 10014000 curthread 0xff8002a0 reqflags 0012
  tdq     thread    pid flags  pri(act)        sp    wmesg comm
   14 0xc03a9780  -1 00010c02 110( 14) 0xc6625d24        - ithread 24
   16 0xc03a9bd0  -1 00010c02 112( 16) 0xc4e69d24        - ithread 30
   28 0xc03a9050  -1 00010c02 124( 28) 0xc657cd24        - ithread 14

  tdq     thread    pid flags  pri(act)        sp    wmesg comm
   32 0xff8002a0  -1 00000001  12( 12) 0xff807d4c        - idle_0
   32 0xc03c7f80   0 00000000  76( 12) 0xc0479cf4    sched swapper
   32 0xc03a9a60  -1 00010c00 110( 14) 0xc4e66d88        - ithread 28
   32 0xc03a9bd0  -1 00010c02 112( 16) 0xc4e69d24        - ithread 30
   32 0xff8001e8  -1 00000c00  44( 12) 0xc4e6dd44        - usched 0
   32 0xc60cfe00  -1 00000e00  76( 12) 0xc64dcd04    tqthr taskqueue
   32 0xc03a98f0  -1 00010c00 110( 14) 0xc64dfd88        - ithread 26
   32 0xc03a99a8  -1 00010c00 110( 14) 0xc6572d24        - ithread 27
   32 0xc03a9b18  -1 00010c00 110( 14) 0xc6575d88        - ithread 29
   32 0xc03a9050  -1 00010c02 124( 28) 0xc657cd24        - ithread 14
   32 0xc03a9108  -1 00010c00 124( 28) 0xc65c3d88        - ithread 15
   32 0xc03a8ee0  -1 00010c00 124( 28) 0xc65c6d24        - ithread 12
   32 0xc60cfd40  -1 00000e00  76( 12) 0xc65cfd00   usbevt usb0
   32 0xc60cfc80  -1 00000e00  76( 12) 0xc65d2d00   usbtsk usbtask
   32 0xc03a8d70  -1 00010c00 124( 28) 0xc65dcd24        - ithread 10
   32 0xc03a8a90  -1 00010c00 124( 28) 0xc65dfd24        - ithread 6
   32 0xc03a9780  -1 00010c02 110( 14) 0xc6625d24        - ithread 24
   32 0xc03a8920  -1 00010c00 124( 28) 0xc6628d88        - ithread 4
   32 0xc03a8868  -1 00010c00 124( 28) 0xc662bd88        - ithread 3
   32 0xc03a8b48  -1 00010c00 124( 28) 0xc662ed88        - ithread 7
   32 0xc03a8640  -1 00010c00 124( 28) 0xc66d4d88        - ithread 0
   32 0xc03a8c00  -1 00010c00 124( 28) 0xc66d7d88        - ithread 8
   32 0xc03c8d80  -1 00000c00  76( 12) 0xc6703d30        - netisr_cpu 0
   32 0xc03b0120  -1 00000c00  76( 12) 0xc6b11d30        - udp_thread 0
   32 0xc03af5a0  -1 00000c00  76( 12) 0xc738ad30        - tcp_thread 0
   32 0xc60cfbc0  -1 00000e00  76( 12) 0xc759dd00   psleep pagedaemon
   32 0xc60cfb00  -1 00000e00  76( 12) 0xc7602d00   psleep vmdaemon
   32 0xc60cfa40  -1 00000e00  76( 12) 0xc7605cf4   kpsusp bufdaemon
   32 0xc60cf980  -1 00000e00  76( 12) 0xc7608ce8   kpsusp vnlru
   32 0xc60cf8c0  -1 00000e00  76( 12) 0xc760bcc4   kpsusp syncer
cpu 1 tdrunqmask 00000400 curthread 0xc60ce240 reqflags 0013
  tdq     thread    pid flags  pri(act)        sp    wmesg comm
   10 0xc60ce240 17843 00000603  42( 10) 0xc7b9bb38   suspkp reboot

  tdq     thread    pid flags  pri(act)        sp    wmesg comm
   32 0xff8082a0  -1 00000000  44( 12) 0xff80fd4c        - idle_1
   32 0xc03c8e38  -1 00000c00  76( 12) 0xc6706d30        - netisr_cpu 1
   32 0xc03b01d8  -1 00000c00  76( 12) 0xc6b14d30        - udp_thread 1
   32 0xc03af658  -1 00000c00  76( 12) 0xc738dd30        - tcp_thread 1
   32 0xff8081e8  -1 00000c00  44( 12) 0xc7594d44        - usched 1
CURCPU 1 CURTHREAD 0xc60ce240 (17843)
db> 

Jean-Marc

-- 
Jean-Marc Zucconi -- PGP Key: finger jmz at xxxxxxxxxxx [KeyID: 400B38E9]