Date: Sun, 10 Nov 2002 12:48:46 -0600 From: "Alan L. Cox" <alc@imimic.com> To: Jake Burkholder <jake@locore.ca> Cc: Matt Jacob <mjacob@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/vm uma_dbg.c Message-ID: <3DCEAA0E.337BF15B@imimic.com> References: <200211101616.gAAGGiuV009632@repoman.freebsd.org> <20021110135614.A85338@locore.ca>
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Jake Burkholder wrote: > > Apparently, On Sun, Nov 10, 2002 at 08:16:44AM -0800, > Matt Jacob said words to the effect of; > > > mjacob 2002/11/10 08:16:44 PST > > > > Modified files: > > sys/vm uma_dbg.c > > Log: > > Use atomic_set_8 on the us_freelist maps as they are not otherwise > > protected. Furthermore, in some RISC architectures with no normal > > byte operations, the surrounding 3 bytes are also affected by the > > read-modify-write that has to occur. > > > > Revision Changes Path > > 1.9 +2 -2 src/sys/vm/uma_dbg.c > > sparc64 can't do atomic operations on less than 32 bits, this needs > a lock. > Matt, can you try acquiring and releasing the zone mutex in uma_dbg_alloc() and uma_dbg_free() instead? Alan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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