Date: Mon, 30 Jun 2014 10:40:02 -0400 From: Chris Ross <cross+freebsd@distal.com> To: freebsd-sparc64@freebsd.org Subject: Re: FreeBSD 10-STABLE/sparc64 panic Message-ID: <AF5EA0E6-860B-47DF-AC5E-6A45317C6092@distal.com> In-Reply-To: <7DD7D2DC-A265-40D6-9995-16ABAF79C1FB@distal.com> References: <20140518083413.GK24043@gradx.cs.jhu.edu> <751F7778-95CE-40FC-857F-222FB37737C0@distal.com> <20140518235853.GM24043@gradx.cs.jhu.edu> <20140519145222.GN24043@gradx.cs.jhu.edu> <A092DFEB-D5CF-473E-88BD-81B005C26C57@distal.com> <20140519193529.GO24043@gradx.cs.jhu.edu> <20140519205047.GP24043@gradx.cs.jhu.edu> <CA75738D-066D-4EDC-9018-89936EE861C6@distal.com> <AB5649B5-BBFB-4284-9CFF-4784D28A18F3@distal.com> <A9D37635-CA61-401B-BEAE-14C4F370BFD6@distal.com> <BC35853D-DA5E-4799-947C-4C64A0BC7D36@distal.com> <D9350E94-1F01-4FFD-A51E-AD8761F5C9CF@distal.com> <E48E7175-310B-4449-B3E1-2058F9E681D0@distal.com> <323A3936-DE55-459A-B8AA-CFF463922F22@distal.com> <7DD7D2DC-A265-40D6-9995-16ABAF79C1FB@distal.com>
next in thread | previous in thread | raw e-mail | index | archive | help
tl;dr : I=92ve finished my testing and have a result, but see other = things I don=92t understand. Could use more help. On Jun 29, 2014, at 22:46, Chris Ross <cross+freebsd@distal.com> wrote: > On Jun 20, 2014, at 23:44 , Chris Ross <cross+freebsd@distal.com> = wrote: >> On Jun 16, 2014, at 14:46 , Chris Ross <cross+freebsd@distal.com> = wrote: >>> On Jun 9, 2014, at 16:18, Chris Ross <cross+freebsd@distal.com> = wrote: >>>> On Jun 9, 2014, at 14:13, Chris Ross <cross+freebsd@distal.com> = wrote: >>>>=20 >>>> Oh well. That was learned quickly. r263478 booted once, but a = second >>>> attempt caused the multiple-boots-before-getting-to-multiuser. So, = moving >>>> right along, I=92ll try r263401 in the more =93binary search=94 = algorithm=85 =20 >>>=20 >>> [...] so I=92m going to try r263407. Mostly zfs changes from = Illumos, but. >>=20 >> r263407 showed no problems. I just rebooted a few times more and see >> no issues. I worry I'm chasing ghosts, but am going to try r263470 = next. >=20 > I ran r263470 for a week or so, with quite a few reboots (7, it = appears). > Never tried more than once to boot successfully. Next, I'm going to = confirm > I still get crashes with a fresh build of r263478. But, there's only = about 1000 > lines of diff between those two revisions, much of it changes to = routing and > related networking code. So, could certainly be it. Easily confirmed. The first attempt to boot an r263478 stable/10 = kernel panic=92d, and there were 10 more boot-and-panic attempts before it successfully booted. http://svnweb.freebsd.org/base?view=3Drevision&sortby=3Ddate&revision=3D26= 3478 I can try manually reverting each of the specified revisions (262763, = 262767, 262771, and 262806) from the code, but I=92d feel better having someone = with deeper knowledge of the networking code and/or sparc64 MD architecture take a closer look at it from here. Anyone available? Kurt, I know you said you saw this on head back in March: = http://lists.freebsd.org/pipermail/freebsd-sparc64/2014-March/009261.html ..which looks like it was before (r262669) the things listed above as MFC=92d. And, I see another email from you in 2013 that looks like the = same=20 issue in head r257208. = http://lists.freebsd.org/pipermail/freebsd-sparc64/2013-October/009085.htm= l So, I=92m a bit confused. It looks like this goes back much further = than my testing had revealed. But, maybe the things MFC=92d in stable/10 = r263478 either (a) included bits that were also in other revisions, or (b) = provoked the same problem provoked earlier in head, just in a different = way/place. I=92m at a bit of a loss for what to do now, but would really like to = see this get resolved. I don=92t like the fact that numerous of us on the list = have seem this problem, and are having difficulty running machines (v240 only?) because of it. If there=92s anything else I can do, I have a machine that appears to = be behaving semi-consistently with these two revisions of stable/10. I=92m happy to help further. - Chris
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?AF5EA0E6-860B-47DF-AC5E-6A45317C6092>