Date: Sun, 30 Oct 2011 10:40:08 GMT From: Andriy Gapon <avg@FreeBSD.org> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/161887: [vm] [panic] panic at vm_page_wire with FreeBSD 9.0 Beta 3 [regression] Message-ID: <201110301040.p9UAe8Dr057268@freefall.freebsd.org>
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The following reply was made to PR kern/161887; it has been noted by GNATS. From: Andriy Gapon <avg@FreeBSD.org> To: bug-followup@FreeBSD.org, bsdboot@gmail.com Cc: Subject: Re: kern/161887: [vm] [panic] panic at vm_page_wire with FreeBSD 9.0 Beta 3 [regression] Date: Sun, 30 Oct 2011 12:31:25 +0200 Do you build your test module as a part of a kernel+modules build or do you build it in isolation? If the latter, then this could be a known obscure problem. A standalone module build doesn't get some important definitions from kernel config (e.g. via opt_global.h) and can be in a serious disagreement with the kernel. In particular, if a kernel is built with SMP option, but a module build doesn't have SMP defined, then they will have different definitions of PA_LOCK_COUNT and thus would work on different actual locks when manipulating the same page. -- Andriy Gapon
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