From: Walter Hafner <hafner@informatik.tu-muenchen.de> To: Marcel Moolenaar <marcel@scc.nl> Cc: questions@freebsd.org Subject: Re: Netscape 4.61 (Linux) broken since adding linux_base-5.2 Message-ID: <srj670cstnd.fsf@hprbg5.informatik.tu-muenchen.de> In-Reply-To: Marcel Moolenaar's message of "Tue, 12 Oct 1999 11:10:31 %2B0200" References: <19991011232409.B3243@marder-1>, <srj7lktrm4l.fsf@hprbg5.informatik.tu-muenchen.de> <3802FB07.E4D52F6F@scc.nl>
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Marcel Moolenaar <marcel@scc.nl> writes:
> > tons of "old.recvfrom" from the libs
>
> You need to use linux_kdump (from the ports collection) to see the Linux
> syscalls properly. Alternatively, use truss.
*EVIL GRIN*
w3proj2# uname -a
FreeBSD w3proj2.ze.tu-muenchen.de 3.3-STABLE FreeBSD 3.3-STABLE #7: Mon Oct 11 18:02:36 CEST 1999 hafner@w3proj2.ze.tu-muenchen.de:/usr/src/sys/compile/W3PROJ2 i386
w3proj2# ls -agl /compat/linux/
total 2
drwxr-xr-x 2 root bin 512 12 Okt 12:45 .
drwxr-xr-x 3 root bin 512 12 Okt 09:58 ..
w3proj2# cd /usr/ports/emulators/linux_base/
w3proj2# make all install
...
w3proj2# cd ../../devel/linux_devtools/
w3proj2# make all install
...
w3proj2# cd ../linux_kdump/
w3proj2# make all install
...
===> Building for linux_kdump-1.3
Warning: Object directory not changed from original /usr/ports/devel/linux_kdump/work/linux_kdump-1.3
cc -O2 -m486 -pipe -I/usr/src/usr.bin/ktrace -I/ -I/usr/local/usr/include -c kdump.c
kdump.c: In function `ktrsyscall':
kdump.c:249: structure has no member named `ktr_args'
*** Error code 1
Oops!
BTW: /usr/ports and /usr/src tree are from Oct. 8. (cvsup)
Anyway, let's go:
w3proj2# cd /sys/modules/linux/
w3proj2# make clean
...
w3proj2# make all install
...
w3proj2# kldunload linux
w3proj2# kldload linux
w3proj2# ktrace acroread
Segmentation fault (core dumped)
(See my last posting for ktrace details)
w3proj2# truss -o truss.out acroread
Segmentation fault (core dumped)
w3proj2# ls -al *core
-rw------- 1 root wheel 520192 12 Okt 12:54 acroread.core
-rw------- 1 root wheel 868352 12 Okt 12:54 truss.core
Oops!
w3proj2# gdb /usr/bin/truss truss.core
...
Program terminated with signal 11, Segmentation fault.
...
(gdb) bt
#0 0x280a33d8 in kill () from /usr/lib/libc.so.3
#1 0x8048f8a in free ()
#2 0x8048a8d in free ()
(gdb)
...
Got to compile truss with -g someday ...
Anyway, truss.out doesn't give more insight than ktrace:
syscall geteuid()
returns 0 (0x0)
syscall getuid()
returns 0 (0x0)
syscall getgid()
returns 0 (0x0)
syscall getegid()
returns 0 (0x0)
syscall getpid()
returns 10654 (0x299e)
SIGNAL 11
SIGNAL 11
Process stopped because of: 16
process exit, rval = 139
Linux gdb doesn't help, as you stated already:
w3proj2# /compat/linux/usr/bin/gdb /usr/local/Acrobat3/Reader/intellinux/bin/acroread acroread.core
/compat/linux/usr/bin/gdb: error in loading shared libraries
/usr/lib/libtermcap.so.2: undefined symbol: _DefaultRuneLocale
Another go: I compiled linux.ko with -DDEBUG. Here's part of the output
when calling acroread:
w3proj2# tail /var/log/messages
Oct 12 13:14:34 w3proj2 /kernel: Linux-emul(12792): open(/usr/local/jdk/lib/i386/green_threads/ld-linux.so.2, 0x0, 0xfffff000)
Oct 12 13:14:34 w3proj2 /kernel: Linux-emul(12792): open returns error 2
Oct 12 13:14:34 w3proj2 /kernel: Linux-emul(12792): open(/usr/home/hafner/lib/ld-linux.so.2, 0x0, 0xfffff000)
Oct 12 13:14:34 w3proj2 /kernel: Linux-emul(12792): open returns error 2
Oct 12 13:14:34 w3proj2 /kernel: Linux-emul(12792): open(/compat/linux/lib/ld-linux.so.2, 0x0, 0xfffff000)
Oct 12 13:14:34 w3proj2 /kernel: Linux-emul(12792): open returns error 0
Oct 12 13:14:34 w3proj2 /kernel: Linux-emul(12792): mmap(0, 45056, 0, 00000022, -1, 0)
Oct 12 13:14:34 w3proj2 /kernel: Linux-emul(12792): mmap(0x2870c000, 36884, 5, 00000012, 3, 0)
Oct 12 13:14:34 w3proj2 /kernel: Linux-emul(12792): mmap(0x28716000, 1480, 3, 00000012, 3, 36864)
Oct 12 13:14:34 w3proj2 /kernel: pid 12792 (acroread), uid 0: exited on signal 11 (core dumped)
Any hints?
-Walter
--
Dr. Walter Hafner Tel: 089/289-28187
WWW-Beauftragter, TU Muenchen Email: hafner@in.tum.de
WWW: http://www.tum.de/~hafner/
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