Date: Tue, 26 Sep 2006 17:33:44 -0400 From: Jung-uk Kim <jkim@FreeBSD.org> To: freebsd-emulation@FreeBSD.org Subject: linuxulator on -CURRENT Message-ID: <200609261733.48398.jkim@FreeBSD.org>
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I was little annoyed by linuxulator breakage on amd64, which fails to
run Acrobat Reader. (Well, actually it's not Acrobat's fault. It's
just that wrapper is failing. If you run 'sh /usr/X11R6/bin/acroread'
instead, it runs okay.) All seem to boil down to one problem:
%cat test.sh
#!/usr/compat/linux/bin/sh
bar=`true`
foo=`false`
%sh -x test.sh
+ true
+ bar=
+ false
+ foo=
%/compat/linux/bin/sh -x test.sh
++ true
Segmentation fault (core dumped)
linux_kdump shows this:
%linux_kdump | tail -40
16618 bash CALL linux_fstat64(0xff,0xffffd52c,0x2822aff4)
16618 bash RET linux_fstat64 0
16618 bash CALL linux_llseek(0xff,0,0,0xffffd4f4,0x1)
16618 bash RET linux_llseek 0
16618 bash CALL linux_rt_sigprocmask(0,0,0x80f341c,0x8)
16618 bash RET linux_rt_sigprocmask 0
16618 bash CALL read(0xff,0x8112fd0,0x32)
16618 bash GIO fd 255 read 50 bytes
"#!/usr/compat/linux/bin/sh
bar=`true`
foo=`false`
"
16618 bash RET read 50/0x32
16618 bash CALL linux_rt_sigprocmask(0,0,0x80f341c,0x8)
16618 bash RET linux_rt_sigprocmask 0
16618 bash CALL linux_pipe(0xffffd054)
16618 bash RET linux_pipe 0
16618 bash CALL linux_rt_sigprocmask(0,0xffffcf08,0xffffce88,0x8)
16618 bash RET linux_rt_sigprocmask 0
16618 bash CALL linux_llseek(0xff,0xffffffff,0xfffffff4,0xffffce34,0x1)
16618 bash RET linux_llseek 0
16618 bash CALL linux_fork
16618 bash RET linux_fork 16619/0x40eb
16618 bash CALL linux_rt_sigprocmask(0x2,0xffffce88,0,0x8)
16618 bash RET linux_rt_sigprocmask 0
16618 bash CALL linux_rt_sigaction(0x11,0xffffcdb0,0xffffcd24,0x8)
16618 bash RET linux_rt_sigaction 0
16618 bash CALL close(0x4)
16618 bash RET close 0
16618 bash CALL read(0x3,0xffffcfd4,0x80)
16618 bash GIO fd 3 read 0 bytes
""
16618 bash RET read 0
16618 bash PSIG SIGCHLD caught handler=0x807871f mask=0x0 code=0x0
16618 bash CALL linux_waitpid(0xffffffff,0xffffcc7c,0x1)
16618 bash RET linux_waitpid 16619/0x40eb
16618 bash CALL linux_waitpid(0xffffffff,0xffffcc7c,0x1)
16618 bash RET linux_waitpid -1 errno 10 No child processes
16618 bash PSIG SIGSEGV SIG_DFL
16618 bash NAMI "bash.core"
It seems linux_waitpid() is waiting for a dead child.
Can anyone with Linuxulator foo take a look at it?
FYI, I found similar report here:
http://docs.freebsd.org/cgi/mid.cgi?450894EF.1020101
Thanks,
Jung-uk Kim
* PS: I have modified ports/devel/linux_kdump to build without gentoo.
If anybody is interested, you can get it from here:
http://people.freebsd.org/~jkim/linux_kdump.tar.gz
I just added Linux header files as a patch. :-P
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