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* Re: [9fans] snoopy is broken
@ 2002-06-15 13:03 presotto
  0 siblings, 0 replies; 2+ messages in thread
From: presotto @ 2002-06-15 13:03 UTC (permalink / raw)
  To: arisawa, 9fans

[-- Attachment #1: Type: text/plain, Size: 210 bytes --]

My fault.  It's actually a problem with convM2S and snoopy.  Snoopy
ignores convM2S's return code since it often fails because IP
fragmentation.  I need to write a convM2S that's closer to what
snoopy needs.

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From: arisawa@ar.aichi-u.ac.jp
To: 9fans@nx.aichi-u.ac.jp
Subject: [9fans] snoopy is broken
Date: Sat, 15 Jun 2002 15:50:52 +0900
Message-ID: <20020615065057.434ED19999@mail.cse.psu.edu>

Hello,

Snoopy enters broken state in some condition.
Probably, large traffic make a problem.

Kenji Arisawa

#
# In one windows
#
term% snoopy -sf tcp>/dev/null

#
# In other windows
#
term% ls -l /n/nx/home/arisawa/src
--rw-r--r-- M 87 arisawa wheel    62812 Feb  7  1996
/n/nx/home/arisawa/src/zmodem.tar.gz
term% cat /n/nx/home/arisawa/src/zmodem.tar.gz>/dev/null

#
# Then snoopy is broken
#
snoopy 1826: suicide: sys: trap: fault read addr=0x7ffff000
pc=0x0000d170

#
# stack of acid
#
term% acid 1826
/proc/1826/text:386 plan 9 executable

/sys/lib/acid/port
/sys/lib/acid/386
acid: lstk()
At pc:0x0000d170:fcallfmt+0x352 /sys/src/libc/9sys/fcallfmt.c:61
fcallfmt(fmt=0x7fffed64) /sys/src/libc/9sys/fcallfmt.c:12
        called from _fmtdispatch+0x94 /sys/src/libc/fmt/fmt.c:175
        buf=0x6c617754
        e=0x7fffece4
        f=0x7fffedd8
        tag=0x0000d171
        tmp=0x00000000
        i=0x00000085
        p=0x7fffeaf4
        q=0x7fffee18
        d=0x7fffea1c
_fmtdispatch(isrunes=0x00000000,f=0x7fffed64,fmt=0x000167ae)
/sys/src/libc/fmt/fmt.c:113
        called from dofmt+0x75 /sys/src/libc/fmt/dofmt.c:62
        rune=0xb6b30046
dofmt(fmt=0x000167ac,f=0x7fffed64) /sys/src/libc/fmt/dofmt.c:7
        called from vseprint+0x5d /sys/src/libc/fmt/vseprint.c:20
        nfmt=0x00000000
        rt=0x7fffede4
        rs=0x7fffee54
        r=0x0000c563
        rune=0xa7b20000
        t=0x0002c9c8
        s=0x000308f6
        n=0x00340000
vseprint(e=0x000308f7,buf=0x0002c9c8,args=0x7fffedc8,fmt=0x000167ac)
/sys/src/libc/fmt/vseprint.c:6
        called from seprint+0x2b /sys/src/libc/fmt/seprint.c:13
        f=0x7fffee00
seprint(fmt=0x000167ac,buf=0x0002c9c8,e=0x000308f7)
/sys/src/libc/fmt/seprint.c:6
        called from p_seprint+0x8c /sys/src/cmd/ip/snoopy/ninep.c:32
        args=0x7fffedc8
p_seprint(m=0x7fffef1c) /sys/src/cmd/ip/snoopy/ninep.c:21
        called from printpkt+0x131 /sys/src/cmd/ip/snoopy/main.c:271
        f=0x0000006e
        p=0x0002c9c8
printpkt(p=0x0002c8f8,e=0x000308f7,ps=0x0001c87a,pe=0x0001ccb0)
/sys/src/cmd/ip/snoopy/main.c:256
        called from main+0x49f /sys/src/cmd/ip/snoopy/main.c:180
        m=0x0001c8b0
main(argv=0x7fffefe4,argc=0x00000000)
/sys/src/cmd/ip/snoopy/main.c:48
        called from _main+0x31 /sys/src/libc/386/main9.s:16
        pkt=0x0001c87a
        buf=0x0002c8f8
        e=0x000308f7
        _argc=0x00000066
        _args=0x00019250
        p=0x7fffeff8
        file=0x00019267
        cfd=0x00000004
        fd=0x00000005
        n=0x00000436
acid:

^ permalink raw reply	[flat|nested] 2+ messages in thread

* [9fans] snoopy is broken
@ 2002-06-15  6:50 arisawa
  0 siblings, 0 replies; 2+ messages in thread
From: arisawa @ 2002-06-15  6:50 UTC (permalink / raw)
  To: 9fans

Hello,

Snoopy enters broken state in some condition.
Probably, large traffic make a problem.

Kenji Arisawa

#
# In one windows
#
term% snoopy -sf tcp>/dev/null

#
# In other windows
#
term% ls -l /n/nx/home/arisawa/src
--rw-r--r-- M 87 arisawa wheel    62812 Feb  7  1996
/n/nx/home/arisawa/src/zmodem.tar.gz
term% cat /n/nx/home/arisawa/src/zmodem.tar.gz>/dev/null

#
# Then snoopy is broken
#
snoopy 1826: suicide: sys: trap: fault read addr=0x7ffff000
pc=0x0000d170

#
# stack of acid
#
term% acid 1826
/proc/1826/text:386 plan 9 executable

/sys/lib/acid/port
/sys/lib/acid/386
acid: lstk()
At pc:0x0000d170:fcallfmt+0x352 /sys/src/libc/9sys/fcallfmt.c:61
fcallfmt(fmt=0x7fffed64) /sys/src/libc/9sys/fcallfmt.c:12
        called from _fmtdispatch+0x94 /sys/src/libc/fmt/fmt.c:175
        buf=0x6c617754
        e=0x7fffece4
        f=0x7fffedd8
        tag=0x0000d171
        tmp=0x00000000
        i=0x00000085
        p=0x7fffeaf4
        q=0x7fffee18
        d=0x7fffea1c
_fmtdispatch(isrunes=0x00000000,f=0x7fffed64,fmt=0x000167ae)
/sys/src/libc/fmt/fmt.c:113
        called from dofmt+0x75 /sys/src/libc/fmt/dofmt.c:62
        rune=0xb6b30046
dofmt(fmt=0x000167ac,f=0x7fffed64) /sys/src/libc/fmt/dofmt.c:7
        called from vseprint+0x5d /sys/src/libc/fmt/vseprint.c:20
        nfmt=0x00000000
        rt=0x7fffede4
        rs=0x7fffee54
        r=0x0000c563
        rune=0xa7b20000
        t=0x0002c9c8
        s=0x000308f6
        n=0x00340000
vseprint(e=0x000308f7,buf=0x0002c9c8,args=0x7fffedc8,fmt=0x000167ac)
/sys/src/libc/fmt/vseprint.c:6
        called from seprint+0x2b /sys/src/libc/fmt/seprint.c:13
        f=0x7fffee00
seprint(fmt=0x000167ac,buf=0x0002c9c8,e=0x000308f7)
/sys/src/libc/fmt/seprint.c:6
        called from p_seprint+0x8c /sys/src/cmd/ip/snoopy/ninep.c:32
        args=0x7fffedc8
p_seprint(m=0x7fffef1c) /sys/src/cmd/ip/snoopy/ninep.c:21
        called from printpkt+0x131 /sys/src/cmd/ip/snoopy/main.c:271
        f=0x0000006e
        p=0x0002c9c8
printpkt(p=0x0002c8f8,e=0x000308f7,ps=0x0001c87a,pe=0x0001ccb0)
/sys/src/cmd/ip/snoopy/main.c:256
        called from main+0x49f /sys/src/cmd/ip/snoopy/main.c:180
        m=0x0001c8b0
main(argv=0x7fffefe4,argc=0x00000000)
/sys/src/cmd/ip/snoopy/main.c:48
        called from _main+0x31 /sys/src/libc/386/main9.s:16
        pkt=0x0001c87a
        buf=0x0002c8f8
        e=0x000308f7
        _argc=0x00000066
        _args=0x00019250
        p=0x7fffeff8
        file=0x00019267
        cfd=0x00000004
        fd=0x00000005
        n=0x00000436
acid:



^ permalink raw reply	[flat|nested] 2+ messages in thread

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2002-06-15  6:50 arisawa

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