Date: Fri, 12 Aug 2016 11:11:17 -0400 From: "Kenneth D. Merry" <ken@FreeBSD.ORG> To: "Andrey V. Elsukov" <ae@FreeBSD.org> Cc: Bryan Drewery <bdrewery@FreeBSD.org>, Peter Wemm <peter@wemm.org>, svn-src-all@freebsd.org, svn-src-head@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r303019 - head/sys/geom Message-ID: <20160812151117.GA52309@mithlond.kdm.org> In-Reply-To: <7372bf93-69a2-f5f5-1d07-204fd31f252c@FreeBSD.org> References: <201607190536.u6J5aLl7015268@repo.freebsd.org> <3277576.dFZ2EGo2Fh@overcee.wemm.org> <6198652.UmU69kS6Zt@overcee.wemm.org> <181fcc35-3a5d-043f-7dc4-7a01a53eebae@FreeBSD.org> <7372bf93-69a2-f5f5-1d07-204fd31f252c@FreeBSD.org>
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On Fri, Aug 12, 2016 at 13:38:21 +0300, Andrey V. Elsukov wrote: > On 12.08.16 03:26, Bryan Drewery wrote: > > On r303467 I ran into this: > > > > panic @ time 1470916206.652, thread 0xfffff8000412f000: > > g_resize_provider_event but withered > > cpuid = 0 > > Panic occurred in module kernel loaded at 0xffffffff80200000: > > > > Stack: -------------------------------------------------- > > kernel:kassert_panic+0x166 > > kernel:g_resize_provider_event+0x181 > > kernel:g_run_events+0x186^M^M > > kernel:fork_exit+0x83^M^M > > -------------------------------------------------- > > > > No further information available unfortunately. > > This one is related to r302087 :) It looks like there is a race. I think we need to replace the KASSERT in g_resize_provider_event() with a return in case the provider is withered. I won't be able to work on or test this until sometime next week. So if you guys want to go ahead and make the change, please do. Ken -- Kenneth Merry ken@FreeBSD.ORG
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