Closed Bug 1659042 Opened 4 years ago Closed 4 years ago

Permafailing /html/semantics/interactive-elements/the-dialog-element/dialog-showModal.html | application crashed [@ nsLineBreaker::AppendText(nsAtom*, unsigned char const*, unsigned int, unsigned int, nsILineBreakSink*)]

Categories

(Core :: DOM: Core & HTML, defect)

Product:
Core
Component:
DOM: Core & HTML
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED FIXED
Milestone:
81 Branch
Tracking Flags:
Tracking Status
firefox-esr68 --- unaffected
firefox-esr78 --- unaffected
firefox79 --- unaffected
firefox80 --- unaffected
firefox81 --- fixed

People

(Reporter: intermittent-bug-filer, Assigned: sefeng)

References

(Regression)

Details

(Keywords: crash, intermittent-failure, regression, Whiteboard: [stockwell fixed:backout])

Crash Data

Filed by: ncsoregi [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=312992055&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/RYy8LhpaRzKtzaNqrh12tA/runs/0/artifacts/public/logs/live_backing.log

[task 2020-08-14T03:49:36.378Z] 03:49:36 INFO - PROCESS-CRASH | /html/semantics/interactive-elements/the-dialog-element/dialog-showModal.html | application crashed [@ nsLineBreaker::AppendText(nsAtom*, unsigned char const*, unsigned int, unsigned int, nsILineBreakSink*)]
[task 2020-08-14T03:49:36.378Z] 03:49:36 INFO - Crash dump filename: /tmp/tmpUFSxhd/2b762930-f7b5-d3aa-3c6f-924561ff560b.dmp
[task 2020-08-14T03:49:36.378Z] 03:49:36 INFO - Operating system: Android
[task 2020-08-14T03:49:36.378Z] 03:49:36 INFO - 0.0.0 Linux 3.10.0+ #260 SMP PREEMPT Fri May 19 12:48:14 PDT 2017 x86_64
[task 2020-08-14T03:49:36.378Z] 03:49:36 INFO - CPU: amd64
[task 2020-08-14T03:49:36.378Z] 03:49:36 INFO - family 6 model 6 stepping 3
[task 2020-08-14T03:49:36.378Z] 03:49:36 INFO - 4 CPUs
[task 2020-08-14T03:49:36.378Z] 03:49:36 INFO -
[task 2020-08-14T03:49:36.378Z] 03:49:36 INFO - GPU: UNKNOWN
[task 2020-08-14T03:49:36.378Z] 03:49:36 INFO -
[task 2020-08-14T03:49:36.378Z] 03:49:36 INFO - Crash reason: SIGSEGV /SEGV_ACCERR
[task 2020-08-14T03:49:36.378Z] 03:49:36 INFO - Crash address: 0x75817db8cff8
[task 2020-08-14T03:49:36.378Z] 03:49:36 INFO - Process uptime: not available
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO -
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - Thread 11 (crashed)
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - 0 libxul.so!nsLineBreaker::AppendText(nsAtom*, unsigned char const*, unsigned int, unsigned int, nsILineBreakSink*) [nsLineBreaker.cpp:17df14f0b129dc1135027f1c1113d86436b5cf9c : 337 + 0x3]
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - rax = 0x0e365918cb3eab4e rdx = 0x000075817db8f170
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - rcx = 0x0000000000000001 rbx = 0x0000000000000004
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - rsi = 0x0000000000000000 rdi = 0x000075817db93608
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - rbp = 0x000075817db8e000 rsp = 0x000075817db8cfd0
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - r8 = 0x0000000000000004 r9 = 0x00007581648ab5c0
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - r10 = 0x00000000ffffefff r11 = 0xf874fa1f14c57b65
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - r12 = 0x0000000000000001 r13 = 0x000075817db93608
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - r14 = 0x0000000000000000 r15 = 0x000075817db8f170
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - rip = 0x0000758176a351d0
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - Found by: given as instruction pointer in context
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO -
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - Thread 0
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - 0 libc.so + 0x8c66a
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - rax = 0xfffffffffffffffc rdx = 0x0000000000000010
[task 2020-08-14T03:49:36.379Z] 03:49:36 INFO - rcx = 0xffffffffffffffff rbx = 0x00000000ffffffff
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - rsi = 0x00007fffca2a34c0 rdi = 0x000000000000001f
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - rbp = 0x00000000ffffffff rsp = 0x00007fffca2a3448
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - r8 = 0x0000000000000000 r9 = 0x0000000000000008
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - r10 = 0x00000000ffffffff r11 = 0x0000000000000246
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - r12 = 0x00000000ffffffff r13 = 0x0000758197729f40
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - r14 = 0x0000000000000000 r15 = 0x0000000000000000
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - rip = 0x000075819a90d66a
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - Found by: given as instruction pointer in context
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - 1 libc.so + 0x2a0e6
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - rsp = 0x00007fffca2a3450 rip = 0x000075819a8ab0e6
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - 2 libutils.so + 0x184e7
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - rsp = 0x00007fffca2a3470 rip = 0x000075819a6c34e7
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - 3 dalvik-LinearAlloc (deleted) + 0x9850
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - rsp = 0x00007fffca2a34a0 rip = 0x000075819ba36850
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.380Z] 03:49:36 INFO - 4 boot-framework.oat + 0x1000
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - rsp = 0x00007fffca2a34a8 rip = 0x0000000072f54000
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - 5 dalvik-main space (deleted) + 0x7af40
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - rsp = 0x00007fffca2a34c0 rip = 0x0000000012c7af40
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - 6 libart.so + 0x2d39f9
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - rsp = 0x00007fffca2a34e0 rip = 0x00007581971df9f9
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - 7 boot-framework.oat + 0x15bc3f0
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - rsp = 0x00007fffca2a34e8 rip = 0x000000007450f3f0
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - 8 libart.so + 0x4f1be9
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - rsp = 0x00007fffca2a34f0 rip = 0x00007581973fdbe9
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - 9 dalvik-LinearAlloc (deleted) + 0x9850
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - rsp = 0x00007fffca2a3500 rip = 0x000075819ba36850
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - 10 base.odex + 0x77d938
[task 2020-08-14T03:49:36.381Z] 03:49:36 INFO - rsp = 0x00007fffca2a3510 rip = 0x000075817ec0d938
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - 11 base.odex + 0x77d920
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - rsp = 0x00007fffca2a3518 rip = 0x000075817ec0d920
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - 12 libart.so + 0x39c37f
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - rsp = 0x00007fffca2a3560 rip = 0x00007581972a837f
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - 13 libart.so + 0x6e3c40
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - rsp = 0x00007fffca2a3568 rip = 0x00007581975efc40
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - 14 libutils.so + 0x1837b
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - rsp = 0x00007fffca2a35c0 rip = 0x000075819a6c337b
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - 15 system@framework@boot-framework.art + 0x3f5b10
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - rsp = 0x00007fffca2a35e8 rip = 0x0000000071695b10
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - 16 dalvik-main space (deleted) + 0x95d8
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - rsp = 0x00007fffca2a35f0 rip = 0x0000000012c095d8
[task 2020-08-14T03:49:36.382Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - 17 libandroid_runtime.so + 0xff856
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - rsp = 0x00007fffca2a3600 rip = 0x0000758198b85856
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - 18 system@framework@boot-framework.art + 0x3f5b10
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - rsp = 0x00007fffca2a3608 rip = 0x0000000071695b10
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - 19 boot-framework.oat + 0x1e17220
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - rsp = 0x00007fffca2a3620 rip = 0x0000000074d6a220
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - 20 dalvik-main space (deleted) + 0x7af40
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - rsp = 0x00007fffca2a3638 rip = 0x0000000012c7af40
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - 21 system@framework@boot.art + 0x3412c8
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - rsp = 0x00007fffca2a3640 rip = 0x0000000070df02c8
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - 22 system@framework@boot-framework.art + 0x3f5790
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - rsp = 0x00007fffca2a3648 rip = 0x0000000071695790
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - 23 system@framework@boot-framework.art + 0x3f5b10
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - rsp = 0x00007fffca2a36b0 rip = 0x0000000071695b10
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - 24 dalvik-main space (deleted) + 0x95d8
[task 2020-08-14T03:49:36.383Z] 03:49:36 INFO - rsp = 0x00007fffca2a36b8 rip = 0x0000000012c095d8
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - 25 boot-framework.oat + 0x1e19034
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - rsp = 0x00007fffca2a36c0 rip = 0x0000000074d6c034
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - 26 system@framework@boot-framework.art + 0x3f5b10
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - rsp = 0x00007fffca2a36c8 rip = 0x0000000071695b10
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - 27 system@framework@boot.art + 0x342bf0
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - rsp = 0x00007fffca2a36e8 rip = 0x0000000070df1bf0
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - 28 system@framework@boot.art + 0x1fd518
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - rsp = 0x00007fffca2a3710 rip = 0x0000000070cac518
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - 29 dalvik-main space (deleted) + 0x8b180
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - rsp = 0x00007fffca2a3730 rip = 0x0000000012c8b180
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - 30 system@framework@boot.art + 0x3412c8
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - rsp = 0x00007fffca2a3738 rip = 0x0000000070df02c8
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - 31 system@framework@boot.art + 0x1fd518
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - rsp = 0x00007fffca2a3740 rip = 0x0000000070cac518
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - 32 system@framework@boot-framework.art + 0x3ad778
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - rsp = 0x00007fffca2a3748 rip = 0x000000007164d778
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - 33 boot-framework.oat + 0x1e160c4
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - rsp = 0x00007fffca2a3780 rip = 0x0000000074d690c4
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - 34 system@framework@boot-framework.art + 0x39bd40
[task 2020-08-14T03:49:36.384Z] 03:49:36 INFO - rsp = 0x00007fffca2a3788 rip = 0x000000007163bd40
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - 35 dalvik-main space (deleted) + 0x95d8
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - rsp = 0x00007fffca2a3798 rip = 0x0000000012c095d8
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - 36 dalvik-main space (deleted) + 0x7af40
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - rsp = 0x00007fffca2a37a0 rip = 0x0000000012c7af40
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - 37 system@framework@boot.art + 0x3412c8
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - rsp = 0x00007fffca2a37a8 rip = 0x0000000070df02c8
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - 38 system@framework@boot.art + 0x1fd518
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - rsp = 0x00007fffca2a37b0 rip = 0x0000000070cac518
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - 39 system@framework@boot.art + 0x206668
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - rsp = 0x00007fffca2a37b8 rip = 0x0000000070cb5668
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - 40 boot-framework.oat + 0x1e12ab0
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - rsp = 0x00007fffca2a37c0 rip = 0x0000000074d65ab0
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - 41 system@framework@boot-framework.art + 0x32c2f0
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - rsp = 0x00007fffca2a37c8 rip = 0x00000000715cc2f0
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - 42 dalvik-main space (deleted) + 0x95d8
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - rsp = 0x00007fffca2a37d0 rip = 0x0000000012c095d8
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - 43 system@framework@boot.art + 0x3405c8
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - rsp = 0x00007fffca2a37f8 rip = 0x0000000070def5c8
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.385Z] 03:49:36 INFO - 44 dalvik-main space (deleted) + 0xbc0a0
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - rsp = 0x00007fffca2a3810 rip = 0x0000000012cbc0a0
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - 45 dalvik-main space (deleted) + 0x8b180
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - rsp = 0x00007fffca2a3820 rip = 0x0000000012c8b180
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - 46 system@framework@boot-framework.art + 0x419fd8
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - rsp = 0x00007fffca2a3840 rip = 0x00000000716b9fd8
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - 47 boot-framework.oat + 0x165ee53
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - rsp = 0x00007fffca2a3850 rip = 0x00000000745b1e53
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - 48 system@framework@boot-framework.art + 0x419fd8
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - rsp = 0x00007fffca2a3858 rip = 0x00000000716b9fd8
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - 49 dalvik-main space (deleted) + 0x82c20
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - rsp = 0x00007fffca2a3860 rip = 0x0000000012c82c20
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - Found by: stack scanning
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - 50 dalvik-main space (deleted) + 0x657e0
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - rsp = 0x00007fffca2a3868 rip = 0x0000000012c657e0
[task 2020-08-14T03:49:36.386Z] 03:49:36 INFO - Found by: stack scanning

The failures were caused by Bug 1200896.
Tried to backout Bug 1200896 + Bug 1653165 due to its Document.cpp ties, but there was another issue:

file testing/web-platform/meta/html/semantics/interactive-elements/the-dialog-element/inert-does-not-match-disabled-selector.html.ini already exists
1 out of 1 hunks FAILED -- saving rejects to file testing/web-platform/meta/html/semantics/interactive-elements/the-dialog-element/inert-does-not-match-disabled-selector.html.ini.rej
file testing/web-platform/meta/html/semantics/interactive-elements/the-dialog-element/inert-node-is-unfocusable.html.ini already exists
1 out of 1 hunks FAILED -- saving rejects to file testing/web-platform/meta/html/semantics/interactive-elements/the-dialog-element/inert-node-is-unfocusable.html.ini.rej

As per conversation on Matrix, leaving ni as a reminder.

Flags: needinfo?(sefeng)
Regressed by: 1200896
Summary: Intermittent /html/semantics/interactive-elements/the-dialog-element/dialog-showModal.html | application crashed [@ nsLineBreaker::AppendText(nsAtom*, unsigned char const*, unsigned int, unsigned int, nsILineBreakSink*)] → Permafailing /html/semantics/interactive-elements/the-dialog-element/dialog-showModal.html | application crashed [@ nsLineBreaker::AppendText(nsAtom*, unsigned char const*, unsigned int, unsigned int, nsILineBreakSink*)]
Has Regression Range: --- → yes
Keywords: regression

Fixed by the backout of Bug 1200896 (https://hg.mozilla.org/integration/autoland/rev/c1536d43de1a74641e282cb6fc9ae369e02003e3)

See https://bugzilla.mozilla.org/show_bug.cgi?id=1200896#c21

Status: NEW → RESOLVED
Closed: 4 years ago
Resolution: --- → FIXED
Whiteboard: [stockwell fixed:backout]

Removing my NI as we've successfully backed out the patch.

Flags: needinfo?(sefeng)
Assignee: nobody → sefeng
status-firefox79: --- → unaffected
status-firefox80: --- → unaffected
status-firefox81: --- → fixed
status-firefox-esr68: --- → unaffected
status-firefox-esr78: --- → unaffected
Target Milestone: --- → 81 Branch
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