Date: Thu, 27 Jan 2011 22:20:59 +0000 From: Alexander Best <arundel@freebsd.org> To: Kostik Belousov <kostikbel@gmail.com> Cc: freebsd-emulation@freebsd.org, Jacob Frelinger <jacob.frelinger@duke.edu> Subject: Re: odd regression in the linux emulator. Message-ID: <20110127222059.GA9295@freebsd.org> In-Reply-To: <20110127214918.GS2518@deviant.kiev.zoral.com.ua> References: <4D404145.5020507@duke.edu> <20110126175529.GA92874@freebsd.org> <4D4066F5.3070407@duke.edu> <20110126210843.GA21919@freebsd.org> <20110127214918.GS2518@deviant.kiev.zoral.com.ua>
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On Thu Jan 27 11, Kostik Belousov wrote: > On Wed, Jan 26, 2011 at 09:08:43PM +0000, Alexander Best wrote: > > On Wed Jan 26 11, Jacob Frelinger wrote: > > > On 01/26/11 12:55, Alexander Best wrote: > > > >could you provide the output of 'pkg_info -E linux_dist\*' please? > > > > > > [jolly@moku ~]$ pkg_info -E linux_dist\* > > > linux_dist-gentoo-stage3-20100622 > > > > > > >btw: i also experience the problem. newer versions of linux_dist come with > > > >linux binaries that make heavy use of futextes (even 'ls'). you should see > > > >a lot of futex warnings in 'dmesg -a'. > > > > > > linux: pid 8416 (gmake): linux_sys_futex: op FUTEX_WAIT_BITSET not > > > implemented > > > linux: pid 8907 (ls): linux_sys_futex: op FUTEX_WAIT_BITSET not implemented > > > linux: pid 8908 (ls): linux_sys_futex: op FUTEX_WAIT_BITSET not implemented > > > > > > yup. got those. I saw them before when everything was working though > > > so I assumed they weren't the problem... ls generates them but seems to > > > work just fine. > > > > i think you're right. the futex stuff doesn't seem to be causing problems. i > > performed a kdump -d/linux_ktrace sequence and this is the result: > > > > 8462 gmake RET write 67/0x43 > > 8462 gmake CALL linux_pipe(0xffffbe08) > > 8462 gmake RET linux_pipe 0 > > 8462 gmake CALL close(0x5) > > 8462 gmake RET close 0 > > 8462 gmake CALL linux_fcntl64(0x3,0x2,0x1) > > 8462 gmake RET linux_fcntl64 0 > > 8462 gmake CALL linux_rt_sigprocmask(0,0x806bfe0,0,0x8) > > 8462 gmake RET linux_rt_sigprocmask 0 > > 8462 gmake CALL linux_vfork > > 8462 gmake RET linux_vfork 8463/0x210f > > 8462 gmake CALL linux_rt_sigprocmask(0x2,0xffffbdb0,0,0x8) > > 8462 gmake RET linux_rt_sigprocmask 0 > > 8462 gmake CALL linux_wait4(0xffffffff,0xffffbe5c,0,0) > > 8462 gmake RET linux_wait4 RESTART > > 8462 gmake PSIG SIGCHLD caught handler=0x80541a0 mask=0x0 code=0x0 > > 8462 gmake CALL linux_sigreturn(0xffffbb34) > > 8462 gmake RET linux_sigreturn JUSTRETURN > > 8462 gmake CALL linux_wait4(0xffffffffffffffff,0xffffffffffffbe5c,0,0) > > 8462 gmake RET linux_wait4 -1 errno 14 Bad address > > 8462 gmake CALL write(0x2,0xffff96b8,0xa) > > 8462 gmake GIO fd 2 wrote 10 bytes > > "make: *** " > > 8462 gmake RET write 10/0xa > > 8462 gmake CALL write(0x2,0xffff96b8,0x11) > > 8462 gmake GIO fd 2 wrote 17 bytes > > "wait: Bad address" > > 8462 gmake RET write 17/0x11 > > 8462 gmake CALL write(0x2,0x8068727,0x9) > > 8462 gmake GIO fd 2 wrote 9 bytes > > ". Stop. > > " > > 8462 gmake RET write 9 > > 8462 gmake CALL write(0x2,0xffff9618,0x6) > > 8462 gmake GIO fd 2 wrote 6 bytes > > "make: " > > 8462 gmake RET write 6 > > 8462 gmake CALL write(0x2,0xffff9618,0x23) > > 8462 gmake GIO fd 2 wrote 35 bytes > > "*** Waiting for unfinished jobs...." > > > > ...so something's wrong with the linux_wait4() call. > This should be fixed by r217991. thanks a bunch. indeed this fixed the issue. :) -- a13x
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