Date: Fri, 30 Aug 2019 16:47:24 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 240213] Firefox compilation fails due to node.js crashing (SIGBUS) due to a HMI event Message-ID: <bug-240213-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240213 Bug ID: 240213 Summary: Firefox compilation fails due to node.js crashing (SIGBUS) due to a HMI event Product: Base System Version: CURRENT Hardware: powerpc OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: gustavo.romero@protonmail.com Currently Firefox compilation inside poudriere is falling (please see full log attached firefox-68.0.2_1,1.log) due to a SIGBUS caught on node.js executable 'node'. ports head used is: [root@p9 //usr/obj/tree2]# git log --oneline -1 f47d97e0e832 (HEAD -> master, origin/master, origin/HEAD) Get rid of the deprecated @exec and @unexec dmesg shows something like: Hypervisor Maintenance Event received(Severity 0, type 1, HMER: 2040000000000000). pid 2551 (node), jid 479, uid 65534: exited on signal 10 (core dumped) 'node' itself looks to crash at different instructions, mostly load/store ones but in one case a trivial compare instruction, which does not access any position in the storage, was also found, as I believe, to generated the HMI event: (gdb) x/i $pc => 0x109d9258 <._ZN2v88internal9Scavenger14ScavengeObjectINS0_18FullHeapObjectSlotEEENS0_18SlotCallbackResultET_NS0_10HeapObjectE+1048>: std r29,0(r9) (gdb) x/i $pc => 0x109d8e68 <._ZN2v88internal9Scavenger14ScavengeObjectINS0_18FullHeapObjectSlotEEENS0_18SlotCallbackResultET_NS0_10HeapObjectE+40>: ld r9,0(r26) (gdb) x/pi $pc => 0x812d646c8: cmpdi r3,0 (gdb) x/i $pc => 0x109debcc <._ZN2v88internal9Scavenger7ProcessEPNS0_14OneshotBarrierE+5228>: ld r9,8(r9) On inspecting the OPAL ring buffer the following can be found: [213443.350925782,7] HMI: Received HMI interrupt: HMER = 0x2040000000000000 [213443.350954904,7] HMI: Core WOF = 0x0000000020000000 recovered error: [213443.350956412,7] HMI: LSU - SLB multi hit (please see attached logs for all details, including how to grab the log using 'pdbg') Although the HMI severity is 0 (see above) meaning it can safely be ignored as a CPU event critical event, one of the causes for a "HMI: LSU - SLB multi hit" are duplicated entries in SLB which are hit once a EA (Effective Address) is looked up in to the SLB, so it apparently points to some MM issue on FreeBSD kernel. I'll proceed to create (hopefully) a test case to hit the issue outside the node.js. -- You are receiving this mail because: You are the assignee for the bug.help
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