Date: Thu, 29 Jun 2000 17:00:16 -0700 (PDT) From: "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net> To: dgilbert@velocet.ca (David Gilbert) Cc: bright@wintelcom.net (Alfred Perlstein), Freebsd-stable@FreeBSD.ORG Subject: Re: dc19 fructration. Message-ID: <200006300000.RAA00417@gndrsh.dnsmgr.net> In-Reply-To: <14683.31607.612798.996185@trooper.velocet.net> from David Gilbert at "Jun 29, 2000 12:38:15 pm"
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> >>>>> "Alfred" == Alfred Perlstein <bright@wintelcom.net> writes:
>
> Alfred> Using truss or gdb on ifconfig may help you find out which
> Alfred> syscall is the culpret.
>
> Problem is that the system crashes before ifconfig -a completes, and
> it would appear that the stack smashing that whatever syscall is
> running does will bring down the kernel regardless of how I proceed.
>
> I was asking specifically if someone new the approximate code path
> that ifconfig -a traversed since I was having trouble collecting this
> data.
>
> I would assume that even if I knew what syscall was running that I'd
> have to trace my way through a maze of function pointers before I got
> my way clear.
Here is the truss output of an ifconfig -a on an older system, but
the kernel calls should be the same: (FreeBSD 3.2)
syscall __sysctl(0xefbfd8c4,0x6,0x0,0xefbfd8c0,0x0,0x0)
returns 0 (0x0)
syscall readlink("/etc/malloc.conf",0xefbfd81c,63)
errno 2 'No such file or directory'
syscall mmap(0x0,4096,0x3,0x1002,-1,0x0)
returns 671526912 (0x2806b000)
syscall break(0x8079000)
returns 0 (0x0)
syscall break(0x807a000)
returns 0 (0x0)
syscall __sysctl(0xefbfd8c4,0x6,0x8079000,0xefbfd8c0,0x0,0x0)
returns 0 (0x0)
syscall socket(0x2,0x2,0x0)
returns 3 (0x3)
syscall ioctl(3,SIOCGIFMETRIC,0x80752f0)
returns 0 (0x0)
syscall ioctl(3,SIOCGIFMTU,0x80752f0)
returns 0 (0x0)
syscall fstat(1,0xefbfd528)
returns 0 (0x0)
syscall break(0x807e000)
returns 0 (0x0)
syscall ioctl(3,SIOCGIFMEDIA,0xefbfd7f8)
returns 0 (0x0)
syscall ioctl(3,SIOCGIFMEDIA,0xefbfd7f8)
returns 0 (0x0)
syscall close(3)
returns 0 (0x0)
syscall socket(0x2,0x2,0x0)
returns 3 (0x3)
syscall ioctl(3,SIOCGIFMETRIC,0x80752f0)
returns 0 (0x0)
syscall ioctl(3,SIOCGIFMTU,0x80752f0)
returns 0 (0x0)
syscall ioctl(3,SIOCGIFMEDIA,0xefbfd7f8)
returns 0 (0x0)
syscall ioctl(3,SIOCGIFMEDIA,0xefbfd7f8)
returns 0 (0x0)
syscall close(3)
returns 0 (0x0)
syscall socket(0x2,0x2,0x0)
returns 3 (0x3)
syscall ioctl(3,SIOCGIFMETRIC,0x80752f0)
returns 0 (0x0)
syscall ioctl(3,SIOCGIFMTU,0x80752f0)
returns 0 (0x0)
syscall ioctl(3,SIOCGIFMEDIA,0xefbfd7f8)
errno 22 'Invalid argument'
syscall close(3)
returns 0 (0x0)
syscall madvise(0x8079000,0x1000,0x5)
returns 0 (0x0)
de0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
ether 00:c0:f0:04:2c:d4
media: autoselect (10base5/AUI) status: active
supported media: autoselect 10base5/AUI 10base2/BNC 10baseT/UTP <full-duplex> 10baseT/UTP
de1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 198.145.92.4 netmask 0xffffffe0 broadcast 198.145.92.31
inet 198.145.92.17 netmask 0xffffffff broadcast 198.145.92.17
ether 00:80:c8:3e:32:de
media: autoselect (10baseT/UTP) status: active
supported media: autoselect 100baseTX <full-duplex> 100baseTX 10baseT/UTP <full-duplex> 10baseT/UTP
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet 127.0.0.1 netmask 0xff000000
syscall write(1,0x807a000,677)
returns 677 (0x2a5)
syscall exit(0x0)
process exit, rval = 0
--
Rod Grimes - KD7CAX @ CN85sl - (RWG25) rgrimes@gndrsh.dnsmgr.net
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