Date: Wed, 4 Apr 2018 13:50:13 +0100 From: tech-lists <tech-lists@zyxst.net> To: freebsd-arm@freebsd.org Subject: Re: More problems self-hosting -current on RPi3 Message-ID: <b0a011c9-f8a2-33d9-3b54-b50e872130ec@zyxst.net> In-Reply-To: <20180330235039.GA53786@www.zefox.net> References: <20180330235039.GA53786@www.zefox.net>
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Hi, On 31/03/2018 00:50, bob prohaska wrote: > Here's a strange buildworld failure with -current on an RPI3. > > To set the stage, a make -j2 buildworld/buildkernel was run from a > clean (run make cleandir twice, rm -rf /usr/obj/usr/src) start. Kernel > and sources were at, or close to, r331146. > > Buildworld finished, but the kernel build failed on an error of long standing, > something about mismatches between various versions of stdint.h in the file > system. Svnlite update reported quite a bit of activity, so the world/kernel > build was restarted with -j2 and -DNO_CLEAN. > > Some hours later, the system was found with all ssh sessions terminated > and the top output recorded in the link below. It looks as if the system > decided it was out of swap, and then went on a killing spree when lld.ld > didn't go away. Disregarding the stated swap usage, ld.lld was less than > 1.4 GB in size with 3 GB of swap. > > Details are at http://www.zefox.net/~fbsd/rpi3/crashes/20180330/ > > It's worth noting that gstat reports write speeds of 2-3 MB/sec to > the microSD card and USB flash, which does not seem much worse than > mechanical hard disks. The system _does_ seem prone to a sort of > "swap frenzy" when swap usage goes much over 10%, recovering at > intervals when all the cores are busy. Some months ago it was at > least occasionally possible to finish a -j4 buildworld, now even > -j2 buildworld is extremely uncertain. Do you think the following might be related to the swap problems you've been having: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221356 https://lists.freebsd.org/pipermail/freebsd-stable/2018-March/088467.html -- J.
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