Date: Thu, 20 Sep 2018 20:09:01 +0200 From: Michael Schmiedgen <schmiedgen@gmx.net> To: Michael Tuexen <tuexen@freebsd.org> Cc: freebsd-current@FreeBSD.org Subject: Re: 12.0-ALPHA6 dumps with 'Fatal double fault' Message-ID: <bee3332d-d50e-d493-5b3b-68e40375700d@gmx.net> In-Reply-To: <3F80F987-397C-4CF1-9421-BA1AF0376B6C@freebsd.org> References: <b08b106f-b25a-1284-0e18-f186dd6baf4b@gmx.net> <ED35E1FA-CADD-4CDA-B5F0-0D8CC3FDA177@freebsd.org> <a37f1059-e54d-2384-40ed-54aef2e7c182@gmx.net> <00082772-8AA0-415B-A4C5-B8BC8D4D7BFC@freebsd.org> <8be8d63e-6f42-6350-eadb-c417496a1707@gmx.net> <3F80F987-397C-4CF1-9421-BA1AF0376B6C@freebsd.org>
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>>>> Port is devel/apr1 and platform is amd64. >>> Works fine on my side. It would be helpful if you could build a kernel with >>> debug symbols, reproduce the problem and provide a stack strace. >> >> Unfortunately I cannot. It is a production machine without debug that does not >> like to run on 11.1 OR 11.2 for some strange reason [1]. And I really do not > I'm not referring to 11.1 or 11.2. Just the kernel you use with debug symbols. I know, this was only some background information. >> want to run it on 11.0 anymore. Perhaps it is some crappy hardware from our >> hoster, I don't know. Anyway, after minimal-updating SVN to very-latest and >> removing SCTP it behaves just fine under load. > Removing SCTP means removing it from the kernel or disabling it in the port? From the kernel. I commented out 'options SCTP' and recompiled. >>> Since you said that it crashed multiple times makes me wonder if this problem >>> is related to SCTP in particular or if there is some other generic issue... >> >> The mentioned commit [2] lies exactly in my SVN update delta. So this could >> be the reason, too(?) >> >> Sadly I am to busy right now to investigate further, sorry. > OK. If you have some spare time, enable SCTP again and see if the problem > is related to it... Yes, if time and point in time permits, because that's a production server and I can only mess around with it late night. Michael
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