Date: Wed, 06 Jun 2018 20:55:39 +0200 From: "Ronald Klop" <ronald-lists@klop.ws> To: "bob prohaska" <fbsd@www.zefox.net> Cc: freebsd-arm@freebsd.org, "FreeBSD Current" <freebsd-current@freebsd.org> Subject: Re: panic: Assertion td->td_lock == TDQ_LOCKPTR(tdq) failed at /usr/src/sys/kern/sched_ule.c:2137 Message-ID: <op.zj7au1kekndu52@klop.ws> In-Reply-To: <op.zjzb1pkbkndu52@klop.ws> References: <op.zjvyeypwkndu52@klop.ws> <20180601154153.GA62632@www.zefox.net> <op.zjzb1pkbkndu52@klop.ws>
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On Sat, 02 Jun 2018 13:40:27 +0200, Ronald Klop <ronald-lists@klop.ws> wrote: > This happened again. Now I have a crashdump. > Anyone interested? > > Some more answers below. > > > On Fri, 01 Jun 2018 17:41:54 +0200, bob prohaska <fbsd@www.zefox.net> > wrote: > >> On Thu, May 31, 2018 at 05:53:12PM +0200, Ronald Klop wrote: >>> I had a crash on my RPI-3B+ running freebsd 12/aarch64 from the 29 may >>> snapshot. >>> It was building world -j4 and portsnap extract. >>> >>> I will keep it in the debugger for about an hour so if I need to >>> provide >>> more information, please mail me. >>> >>> >>> db> show panic >>> panic: Assertion td->td_lock == TDQ_LOCKPTR(tdq) failed at >>> /usr/src/sys/kern/sched_ule.c:2137 >>> >> This used to be a fairly common error on my RPI3, but I haven't seen >> it in some time. >> >> As a matter of curiosity, have you been able to run a -j4 buildworld >> to completion on your RPI3? If so, please post your setup. For several >> months now all my attempts at j4 buildworld have failed with "killed, >> out of swap" even though top seems to report minimal swap usage. It >> even happens with no -j value set at all, but usually restarting with >> -DNO_CLEAN allowed progress to pick up where it left off. How do you ever run a -j4 buildworld? My RPI3 starts building clang/llvm with sometimes 500 MB+ per process so everything starts swapping like hell and takes forever to run. Regards, Ronald. >> >> Alas, as I write this, the kernel just reported >> >> Jun 1 08:34:34 www kernel: pid 19399 (c++), uid 0, was killed: out of >> swap space >> >> top is showing >> Swap: 4096M Total, 17M Used, 4079M Free >> but since top is alive the value is stale. Nonetheless, I have seen top >> killed while still showing minimal swap usage. >> >> It seems as if the "out of swap" kills are being issued in error.. >> >> Thanks for reading, >> >> bob prohaska >> > > > I just received my RPI3 this week. It is running GENERIC with debug > options still. Building a -NODEBUG kernel from src didn't succeed yet > because of the mentioned panic. > I'm now building with -j2 to be on the safe side. > > After I have the -NODEBUG kernel it will be a bit faster and I will try > -j4 again. > > Regards, > Ronald.
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