Date: Fri, 13 Apr 2007 18:26:17 +0200 (CEST) From: Oliver Fromme <olli@lurza.secnetix.de> To: doublef-ctm@yandex.ru (Sergey Zaharchenko) Cc: freebsd-current@FreeBSD.ORG Subject: Re: ZFS committed to the FreeBSD base. Message-ID: <200704131626.l3DGQHZW044782@lurza.secnetix.de> In-Reply-To: <20070413152932.GA3088@shark.localdomain>
next in thread | previous in thread | raw e-mail | index | archive | help
Sergey Zaharchenko wrote: > Hello Oliver! > > Fri, Apr 13, 2007 at 04:52:45PM +0200 you wrote: > > Using cmpxchg8b with a lock prefix wouldn't be a good idea > > anyway. If I remember correctly, the lock cmpxchg8b > > combination was the cause of the infamous "F00F" bug of > > old Pentium processors. It causes them to freeze. > > AFAICT the bug only manifested itself when the instruction had an > invalid register operand: > > www.intel.com/support/processors/pentium/ppiie/ : Ah, that's good then. Thanks for the clarification! Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "And believe me, as a C++ programmer, I don't hesitate to question the decisions of language designers. After a decent amount of C++ exposure, Python's flaws seem ridiculously small." -- Ville Vainio
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200704131626.l3DGQHZW044782>