Date: Tue, 12 Sep 2000 14:43:24 -0700 (PDT) From: John Baldwin <jhb@pike.osd.bsdi.com> To: Doug Rabson <dfr@nlsystems.com> Cc: alpha@freebsd.org Subject: Re: Mutex's aren't recursing Message-ID: <200009122143.OAA08606@pike.osd.bsdi.com> In-Reply-To: <Pine.BSF.4.21.0009122128540.86297-100000@salmon.nlsystems.com> from Doug Rabson at "Sep 12, 2000 09:32:23 pm"
next in thread | previous in thread | raw e-mail | index | archive | help
Doug Rabson wrote: > I sent you some mail yesterday about this. I got the constraints wrong for > the inline assembler in atomic_cmpset. I disassembled some of the code in > interrupt.c which is trying to enter the mutex. You can clearly see that > it is misusing t1 as both an input and output to the inline. Thanks! I'll try this out. Also, I just discovered that swtch.s didn't import sched_lock, so cpu_switch was modifying a private copy of sched_lock instead of the global variable (I think). I'll have some feedback on this in just a sec. -- John Baldwin <jhb@bsdi.com> -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.cslab.vt.edu/~jobaldwi/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200009122143.OAA08606>