Date: Wed, 14 May 2003 13:26:21 +0200 (CEST) From: Bogdan TARU <bgd@icomag.de> To: <freebsd-hackers@FreeBSD.ORG> Subject: linux binary blues Message-ID: <20030514131951.O78837-100000@fw.office.icom>
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Hi Hackers, I have a linux binary that runs well under a jail on a FreeBSD 4.8, but fails to run on a jaili on 4.7 (obviously, both have linux compatibility installed). As far as I know (don't have the sources of this linux binary), it tries to get a lock on a file which is called engine.pid. That failes on 4.7. The ktraces on the systems look like: Good (jail on 4.8): 582 engine NAMI "/home/test/testbot/var/run/engine.pid" 582 engine RET open 3 582 engine CALL semget(0x3,0x6,0xbfbfe820) 582 engine RET semget 0 582 engine CALL getpid 582 engine RET getpid 582/0x246 582 engine CALL select(0x3,0) 582 engine RET select 0 582 engine CALL write(0x3,0x864c28c,0x4) 582 engine GIO fd 3 wrote 4 bytes Failed (jail on 4.7): 10995 engine NAMI "/usr/home/ohsandy/sandy/var/run/engine.pid" 10995 engine RET open 3 10995 engine CALL semget(0x3,0x6,0xbfbfe800) 10995 engine RET semget -1 errno -22 Unknown error: -22( 10995 engine CALL ktrace(0x8690000) 10995 engine RET ktrace 141099008/0x8690000 10995 engine CALL ktrace(0x869d000) 10995 engine RET ktrace 141152256/0x869d000 10995 engine CALL fchdir(0xbfbfe60c) 10995 engine RET fchdir 1052904408/0x3ec20bd8 10995 engine CALL open(0x852e160,0x441,0x1b6) 10995 engine NAMI "/compat/linux/usr/home/ohsandy/sandy/var/log" 10995 engine NAMI "/usr/home/ohsandy/sandy/var/log/error.log" I don't know, though, why the semget(2) has different values for the third argument (0xbfbfe820 != 0xbfbfe800), if the binary is the same and the linux libraries (as far as I can tell) are the same (tried with the 4.7 linux_base package, and as well with the 4.8 linux_base package installed on the 4.7 system). So, any ideas of what could go wrong, and if there are any chances of getting this binary to run on a 4.7? Thanks, bogdan
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