[kernel] bug#132: PPP causes trap 15
None
X-PA-RISC Linux-PR-Message: report 132
X-PA-RISC Linux-PR-Package: kernel
X-Loop: daniel_frazier@hp.com
Received: via spool by bugs@bugs.parisc-linux.org id=B.99081300113644
(code B ref -1); Fri, 25 May 2001 18:03:01 GMT
Message-Id: <200105251742.LAA12036@puffin.external.hp.com>
To: submit@bugs.parisc-linux.org
Date: Fri, 25 May 2001 11:42:54 -0600
From: Grant Grundler <grundler@puffin.external.hp.com>
Package: kernel
Version: 20010523
I've not been able to succesfully use a PPP connection
from parisc-linux. Of the three attempts I've made so far,
I've gotten three "trap 15" kernel crashes which are all at
different IOAQs.
System.map and vmlinux are on puffin.external.hp.com:~grundler/c3k.*
I forgot to copy the .config over - if someone wants that, please
let me know.
I've appended the first console output here and will submit the other
two in seperate emails. (also on pehc:~grundler/c3k.out2[012])
Console output includes output from /var/log/syslog.
I was running "tail -f /var/log/syslog" from the console.
Seems talking to the external modem and dialing up worked fine.
Things died after the connection was established.
Suggests code used later (eg bsd_comp) was causing the crash.
I wasn't using dynamically loadable modules for the PPP.
I haven't tried disabling compression yet but will do that next.
I also don't understand what the "/dev/ppp: Resource temporarily unavailable"
messages are about.
keventd segfaulting had occurred a few times before.
Not sure what that's about either but it doesn't seem related.
grant
...
May 24 17:49:30 debian pppd[274]: rcvd [LCP EchoRep id=0x1f magic=0x0]
May 24 17:50:00 debian pppd[274]: sent [LCP EchoReq id=0x20 magic=0x42bfd40c]
May 24 17:50:00 debian pppd[274]: read: Resource temporarily unavailable
May 24 17:50:00 debian pppd[274]: read /dev/ppp: Resource temporarily unavailabl
e
May 24 17:50:00 debian pppd[274]: rcvd [LCP EchoRep id=0x20 magic=0x0]
c3k:~# tail -f /var/log/syslog
May 24 17:49:00 debian pppd[274]: read /dev/ppp: Resource temporarily unavailabl
e
May 24 17:49:00 debian pppd[274]: rcvd [LCP EchoRep id=0x1e magic=0x0]
May 24 17:49:30 debian pppd[274]: sent [LCP EchoReq id=0x1f magic=0x42bfd40c]
May 24 17:49:30 debian pppd[274]: read: Resource temporarily unavailable
May 24 17:49:30 debian pppd[274]: read /dev/ppp: Resource temporarily unavailabl
e
May 24 17:49:30 debian pppd[274]: rcvd [LCP EchoRep id=0x1f magic=0x0]
May 24 17:50:00 debian pppd[274]: sent [LCP EchoReq id=0x20 magic=0x42bfd40c]
May 24 17:50:00 debian pppd[274]: read: Resource temporarily unavailable
May 24 17:50:00 debian pppd[274]: read /dev/ppp: Resource temporarily unavailabl
e
May 24 17:50:00 debian pppd[274]: rcvd [LCP EchoRep id=0x20 magic=0x0]
break 0,0: pid=358 command='keventd'
keventd[358]: Breakpoint 0
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3 00000000 10332010 00000000 00000000
r4-7 00000000 00000000 00000000 00000000
r8-11 00000000 00000000 00000000 00000000
r12-15 00000000 00000000 102b5200 10123620
r16-19 8e590580 8e590000 f0000174 00000001
r20-23 10354940 10354940 8f3de780 10356cc0
r24-27 0000002e 00001000 00000000 102a0010
r28-31 00000000 00000000 8e590980 1012f5e8
sr0-3 00000000 00000000 00000000 000000e2
sr4-7 00000000 00000000 00000000 00000000
IASQ: 00000000 00000000 IAOQ: 00000000 00000004
IIR: 00000000 ISR: 00000000 IOR: 00000000
ORIG_R28: 00000000
Dumping Stack from 8ead8000 to 8ead8980:
8000 00000000 00000140 00000000 00000001 102b5380 00000000 00000000 ffffffff
8020 00000008 00000000 00000000 8f8d78c0 00000000 00000000 ffffffff 8e59c03c
8040 102b5200 0003a58a 8e734000 8e8e4000 8f8d78c0 102b82d8 00000000 00000012
8060 00000000 00000000 00000000 00000112 00000112 00000112 00000112 00000112
8080 00000001 10350000 10350000 8e5c0000 00000000 8f784000 8ead8098 8ead8098
80a0 00000000 10321240 8ead80a8 8ead80a8 8ead8588 00000000 00000000 00000000
80c0 00000000 00000000 00000000 00000000 00000000 00000000 00015273 8ead8000
80e0 1011ab80 00000000 00000001 00000005 00000011 00021e8b 00000088 00000333
8100 00000053 0000002f 00000000 000000fa 000005e9 00000000 80000000 000003e9
8120 00000000 00000000 00000000 000003e9 000003e9 000003e9 000003e9 00000003
8140 000003e9 00000014 0000001e 00000000 00000000 00000000 00000000 00000000
8160 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8180 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
81a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
81c0 fffffeff 00000000 fffffeff 00000000 8ee73220 7fffffff 7fffffff 7fffffff
81e0 7fffffff 7fffffff 7fffffff 00800000 80000000 00000000 7fffffff 7fffffff
8200 7fffffff 00000100 7fffffff 00000400 00000400 7fffffff 7fffffff 7fffffff
8220 7fffffff 7fffffff 7fffffff 00007070 7064002d 73746f70 2d646165 6d000000
8240 00000000 00000000 00000001 00000000 00000000 00000000 00000000 00062884
8260 00037b47 7ff00480 00063bbe 7ff00200 000639de 00000003 00063b7e 00085c10
8280 00088190 00084390 ffffffff 00000000 ffffffff 00000000 0007852e 000400f0
82a0 00000004 401cc23c 00000036 401617e4 00037994 00000008 00000000 8004743c
82c0 00000004 00061084 00000000 00071fc8 7ff004c0 401617ef 00000000 00000000
82e0 00000000 00000000 00000000 00000000 00000000 00000000 00000001 00000000
8300 00000002 10149f74 00000000 00000000 00000000 00000000 10350000 8f8e70c0
8320 10300000 00000000 102bb060 10323810 10320010 102a0010 00000001 102bf010
8340 10323810 10138748 102a0010 102fe234 102fe234 00000000 8f8ef000 102bb600
8360 00000000 00000002 00000000 102d0674 0004000e f0072848 10320810 8f8ef000
8380 102bb600 10149e58 cccccccd 00000230 00000001 9999999a b38cf9b1 17b0ff46
83a0 102a0010 1257fa00 10323810 102b8c38 0004000e f0072848 8f8f3140 00000001
83c0 102a0010 101388b0 10323810 102b8c38 00000000 00000000 00000000 000000e2
83e0 00000000 000000e2 000000e2 000000e2 000000e2 000000e2 000000e2 000000e2
8400 00037aeb 00037aef 00000036 8ead8000 00000000 8ead89c0 10105cf8 0000001e
8420 68330be0 000000e2 00062e74 55555555 002bc000 00000000 124ff500 8edcdc80
8440 8edcad80 00000000 00000000 00000000 8ead844c 00000000 00000000 00000000
8460 00000000 00000000 00000000 00000000 00000009 0000000a 400c1bf4 400c1bf8
8480 400c1bfc 400c1c00 400c1c04 400c1c08 400c1c0c 400c1c10 400c1c14 400c1c18
84a0 400c1c1c 400c1c20 400c1c24 10106744 400c1c2c 400c1c30 400c1c34 400c1c38
84c0 400c1c3c 400c1c40 401617e4 00037994 400c1c4c 400c1c50 400c1c54 400c1c58
84e0 400c1c5c 400c1c60 400c1c64 101071b0 400c1c6c 400c1c70 400c1c74 400c1c78
8500 00085c10 00063b7e 00000001 00000000 00000080 00000000 00000000 0000000b
8520 00000000 00000001 7ff00200 10138d54 7ff00400 401cc23c 7ff00b00 00085c10
8540 7ff00200 00063bbe 7ff00480 7ff00200 00063bbe 7ff00480 00084390 00088190
8560 00085c10 00063b7e 00000000 1014abd0 4001d000 00001000 8f8d78c0 00000000
8580 000639de 00000004 ffffffff 00084390 00088190 00085c10 00063b7e 00000003
85a0 000639de 7ff00200 00063bbe 7ff00480 00063b7e 00000003 000639de 8ea12000
85c0 8ea01580 8e857140 00000001 8ead8258 8f8e526c 8f8e5200 8e80a640 fffffff0
85e0 00000000 00000000 00071fc7 1010c374 00000047 00063b7e 00000015 00000000
8600 8ead8000 00000001 00000001 8ead8258 8e86096c 8e86096c 00000000 8ead8000
8620 00000000 00000000 00005423 1010c1e8 8e857640 8e860000 00062e6c 8e860000
8640 00000008 8ead8258 8ead8508 00000001 8ead8000 10320810 1034b880 8f23aa00
8660 000000e2 00062e74 0000001a 8ead8258 101c6474 00000000 101c6748 101c67c4
8680 101c67bc 101c684c 00062e6c 8e86096c 00000001 8ead8000 8e860000 8ead8000
86a0 7fffffff 102b8c10 8eace3c0 1021eed4 00000003 fffffffe 00088190 00000002
86c0 8f23aa00 10320810 8ead8444 00000001 8ead8454 8ead8444 8ead8000 00000008
86e0 8ead8258 8ead8444 00000001 8edcad84 494e5445 52464143 453d7070 70300000
8700 00000006 8f23aa00 00008000 102cba60 8f23aa00 00008000 102c86e0 69737465
8720 72008190 00000002 00005407 1010bf00 000639de 10320810 1034b880 00000000
8740 0006ff0f 00000000 1010bf14 00000000 7ff004c0 8ead8000 8ead8258 00000001
8760 00000000 7ff004c0 8edcad84 8ead8444 00000001 00000000 ffffffff 00000000
8780 0007852e 000400f0 00000004 00000001 00063d44 00063d46 00000001 8ead8444
87a0 00000000 8ead844c 7ff00710 102a0010 00000000 00000001 8ead8980 1012f5e8
87c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
87e0 00000001 00000000 00000002 10149f74 00000000 00000000 00000000 00000000
8800 10350000 8f8e70c0 10300000 00000000 102bb060 10323810 10320010 102a0010
8820 00000001 102bf010 10323810 10138748 102a0010 102fe234 102fe234 00000000
8840 8f8ef000 102bb600 00000000 00000002 00000000 102d0674 0004000e f0072848
8860 10320810 8f8ef000 102bb600 10149e58 cccccccd 00000230 00000001 9999999a
8880 b38cf9b1 17b0ff46 102a0010 1257fa00 10323810 102b8c38 0004000e f0072848
88a0 8f8f3140 00000001 102a0010 101388b0 10323810 102b8c38 00000000 00000000
88c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
88e0 00000000 00000000 1010c058 1010c05c 00000000 00000000 ffffffff 00000000
8900 1248eac0 0000001f 0e80d089 00000000 00063d44 1034b980 1010e2cc 0000001d
8920 0000000f fee002f9 3c105410 1011ca20 0000001d 0000001b 8ead8b00 1010ce18
8940 1248eac0 00004000 1027a000 8e7a2ba0 1034f540 10320810 00000000 00088190
8960 00084390 ffffffff 00000000 10106744 00000000 0007852e 000400f0 00000004
Kernel Fault: Code=15 regs=8ead8740 (Addr=00063d44)
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001101111111100001111
r0-3 00000000 00000000 1010bf14 00000000
r4-7 7ff004c0 8ead8000 8ead8258 00000001
r8-11 00000000 7ff004c0 8edcad84 8ead8444
r12-15 00000001 00000000 ffffffff 00000000
r16-19 0007852e 000400f0 00000004 00000001
r20-23 00063d44 00063d46 00000001 8ead8444
r24-27 00000000 8ead844c 7ff00710 102a0010
r28-31 00000000 00000001 8ead8980 1012f5e8
sr0-3 00000000 00000000 00000000 00000000
sr4-7 00000000 00000000 00000000 00000000
IASQ: 00000000 00000000 IAOQ: 1010c058 1010c05c
IIR: 0e80d089 ISR: 00000000 IOR: 00063d44
ORIG_R28: ffffffff
IOAQ = 0x1010c058 setup_rt_frame+258
GR02 = 0x1010bf14 setup_rt_frame+114