Filed by: malexandru [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=316462800&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Oij_7fQURDC6sxWPqPbGXQ/runs/0/artifacts/public/logs/live_backing.log

[task 2020-09-23T09:24:13.899Z] 09:24:13 INFO - TEST-START | devtools/client/jsonview/test/browser_jsonview_valid_json.js
[task 2020-09-23T09:24:13.941Z] 09:24:13 INFO - GECKO(1952) | [Child 2313: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 0x7f7013450000 == 2 [pid = 2313] [id = 19]
[task 2020-09-23T09:24:13.941Z] 09:24:13 INFO - GECKO(1952) | [Child 2313: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 9 (0x7f70134b0090) [pid = 2313] [serial = 56] [outer = (nil)]
[task 2020-09-23T09:24:13.941Z] 09:24:13 INFO - GECKO(1952) | [Child 2313: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 10 (0x7f70134b6c00) [pid = 2313] [serial = 57] [outer = 0x7f70134b0090]
[task 2020-09-23T09:24:14.090Z] 09:24:14 INFO - GECKO(1952) | [Child 2313: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 11 (0x7f70134c3000) [pid = 2313] [serial = 58] [outer = 0x7f70134b0090]
[task 2020-09-23T09:24:14.118Z] 09:24:14 INFO - GECKO(1952) | [Child 2313, Main Thread] WARNING: Subsequent listeners are not retargetable: file /builds/worker/checkouts/gecko/netwerk/protocol/http/HttpChannelChild.cpp, line 2854
[task 2020-09-23T09:24:14.119Z] 09:24:14 INFO - GECKO(1952) | [Child 2313, Main Thread] WARNING: Failed to retarget HTML data delivery to the parser thread.: file /builds/worker/checkouts/gecko/parser/html/nsHtml5StreamParser.cpp, line 1132
[task 2020-09-23T09:24:14.275Z] 09:24:14 INFO - GECKO(1952) | [Child 2224: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 14 (7f28a3ca99a0) [pid = 2224] [serial = 47] [outer = 0] [url = data:application/json,[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271]
[task 2020-09-23T09:24:14.276Z] 09:24:14 INFO - GECKO(1952) | [Child 2224: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 13 (0x7f28a3ca9090) [pid = 2224] [serial = 50] [outer = (nil)] [url = data:application/manifest+json,3]
[task 2020-09-23T09:24:14.447Z] 09:24:14 INFO - GECKO(1952) | [Child 2379: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 3 (0x7fbf8e95c400) [pid = 2379] [serial = 23] [outer = (nil)] [url = http://example.com/browser/devtools/client/jsonview/test/simple_json.json]
[task 2020-09-23T09:24:14.447Z] 09:24:14 INFO - GECKO(1952) | [Child 2379: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0x7fbf8cf6b000 == 0 [pid = 2379] [id = 8] [url = http://example.com/]
[task 2020-09-23T09:24:14.670Z] 09:24:14 INFO - GECKO(1952) | [Child 2224: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 12 (7f28a5753c00) [pid = 2224] [serial = 49] [outer = 0] [url = data:application/json,[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271]
[task 2020-09-23T09:24:14.674Z] 09:24:14 INFO - GECKO(1952) | [Child 2224: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 11 (0x7f28a344d400) [pid = 2224] [serial = 54] [outer = (nil)] [url = about:blank]
[task 2020-09-23T09:24:14.682Z] 09:24:14 INFO - GECKO(1952) | [Child 2224: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 10 (0x7f28a344b800) [pid = 2224] [serial = 51] [outer = (nil)] [url = about:blank]
[task 2020-09-23T09:24:14.682Z] 09:24:14 INFO - GECKO(1952) | [Child 2224: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 9 (0x7f28a4b71400) [pid = 2224] [serial = 52] [outer = (nil)] [url = data:application/manifest+json,3]
[task 2020-09-23T09:24:14.682Z] 09:24:14 INFO - GECKO(1952) | [Child 2224: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 8 (0x7f28a5751400) [pid = 2224] [serial = 59] [outer = (nil)] [url = about:blank]
[task 2020-09-23T09:24:14.682Z] 09:24:14 INFO - GECKO(1952) | [Child 2224: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0x7f28a22cd000 == 0 [pid = 2224] [id = 24] [url = about:blank]
[task 2020-09-23T09:24:14.858Z] 09:24:14 INFO - GECKO(1952) | [Child 2224: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 7 (0x7f28a3ca9430) [pid = 2224] [serial = 53] [outer = (nil)] [url = http://example.com/browser/devtools/client/jsonview/test/empty.html]
[task 2020-09-23T09:24:14.859Z] 09:24:14 INFO - GECKO(1952) | [Child 2224: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 6 (0x7f28a3ca9600) [pid = 2224] [serial = 58] [outer = (nil)] [url = http://example.com/browser/devtools/client/jsonview/test/valid_json.json]
[task 2020-09-23T09:24:14.860Z] 09:24:14 INFO - GECKO(1952) | [Child 2224: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 5 (0x7f28a3ca9260) [pid = 2224] [serial = 56] [outer = (nil)] [url = about:blank]
[task 2020-09-23T09:24:15.279Z] 09:24:15 INFO - GECKO(1952) | [Child 2117: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0x7fb8b95a5000 == 1 [pid = 2117] [id = 24] [url = http://example.com/]
[task 2020-09-23T09:24:15.280Z] 09:24:15 INFO - GECKO(1952) | [Child 2117: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 12 (0x7fb8b95a9800) [pid = 2117] [serial = 57] [outer = (nil)] [url = about:blank]
[task 2020-09-23T09:24:15.280Z] 09:24:15 INFO - GECKO(1952) | [Child 2117: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 11 (0x7fb8b95a5800) [pid = 2117] [serial = 50] [outer = (nil)] [url = about:blank]
[task 2020-09-23T09:24:15.281Z] 09:24:15 INFO - GECKO(1952) | [Child 2117: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 10 (0x7fb8b95a5c00) [pid = 2117] [serial = 55] [outer = (nil)] [url = about:blank]
[task 2020-09-23T09:24:15.281Z] 09:24:15 INFO - GECKO(1952) | [Child 2117: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 9 (0x7fb8ba9b0000) [pid = 2117] [serial = 58] [outer = (nil)] [url = data:application/json,{"a/b":[1,2],"a":{"b":[3,4]}}]
[task 2020-09-23T09:24:15.282Z] 09:24:15 INFO - GECKO(1952) | [Child 2117: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 8 (0x7fb8b95a9400) [pid = 2117] [serial = 53] [outer = (nil)] [url = data:application/json,2]
[task 2020-09-23T09:24:15.282Z] 09:24:15 INFO - GECKO(1952) | [Child 2117: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 7 (0x7fb8b95a2800) [pid = 2117] [serial = 52] [outer = (nil)] [url = about:blank]
[task 2020-09-23T09:24:15.342Z] 09:24:15 INFO - GECKO(1952) | [Child 2117: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 6 (0x7fb8b953b7d0) [pid = 2117] [serial = 59] [outer = (nil)] [url = about:blank]
[task 2020-09-23T09:24:15.708Z] 09:24:15 INFO - GECKO(1952) | MEMORY STAT | vsize 3446MB | residentFast 387MB | heapAllocated 121MB
[task 2020-09-23T09:24:15.708Z] 09:24:15 INFO - TEST-OK | devtools/client/jsonview/test/browser_jsonview_valid_json.js | took 1801ms
[task 2020-09-23T09:24:15.713Z] 09:24:15 INFO - GECKO(1952) | [Child 2224: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 0x7f28a22c6000 == 1 [pid = 2224] [id = 25]
[task 2020-09-23T09:24:15.714Z] 09:24:15 INFO - GECKO(1952) | [Child 2224: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 6 (0x7f28a3ca9090) [pid = 2224] [serial = 63] [outer = (nil)]
[task 2020-09-23T09:24:15.715Z] 09:24:15 INFO - GECKO(1952) | [Child 2224: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 7 (0x7f28a22c7000) [pid = 2224] [serial = 64] [outer = 0x7f28a3ca9090]
[task 2020-09-23T09:24:15.759Z] 09:24:15 INFO - checking window state
[task 2020-09-23T09:24:15.815Z] 09:24:15 INFO - GECKO(1952) | [Parent 1952: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 11 (0x7f244fd62000) [pid = 1952] [serial = 16] [outer = 0x7f2470869bc0]
[task 2020-09-23T09:24:15.871Z] 09:24:15 INFO - GECKO(1952) | [Parent 1952, Main Thread] WARNING: NS_ENSURE_TRUE(presShell) failed: file /builds/worker/checkouts/gecko/dom/base/nsGlobalWindowOuter.cpp, line 4275
[task 2020-09-23T09:24:16.676Z] 09:24:16 INFO - GECKO(1952) | [Child 2446: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0x7ff7d4638000 == 0 [pid = 2446] [id = 3] [url = http://example.com/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]
[task 2020-09-23T09:24:16.692Z] 09:24:16 INFO - GECKO(1952) | [Child 2476: Main Thread]: I/DocShellAndDOMWindowLeak --DOCSHELL 0x7fb929e37c00 == 0 [pid = 2476] [id = 3] [url = http://example.com/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]
[task 2020-09-23T09:24:16.699Z] 09:24:16 INFO - GECKO(1952) | [Child 2379: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 2 (0x7fbf8cf6dc00) [pid = 2379] [serial = 25] [outer = (nil)] [url = about:blank]
[task 2020-09-23T09:24:16.702Z] 09:24:16 INFO - GECKO(1952) | [Child 2117: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 5 (0x7fb8ba9b4000) [pid = 2117] [serial = 60] [outer = (nil)] [url = about:blank]
[task 2020-09-23T09:24:16.710Z] 09:24:16 INFO - GECKO(1952) | [Child 2117: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 4 (0x7fb8b95ab800) [pid = 2117] [serial = 62] [outer = (nil)] [url = about:blank]
<...>
[task 2020-09-23T09:24:29.232Z] 09:24:29 INFO - mozcrash Copy/paste: /builds/worker/fetches/minidump_stackwalk/minidump_stackwalk /tmp/tmpko04fY.mozrunner/minidumps/1f9ac61f-a080-e32b-2d13-903fb8ce1901.dmp /builds/worker/workspace/build/symbols
[task 2020-09-23T09:24:33.459Z] 09:24:33 INFO - mozcrash Saved minidump as /builds/worker/workspace/build/blobber_upload_dir/1f9ac61f-a080-e32b-2d13-903fb8ce1901.dmp
[task 2020-09-23T09:24:33.495Z] 09:24:33 INFO - PROCESS-CRASH | Main app process exited normally | application crashed [@ mozilla::LinkedList<js::ParseTask>::~LinkedList()]
[task 2020-09-23T09:24:33.495Z] 09:24:33 INFO - Crash dump filename: /tmp/tmpko04fY.mozrunner/minidumps/1f9ac61f-a080-e32b-2d13-903fb8ce1901.dmp
[task 2020-09-23T09:24:33.496Z] 09:24:33 INFO - Operating system: Linux
[task 2020-09-23T09:24:33.496Z] 09:24:33 INFO - 0.0.0 Linux 4.4.0-1014-aws #14taskcluster1-Ubuntu SMP Tue Apr 3 10:27:00 UTC 2018 x86_64
[task 2020-09-23T09:24:33.496Z] 09:24:33 INFO - CPU: amd64
[task 2020-09-23T09:24:33.496Z] 09:24:33 INFO - family 6 model 85 stepping 7
[task 2020-09-23T09:24:33.496Z] 09:24:33 INFO - 2 CPUs
[task 2020-09-23T09:24:33.496Z] 09:24:33 INFO -
[task 2020-09-23T09:24:33.497Z] 09:24:33 INFO - GPU: UNKNOWN
[task 2020-09-23T09:24:33.498Z] 09:24:33 INFO -
[task 2020-09-23T09:24:33.499Z] 09:24:33 INFO - Crash reason: SIGSEGV /SEGV_MAPERR
[task 2020-09-23T09:24:33.499Z] 09:24:33 INFO - Crash address: 0x0
[task 2020-09-23T09:24:33.500Z] 09:24:33 INFO - Process uptime: not available
[task 2020-09-23T09:24:33.500Z] 09:24:33 INFO -
[task 2020-09-23T09:24:33.500Z] 09:24:33 INFO - Thread 0 (crashed)
[task 2020-09-23T09:24:33.500Z] 09:24:33 INFO - 0 libxul.so!mozilla::LinkedList<js::ParseTask>::~LinkedList() [LinkedList.h:11d40183d5d0ae969337f66adbbc64f85b032d4a : 439 + 0x36]
[task 2020-09-23T09:24:33.500Z] 09:24:33 INFO - rax = 0x0000559c75ee3ed8 rdx = 0x0000000000000000
[task 2020-09-23T09:24:33.505Z] 09:24:33 INFO - rcx = 0x0000000000000b40 rbx = 0x0000559c75ee3ee0
[task 2020-09-23T09:24:33.505Z] 09:24:33 INFO - rsi = 0x00007f20029da8b0 rdi = 0x00007f20029d9680
[task 2020-09-23T09:24:33.505Z] 09:24:33 INFO - rbp = 0x00007fff1056e110 rsp = 0x00007fff1056e100
[task 2020-09-23T09:24:33.506Z] 09:24:33 INFO - r8 = 0x00007f20029da8b0 r9 = 0x00007f20038d0780
[task 2020-09-23T09:24:33.506Z] 09:24:33 INFO - r10 = 0x0000000000000000 r11 = 0x0000000000000000
[task 2020-09-23T09:24:33.506Z] 09:24:33 INFO - r12 = 0x00007fff1056e168 r13 = 0x00007fff1056e298
[task 2020-09-23T09:24:33.507Z] 09:24:33 INFO - r14 = 0x0000000000000000 r15 = 0x0000000000000000
[task 2020-09-23T09:24:33.507Z] 09:24:33 INFO - rip = 0x00007f1ff5f7d633
[task 2020-09-23T09:24:33.507Z] 09:24:33 INFO - Found by: given as instruction pointer in context
[task 2020-09-23T09:24:33.508Z] 09:24:33 INFO - 1 libxul.so!js::GlobalHelperThreadState::~GlobalHelperThreadState() [HelperThreadState.h:11d40183d5d0ae969337f66adbbc64f85b032d4a : 74 + 0x82]
[task 2020-09-23T09:24:33.508Z] 09:24:33 INFO - rbx = 0x00007f1fe6708400 rbp = 0x00007fff1056e130
[task 2020-09-23T09:24:33.508Z] 09:24:33 INFO - rsp = 0x00007fff1056e120 r12 = 0x00007fff1056e168
[task 2020-09-23T09:24:33.509Z] 09:24:33 INFO - r13 = 0x00007fff1056e298 r14 = 0x0000000000000000
[task 2020-09-23T09:24:33.510Z] 09:24:33 INFO - r15 = 0x0000000000000000 rip = 0x00007f1ff5f7cd52
[task 2020-09-23T09:24:33.510Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.510Z] 09:24:33 INFO - 2 libxul.so!JS_ShutDown() [Initialization.cpp:11d40183d5d0ae969337f66adbbc64f85b032d4a : 237 + 0x25]
[task 2020-09-23T09:24:33.510Z] 09:24:33 INFO - rbx = 0x00007f1fe6708400 rbp = 0x00007fff1056e150
[task 2020-09-23T09:24:33.510Z] 09:24:33 INFO - rsp = 0x00007fff1056e140 r12 = 0x00007fff1056e168
[task 2020-09-23T09:24:33.510Z] 09:24:33 INFO - r13 = 0x00007fff1056e298 r14 = 0x0000000000000000
[task 2020-09-23T09:24:33.510Z] 09:24:33 INFO - r15 = 0x0000000000000000 rip = 0x00007f1ff5f6b23d
[task 2020-09-23T09:24:33.510Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.511Z] 09:24:33 INFO - 3 libxul.so!mozilla::ShutdownXPCOM(nsIServiceManager*) [XPCOMInit.cpp:11d40183d5d0ae969337f66adbbc64f85b032d4a : 742 + 0x5]
[task 2020-09-23T09:24:33.511Z] 09:24:33 INFO - rbx = 0x00007fff1056e178 rbp = 0x00007fff1056e200
[task 2020-09-23T09:24:33.511Z] 09:24:33 INFO - rsp = 0x00007fff1056e160 r12 = 0x00007fff1056e168
[task 2020-09-23T09:24:33.511Z] 09:24:33 INFO - r13 = 0x00007fff1056e298 r14 = 0x0000000000000000
[task 2020-09-23T09:24:33.511Z] 09:24:33 INFO - r15 = 0x0000000000000000 rip = 0x00007f1ff1c5ab5a
[task 2020-09-23T09:24:33.511Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.511Z] 09:24:33 INFO - 4 libxul.so!XRE_TermEmbedding() [nsEmbedFunctions.cpp:11d40183d5d0ae969337f66adbbc64f85b032d4a : 223 + 0x7]
[task 2020-09-23T09:24:33.511Z] 09:24:33 INFO - rbx = 0x00007f20021cc940 rbp = 0x00007fff1056e220
[task 2020-09-23T09:24:33.511Z] 09:24:33 INFO - rsp = 0x00007fff1056e210 r12 = 0x00007fff1056f6d8
[task 2020-09-23T09:24:33.511Z] 09:24:33 INFO - r13 = 0x00007fff1056e298 r14 = 0x000000000000000d
[task 2020-09-23T09:24:33.511Z] 09:24:33 INFO - r15 = 0x0000000080004005 rip = 0x00007f1ff5ba8855
[task 2020-09-23T09:24:33.512Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.512Z] 09:24:33 INFO - 5 libxul.so!mozilla::ipc::ScopedXREEmbed::Stop() [ScopedXREEmbed.cpp:11d40183d5d0ae969337f66adbbc64f85b032d4a : 90 + 0x5]
[task 2020-09-23T09:24:33.516Z] 09:24:33 INFO - rbx = 0x00007f20021cc940 rbp = 0x00007fff1056e240
[task 2020-09-23T09:24:33.517Z] 09:24:33 INFO - rsp = 0x00007fff1056e230 r12 = 0x00007fff1056f6d8
[task 2020-09-23T09:24:33.517Z] 09:24:33 INFO - r13 = 0x00007fff1056e298 r14 = 0x000000000000000d
[task 2020-09-23T09:24:33.517Z] 09:24:33 INFO - r15 = 0x0000000080004005 rip = 0x00007f1ff22599bf
[task 2020-09-23T09:24:33.518Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.518Z] 09:24:33 INFO - 6 libxul.so!XRE_InitChildProcess(int, char**, XREChildData const*) [nsEmbedFunctions.cpp:11d40183d5d0ae969337f66adbbc64f85b032d4a : 748 + 0xe]
[task 2020-09-23T09:24:33.519Z] 09:24:33 INFO - rbx = 0x00007f20021cc000 rbp = 0x00007fff1056e530
[task 2020-09-23T09:24:33.519Z] 09:24:33 INFO - rsp = 0x00007fff1056e250 r12 = 0x00007fff1056f6d8
[task 2020-09-23T09:24:33.519Z] 09:24:33 INFO - r13 = 0x00007fff1056e298 r14 = 0x000000000000000d
[task 2020-09-23T09:24:33.519Z] 09:24:33 INFO - r15 = 0x0000000080004005 rip = 0x00007f1ff5ba8e39
[task 2020-09-23T09:24:33.519Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.520Z] 09:24:33 INFO - 7 firefox-bin!content_process_main(mozilla::Bootstrap*, int, char**) [plugin-container.cpp:11d40183d5d0ae969337f66adbbc64f85b032d4a : 56 + 0x11]
[task 2020-09-23T09:24:33.520Z] 09:24:33 INFO - rbx = 0x000000000000000f rbp = 0x00007fff1056e570
[task 2020-09-23T09:24:33.520Z] 09:24:33 INFO - rsp = 0x00007fff1056e540 r12 = 0x00007fff1056e540
[task 2020-09-23T09:24:33.520Z] 09:24:33 INFO - r13 = 0x00007fff1056f6d0 r14 = 0x00007fff1056f6d8
[task 2020-09-23T09:24:33.520Z] 09:24:33 INFO - r15 = 0x00007f20021026d0 rip = 0x0000559c75e4380a
[task 2020-09-23T09:24:33.521Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.521Z] 09:24:33 INFO - 8 firefox-bin!main [nsBrowserApp.cpp:11d40183d5d0ae969337f66adbbc64f85b032d4a : 304 + 0x20]
[task 2020-09-23T09:24:33.521Z] 09:24:33 INFO - rbx = 0x0000000000000000 rbp = 0x00007fff1056f5f0
[task 2020-09-23T09:24:33.521Z] 09:24:33 INFO - rsp = 0x00007fff1056e580 r12 = 0x0000559c75e436b0
[task 2020-09-23T09:24:33.521Z] 09:24:33 INFO - r13 = 0x00007fff1056f6d0 r14 = 0x0000559c75ee2e68
[task 2020-09-23T09:24:33.522Z] 09:24:33 INFO - r15 = 0x000000d802cc766c rip = 0x0000559c75e43b86
[task 2020-09-23T09:24:33.522Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.522Z] 09:24:33 INFO - 9 libc.so.6 + 0x21b97
[task 2020-09-23T09:24:33.522Z] 09:24:33 INFO - rbx = 0x0000000000000000 rbp = 0x0000559c75edeb00
[task 2020-09-23T09:24:33.522Z] 09:24:33 INFO - rsp = 0x00007fff1056f600 r12 = 0x0000559c75e436b0
[task 2020-09-23T09:24:33.522Z] 09:24:33 INFO - r13 = 0x00007fff1056f6d0 r14 = 0x0000000000000000
[task 2020-09-23T09:24:33.522Z] 09:24:33 INFO - r15 = 0x0000000000000000 rip = 0x00007f200260eb97
[task 2020-09-23T09:24:33.522Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.522Z] 09:24:33 INFO - 10 firefox-bin!mozilla::UniquePtr<mozilla::Bootstrap, mozilla::Bootstrap::BootstrapDelete>::~UniquePtr() [UniquePtr.h:11d40183d5d0ae969337f66adbbc64f85b032d4a : 253 + 0x1f]
[task 2020-09-23T09:24:33.522Z] 09:24:33 INFO - rsp = 0x00007fff1056f620 rip = 0x0000559c75e43855
[task 2020-09-23T09:24:33.522Z] 09:24:33 INFO - Found by: stack scanning
[task 2020-09-23T09:24:33.522Z] 09:24:33 INFO -
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - Thread 1
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - 0 libc.so.6 + 0x11b959
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - rax = 0xfffffffffffffffc rdx = 0x0000000000000020
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - rcx = 0x00007f2002708959 rbx = 0x0000000000000000
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - rsi = 0x00007f200218e200 rdi = 0x000000000000000b
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - rbp = 0x00007f2002346af0 rsp = 0x00007f2002346aa8
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - r8 = 0x0000000000000800 r9 = 0x00007f2002346ad0
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - r10 = 0x00000000ffffffff r11 = 0x0000000000000246
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - r12 = 0x00007f2002102860 r13 = 0x00007f2002128000
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - r14 = 0x00007f2002128000 r15 = 0x00007f200218e200
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - rip = 0x00007f2002708959
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - Found by: given as instruction pointer in context
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - 1 libxul.so!event_base_loop [event.c:11d40183d5d0ae969337f66adbbc64f85b032d4a : 1947 + 0xd]
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - rbp = 0x00007f2002346b80 rsp = 0x00007f2002346b00
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - rip = 0x00007f1ff2216fd9
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - Found by: previous frame's frame pointer
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - 2 libxul.so!base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) [message_pump_libevent.cc:11d40183d5d0ae969337f66adbbc64f85b032d4a : 344 + 0x1b]
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - rbx = 0x00007f2002346cb0 rbp = 0x00007f2002346bf0
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - rsp = 0x00007f2002346b90 r12 = 0x00007f2002138200
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - r13 = 0x0000000000000000 r14 = 0x00007f2002122fc0
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - r15 = 0x00007f2002122fd8 rip = 0x00007f1ff2205375
[task 2020-09-23T09:24:33.523Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - 3 libxul.so!MessageLoop::RunInternal() [message_loop.cc:11d40183d5d0ae969337f66adbbc64f85b032d4a : 334 + 0x17]
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - rbx = 0x00007f2002346cb0 rbp = 0x00007f2002346c30
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - rsp = 0x00007f2002346c00 r12 = 0x00007f2002138278
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - r13 = 0x0000000000000000 r14 = 0x00007f2002346c40
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - r15 = 0x00007f20021382a0 rip = 0x00007f1ff22036a5
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - 4 libxul.so!MessageLoop::Run() [message_loop.cc:11d40183d5d0ae969337f66adbbc64f85b032d4a : 309 + 0x8]
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - rbx = 0x00007f2002346cb0 rbp = 0x00007f2002346c70
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - rsp = 0x00007f2002346c40 r12 = 0x00007f2002138278
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - r13 = 0x0000000000000000 r14 = 0x00007f2002346c40
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - r15 = 0x00007f20021382a0 rip = 0x00007f1ff22035ff
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - 5 libxul.so!base::Thread::ThreadMain() [thread.cc:11d40183d5d0ae969337f66adbbc64f85b032d4a : 192 + 0x8]
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - rbx = 0x0000000000000000 rbp = 0x00007f2002346ea0
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - rsp = 0x00007f2002346c80 r12 = 0x00007f2002138278
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - r13 = 0x0000000000000000 r14 = 0x00007f2002346cb0
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - r15 = 0x00007f20021382a0 rip = 0x00007f1ff220e4e0
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - 6 libxul.so!ThreadFunc(void*) [platform_thread_posix.cc:11d40183d5d0ae969337f66adbbc64f85b032d4a : 40 + 0x6]
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - rbx = 0x0000000000000000 rbp = 0x00007f2002346eb0
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - rsp = 0x00007f2002346eb0 r12 = 0x00007f2002346f80
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - r13 = 0x0000000000000000 r14 = 0x00007f2002138278
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - r15 = 0x00007fff1056e070 rip = 0x00007f1ff220a4b7
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - 7 libpthread.so.0 + 0x76db
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - rbx = 0x0000000000000000 rbp = 0x0000000000000000
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - rsp = 0x00007f2002346ec0 r12 = 0x00007f2002346f80
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - r13 = 0x0000000000000000 r14 = 0x00007f2002138278
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - r15 = 0x00007fff1056e070 rip = 0x00007f20035286db
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - Found by: call frame info
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - 8 libc.so.6 + 0x121a3f
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - rsp = 0x00007f2002346f80 rip = 0x00007f200270ea3f
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - Found by: stack scanning
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO -
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - Thread 2
[task 2020-09-23T09:24:33.524Z] 09:24:33 INFO - 0 libc.so.6 + 0x114cf9

Yoshi, any thoughts on this?

Might need to run something like js::CancelOffThreadParses() somewhere at the beginning of shutdown so we don't try to dispatch a runnable when main thread event processing is finished.

(In reply to Jason Orendorff [:jorendorff] from comment #2)

Yoshi, any thoughts on this?

Denis should be a better person to answer this, since he has been working on bug 1652126, and bug 1661555

I've tried reproducing this on try, but it seems to occur too rarely so will need to fix it blindly. We could try registering a shutdown observer in the scriptLoader that cancels all active requests so the runnables don't get dispatched past that point.

Register a shutdown observer for scriptloader and cancel all script load requests upon observation.

It seems this can also be occur from the compilations dispatched by ChromeScriptLoader as well. I was able to reproduce one of those crashes on try coincidentally:

[task 2020-11-16T17:30:57.045Z] 17:30:57  WARNING -  PROCESS-CRASH | xpcshell-remote.ini:toolkit/components/extensions/test/xpcshell/test_ext_contentscript_async_loading.js | application crashed [@ NS_DispatchToMainThread(already_AddRefed<nsIRunnable>&&, unsigned int)]
[task 2020-11-16T17:30:57.046Z] 17:30:57     INFO -  Crash dump filename: /tmp/xpc-other-M0qQpX/06521011-38c8-0e46-4150-cb03267b8068.dmp
[task 2020-11-16T17:30:57.046Z] 17:30:57     INFO -  Operating system: Linux
[task 2020-11-16T17:30:57.047Z] 17:30:57     INFO -                    0.0.0 Linux 4.4.0-1014-aws #14taskcluster1-Ubuntu SMP Tue Apr 3 10:27:00 UTC 2018 x86_64
[task 2020-11-16T17:30:57.047Z] 17:30:57     INFO -  CPU: amd64
[task 2020-11-16T17:30:57.047Z] 17:30:57     INFO -       family 6 model 85 stepping 4
[task 2020-11-16T17:30:57.048Z] 17:30:57     INFO -       2 CPUs
[task 2020-11-16T17:30:57.048Z] 17:30:57     INFO -  GPU: UNKNOWN
[task 2020-11-16T17:30:57.049Z] 17:30:57     INFO -  Crash reason:  SIGSEGV /SEGV_MAPERR
[task 2020-11-16T17:30:57.049Z] 17:30:57     INFO -  Crash address: 0x0
[task 2020-11-16T17:30:57.050Z] 17:30:57     INFO -  Process uptime: not available
[task 2020-11-16T17:30:57.051Z] 17:30:57     INFO -  Thread 4 (crashed)
[task 2020-11-16T17:30:57.051Z] 17:30:57     INFO -   0  plugin-container!mozalloc_abort 
...
...
...
[task 2020-11-16T17:30:57.063Z] 17:30:57     INFO -   5  libxul.so!OffThreadScriptLoaderCallback(JS::OffThreadToken*, void*) [ChromeScriptLoader.cpp:5c6b4a59452f787bb0012febf43a0d04472d51a6 : 133 + 0x2c]
[task 2020-11-16T17:30:57.063Z] 17:30:57     INFO -      rbx = 0x00007f46d3dfdf70   rbp = 0x00007f46d3dfdfa0
[task 2020-11-16T17:30:57.064Z] 17:30:57     INFO -      rsp = 0x00007f46d3dfdf60   r12 = 0x0000000000000000
[task 2020-11-16T17:30:57.064Z] 17:30:57     INFO -      r13 = 0x0000000000000000   r14 = 0x00007f46d3dfdf60
[task 2020-11-16T17:30:57.064Z] 17:30:57     INFO -      r15 = 0x00007f46d3dfdf68   rip = 0x00007f46eb107481
[task 2020-11-16T17:30:57.064Z] 17:30:57     INFO -      Found by: call frame info

So this may also need a shutdown observer to cancel off thread compilations.

https://hg.mozilla.org/mozilla-central/rev/989f0197c8e9