Date: Fri, 20 Jul 2007 18:21:17 +0200 From: Alexander Leidinger <Alexander@Leidinger.net> To: Mikhail Teterin <mi+kde@aldan.algebra.com> Cc: freebsd-emulation@freebsd.org, ariff@freebsd.org Subject: Re: something wrong with Linux on 6.2-stable/amd64 Message-ID: <20070720182117.08016bcc@deskjail> In-Reply-To: <200707201013.13391@aldan> References: <200707192341.59940@aldan> <200707200853.28425@aldan> <20070720152138.47b2e4b5@deskjail> <200707201013.13391@aldan>
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Quoting Mikhail Teterin <mi+kde@aldan.algebra.com> (Fri, 20 Jul 2007 10:13:12 -0400): > On п'ятниця 20 липень 2007, Alexander Leidinger wrote: > = Do you have sound output? The mmap changes result in a problem with > = some sound stuff. > > Yes, I do. > > = There's a new sysctl for this, but AFAIK there's no UPDATING entry (yet): > = ---snip--- > = New sysctl: "hw.snd.compat_linux_mmap" to allow PROT_EXEC page > = mapping, due to recent changes in linux compatibility layer which > = require it. All linux applications that using sound + mmap() (mostly > = games) require this to be enabled. Disabled by default. > = ---snip--- > > There must be very good reasons for breaking compatibility so... Is improving compatibility for other use cases a reason which is good enough? > = This may or may not solve your problem. I don't remember changes to > = linux_select, so this is the only thing I can up with to help you... > > No, setting hw.snd.compat_linux_mmap did not change anything. Did I have to > reboot or something for it to have effect? > > = If it doesn't work, you have to have a look at my linux changes in > = stable (5 or 6 in total) and binary search between them for the > = problematic one. > > Could you identify them for me, please? http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/compat/linux/?only_with_tag=RELENG_6#dirlist http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/i386/linux/?only_with_tag=RELENG_6#dirlist http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/amd64/linux32/?only_with_tag=RELENG_6#dirlist MFC 1 is only style. MFC 2 and 4 may be a candidate. For MFC 2 I don't see how it can affect this. MFC 5 is the mmap stuff + errno changes (additional errno translations). MFC 4 handles also some more socket options. > P.S. Frankly, should not the burden of debugging be on you, actually? You are the one with the problem at hand, and I'm the one with not enough time ATM... Bye, Alexander. -- The pills to be taken with meals will be the least appetizing ones. http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137help
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