Yeah, this is the crash that I've been banging my head on for days. On Fri, Jan 3, 2020, at 4:35 PM, Mark Millard wrote: > This is based on testing artifact.ci.freebsd.org > 32-bit powerpc materials on some (2 socket) G5s. > It is the later FreeBSD head revision that causes > an earlier boot-failure than the other one that I > recently reported. > > There are no 32-bit powerpc artifacts between > -r356109 and -r356118 (non-inclusive of either end). > This limits how specific the evidence is -- but also > avoids getting my personal builds involved as a > potential problem source. > > I'll note that -r356111 was for: > > Use LLVM as default toolchain for all PowerPC targets > > and -r356014 was for: > > [PowerPC] enable atomic.c in compiler_rt and do not check and forces > lock/lock_free decisions in compiled time > > (and would start to be put to use by -r356111 and > later). > > This suggests the possibility of atomic-activity > that is insufficient on the example G5 machines. > (I only have access to dual socket G5s.) But I've > no specific evidence about the llvm generated > code leads to the tfo_ccache_bucket panic. > > The crashes look like (typed from a screen > shot): > > . . . > Timecounters tick every 1.000 msec > firewire0: w nodes, maxhop <= 1 cable IRM irm(1) (me) > firewire0: bus manager 1 > . . . (1 or 2 lines that only sometimes show up, then) . . . > panic: lock "tfo_ccache_bucket" 0xd2858008 already initialized > cpuid = 0 > time = 1 > KDB: stack backtrace > 0xd00048b0: at kdb_backtrace+0x64 > 0xd0004910: at vpanic+0x200 > 0xd0004980: at panic+0x64 > 0xd00049c0: at lock_init+0x200 > 0xd00049d0: at _mtx_init+0x7c > 0xd00049f0: at tcp_fastopen_init+0x1e8 > 0xd0004a20: at tcp_init+0x234 > 0xd0004a50: at protosv_init+0x1d4 > 0xd0004a60: at vnet_domain_init+0x5c > 0xd0004a80: at vnet_register_sysinit+0x154 > 0xd0004ab0: at mi_startup+0x280 > 0xd0004af0: at btext+0x74 > KDB: enter: panic > [ thread pid 0 tid 100000 ] > Stopped at kdb_enter+0x74: addi r3,r0,0x0 > db> > > > === > Mark Millard > marklmi at yahoo.com > ( dsl-only.net went > away in early 2018-Mar) > >
-- Brandon Bergren bdra...@imap.cc _______________________________________________ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
