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Date:      Mon, 8 Jul 2019 15:24:05 -0700
From:      bob prohaska <fbsd@www.zefox.net>
To:        freebsd-arm@freebsd.org
Subject:   Firefox dumps core on rpi3 at r349806
Message-ID:  <20190708222405.GA53084@www.zefox.net>

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Firefox has started causing a panic on a Pi3b+ running r349806. The
problem appeared about a week ago and has persisted since. The controlling
terminal reports:
bob@www:~ % firefox
console.error: "Could not write session state file " (new Error("_initWorker called too early! Please read the session file from disk first.", "resource:///modules/sessionstore/SessionFile.jsm", 334)) "_initWorker/<@resource:///modules/sessionstore/SessionFile.jsm:334:15\n_initWorker@resource:///modules/sessionstore/SessionFile.jsm:327:12\n_postToWorker@resource:///modules/sessionstore/SessionFile.jsm:351:11\nwrite@resource:///modules/sessionstore/SessionFile.jsm:390:19\nwrite@resource:///modules/sessionstore/SessionFile.jsm:63:12\n_writeState@resource:///modules/sessionstore/SessionSaver.jsm:356:12\n_saveState@resource:///modules/sessionstore/SessionSaver.jsm:294:12\n_saveStateAsync@resource:///modules/sessionstore/SessionSaver.jsm:340:5\nsaveStateAsyncWhenIdle@resource:///modules/sessionstore/SessionSaver.jsm:191:9\n"

###!!! [Parent][RunMessage] Error: Channel error: cannot send/recv


###!!! [Parent][RunMessage] Error: Channel error: cannot send/recv


###!!! [Parent][RunMessage] Error: Channel error: cannot send/recv


###!!! [Parent][RunMessage] Error: Channel error: cannot send/recv


###!!! [Parent][RunMessage] Error: Channel error: cannot send/recv


On the serial console one sees:

login: panic: Invalid l3 page (16000002c80074b != 16000002c8007cb)
cpuid = 3
time = 1562624166
KDB: stack backtrace:
db_trace_self() at db_trace_self_wrapper+0x28
	 pc = 0xffff00000070a038  lr = 0xffff000000102640
	 sp = 0xffff0000516eb250  fp = 0xffff0000516eb460

db_trace_self_wrapper() at vpanic+0x18c
	 pc = 0xffff000000102640  lr = 0xffff0000003f8aa0
	 sp = 0xffff0000516eb470  fp = 0xffff0000516eb520

vpanic() at panic+0x44
	 pc = 0xffff0000003f8aa0  lr = 0xffff0000003f8850
	 sp = 0xffff0000516eb530  fp = 0xffff0000516eb5b0

panic() at pmap_demote_l2_locked+0xb48
	 pc = 0xffff0000003f8850  lr = 0xffff00000071c808
	 sp = 0xffff0000516eb5c0  fp = 0xffff0000516eb660

pmap_demote_l2_locked() at pmap_ts_referenced+0x300
	 pc = 0xffff00000071c808  lr = 0xffff0000007226b8
	 sp = 0xffff0000516eb670  fp = 0xffff0000516eb6f0

pmap_ts_referenced() at vm_pageout_worker+0xed4
	 pc = 0xffff0000007226b8  lr = 0xffff0000006cb8b4
	 sp = 0xffff0000516eb700  fp = 0xffff0000516ebae0

vm_pageout_worker() at vm_pageout+0x15c
	 pc = 0xffff0000006cb8b4  lr = 0xffff0000006ca99c
	 sp = 0xffff0000516ebaf0  fp = 0xffff0000516ebb50

vm_pageout() at fork_exit+0x7c
	 pc = 0xffff0000006ca99c  lr = 0xffff0000003b9694
	 sp = 0xffff0000516ebb60  fp = 0xffff0000516ebb90

fork_exit() at fork_trampoline+0x10
	 pc = 0xffff0000003b9694  lr = 0xffff000000725b2c
	 sp = 0xffff0000516ebba0  fp = 0x0000000000000000

KDB: enter: panic
[ thread pid 21 tid 100066 ]
Stopped at      0
db> 

Thanks for reading, any suggestions appreciated!

bob prohaska




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