Date: Wed, 10 Jul 1996 18:50:57 +0200 From: Heiko Blume <src@NS.Contrib.Com> To: stable@FreeBSD.ORG Subject: bottom half hung? Message-ID: <199607101650.SAA16972@NS.Contrib.Com>
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damn, i hate this machine...when expiring news
started today it wnet into semi-hung state again.
ping works, telnet gets connected but no login prompt,
no activity otherwise, AFAICT remotely.
i could still break into DDB, however, but i didn't
know what to look for :-( below is what i got.
call boot(0) said it synched the disks, but
it did not reboot. i'll use reset_cpu() next time.
*sigh*, hb
Debugger("serial console break")
Stopped at _Debugger+0x2b: movb $0,_in_Debugger.110
db> trac
_Debugger(f01acd04) at _Debugger+0x2b
_siointr1(f0e03800,efbffef8,f018edc7,0,10) at _siointr1+0x6f
_siointr(0,10,b,f108cd6c,2798000) at _siointr+0x12
_Xfastintr4(2798000) at _Xfastintr4+0x17
_vm_pageout_scan(7fffffff,286b,efbfff7c,f010bda7,f010b8eb) at _vm_pageout_scan+0x146
_vm_pageout(f010b8eb,f0e077cb,b,1eff24,1fc000) at _vm_pageout+0x1b8
_main(efbfff88,3000,3000000,f0191eca,f01003bc,f01f0138,17,30,1eff24,1fc000,1fc000,0,21f80407) at _main+0x46f
begin() at begin+0x59
db> show all procs
pid proc addr uid ppid pgrp flag stat wmesg wchan cmd
17768 f0f47600 3192875f 8 17725 16656 000004 1 sh
17767 f0e4d900 f52f9000 8 175 5 004004 3 vmwait f01d214c in.nnrpd
17766 f0f2e500 f52ff000 8 175 5 004080 2 in.nnrpd
17764 f0f82e00 f52fd000 8 175 5 004080 2 in.nnrpd
17763 f1091f00 f52fb000 8 175 5 004080 2 in.nnrpd
17727 f0fb7f00 f52f7000 8 175 5 004080 2 in.nnrpd
17726 f0f20700 f52f5000 8 175 5 004080 2 in.nnrpd
17725 f10e9900 f52cb000 8 16660 16656 00c004 3 vmwait f01d214c sh
17724 f0fb6800 f52c1000 8 175 5 004080 2 in.nnrpd
17564 f0eb9d00 f52f3000 8 175 5 004080 2 in.nnrpd
17563 f1058c00 f52f1000 8 175 5 004080 2 in.nnrpd
17562 f0ea5400 f52ef000 8 175 5 004080 2 in.nnrpd
17553 f0e6a900 f52ed000 8 175 5 004080 3 select f01c7780 in.nnrpd
17551 f0f27800 f52eb000 8 175 5 004080 2 in.nnrpd
17405 f0fc3500 f52e3000 8 175 5 004080 2 in.nnrpd
17404 f0e5e600 f52e1000 8 175 5 004080 3 select f01c7780 in.nnrpd
17403 f0fe5200 f52c9000 8 175 5 004080 2 in.nnrpd
17402 f0eb4200 f52c7000 8 175 5 004080 3 select f01c7780 in.nnrpd
17250 f0f9de00 f52df000 8 175 5 004080 3 select f01c7780 in.nnrpd
17249 f0f84a00 f52db000 8 175 5 004080 3 select f01c7780 in.nnrpd
17248 f1094400 f52d9000 8 175 5 004080 3 select f01c7780 in.nnrpd
17079 f0e67100 f52d7000 66 17078 17073 004080 3 netio f0f9d954 gunzip
17078 f1050400 f52d3000 66 17077 17073 004080 3 wait f1050400 sh
17077 f0e9d500 f52cf000 66 17074 17073 004180 3 netio f0f92230 rnews
17074 f0e67d00 f52e9000 66 17073 17073 004180 3 wait f0e67d00 uuxqt
17073 f0ea1d00 f52e7000 66 17069 17073 004080 3 wait f0ea1d00 sh
17069 f0ed4500 f52d1000 0 103 103 000080 3 netio f0eb4930 cron
16660 f109ef00 f52e5000 8 16656 16656 004080 3 wait f109ef00 sh
16656 f1098c00 f52dd000 8 16652 16656 004080 3 wait f1098c00 sh
16652 f108b700 f52d5000 0 103 103 000080 3 netio f0e9a530 cron
16645 f108e300 f52ab000 8 175 5 004080 3 select f01c7780 in.nnrpd
16387 f0e58a00 f52cd000 8 175 5 004080 3 netio f109a530 overchan
175 f0e14200 f52c5000 8 1 5 000004 3 vmwait f01d214c innd
165 f0e87a00 f52c3000 0 1 1 004080 3 siodcd f01c6c74 getty
164 f0e7f200 f52ad000 0 1 164 004082 2 getty
109 f0e82800 f52bf000 0 1 109 000080 2 sendmail
106 f0e7f900 f52bd000 0 1 106 000080 3 select f01c7780 lpd
103 f0e7d000 f52bb000 0 1 103 000080 2 cron
96 f0e46700 f52b9000 0 1 96 000080 2 inetd
86 f0e46500 f52b7000 1 1 86 000180 3 select f01c7780 portmap
82 f0e41700 f52b5000 0 1 82 000004 3 vmwait f01d214c xntpd
74 f0e41600 f52b1000 0 1 74 000004 3 vmwait f01d214c syslogd
57 f0e34000 f52b3000 0 1 57 000004 3 vmwait f01d214c routed
32 f0e22100 f52af000 0 1 32 000080 3 pause f52af15c adjkerntz
4 f0e07300 f52a9000 0 0 0 000204 3 update f01cc2b8 update
3 f0e07500 f52a7000 0 0 0 000204 3 psleep f01c7904 vmdaemon
2 f0e07700 f52a5000 0 0 0 000204 2 pagedaemon
1 f0e07900 f52a3000 0 0 1 004080 3 wait f0e07900 init
0 f01cb010 f01f0000 0 0 0 000204 3 vmwait f01d214c swapper
db> sh r
cs 0x8
ds 0x10
es 0x10
ss 0x10
eax 0xffffffff _APTD+0xfff
ecx 0x3f9
edx 0xf018e4e5 _db_write_bytes+0xd9
ebx 0xf0e03800
esp 0xefbffe94 _kstack+0x1e94
ebp 0xefbffe9c _kstack+0x1e9c
esi 0
edi 0xf027d17c
eip 0xf018e513 _Debugger+0x2b
efl 0x46
_Debugger+0x2b: movb $0,_in_Debugger.110
db> sh map
Task map 0xf018e513: pmap=0x57e005c6,ref=-581559,nentries=74055786,version=-1010237440
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x7864650c
fault code = supervisor read, page not present
instruction pointer = 0x8:0xf0184aac
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = resume, IOPL = 0
current process = 2 (pagedaemon)
interrupt mask =
kernel: type 12 trap, code=0
Stopped at _vm_map_print+0x60: pushl 0xc(%ebx)
db> sh o
Object 0xf0184aac: size=0xb60f501a, res=-113510424, ref=1750079811, pager=0x10c483ff+0x1c7b83, shadow=(0xf8680d74)+0xe8f01849
cache: next=0x1bcf5085, prev=0x43b60ff0
db> tr
_vm_map_print(f018e513,0,ffffffff,efbffd5c,0) at _vm_map_print+0x60
_db_command(f01b8af4,f01b8954,f010126a) at _db_command+0x1b6
_db_command_loop(efbffe58,0,efbffe18,f018e2ea,3) at _db_command_loop+0x5d
_db_trap(3,0,1,0,f0e07700) at _db_trap+0xb0
_kdb_trap(3,0,efbffe58) at _kdb_trap+0x9a
_trap(10,10,f027d17c,0,efbffe9c) at _trap+0x358
calltrap() at calltrap+0x15
--- trap 3, eip = 0xf018e513, ebp = 0xefbffe9c ---
_Debugger(f01acd04) at _Debugger+0x2b
_siointr1(f0e03800,efbffef8,f018edc7,0,10) at _siointr1+0x6f
_siointr(0,10,b,f108cd6c,2798000) at _siointr+0x12
_Xfastintr4(2798000) at _Xfastintr4+0x17
_vm_pageout_scan(7fffffff,286b,efbfff7c,f010bda7,f010b8eb) at _vm_pageout_scan+0x146
_vm_pageout(f010b8eb,f0e077cb,b,1eff24,1fc000) at _vm_pageout+0x1b8
_main(efbfff88,3000,3000000,f0191eca,f01003bc,f01f0138,17,30,1eff24,1fc000,1fc000,0,21f80407) at _main+0x46f
begin() at begin+0x59
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