increase in crashes in sse2_blt starting in 49.0b7

NEW
Unassigned

Status

()

Core
Graphics
P3
critical
2 years ago
a year ago

People

(Reporter: dbaron, Unassigned)

Tracking

({crash})

unspecified
x86
Windows 7
crash
Points:
---

Firefox Tracking Flags

(firefox49 wontfix, firefox50 affected, firefox51 affected)

Details

(Whiteboard: gfx-noted, crash signature)

(Reporter)

Description

2 years ago
This bug was filed from the Socorro interface and is 
report bp-bd946405-b964-42aa-b669-c426f2160902.
=============================================================

There are substantially more crashes with signature [@ sse2_blt] in 49.0b7 and 49.0b8 than there were in previous releases.  See queries at https://crash-stats.mozilla.com/signature/?product=Firefox&date=%3E2016-05-01&signature=sse2_blt#aggregations

They have somewhat similar hardware patterns as the crashes in bug 1296630, but different patterns in terms of which releases they're in.
(Reporter)

Updated

2 years ago
status-firefox49: --- → affected
Didn't we enable SSE recently, which could explain these?
Whiteboard: gfx-noted
(Reporter)

Comment 3

2 years ago
I now think it's more likely that this is the same problem as bug 1296630.
(Reporter)

Comment 4

2 years ago
(In reply to Mason Chang [:mchang] from comment #2)
> Didn't we enable SSE recently, which could explain these?

What was it exactly that was enabled, and was it in the 49 cycle?
Flags: needinfo?(mchang)
(Reporter)

Comment 5

2 years ago
(Is bug 1296630 comment 55 what you meant?)
(In reply to David Baron :dbaron: ⌚️UTC-7 (busy September 14-25) from comment #5)
> (Is bug 1296630 comment 55 what you meant?)

Yup looks like it.
Flags: needinfo?(mchang)
Priority: -- → P3
No longer a topcrash but still being reported, down 81% since peak in September:
> 53.*:  0 reports in the last week
> 52.*:  0 reports in the last week
> 51.*: 18 reports in the last week
> 50.*: 69 reports in the last week
> 49.*:  2 reports in the last week
status-firefox49: affected → wontfix
status-firefox50: --- → affected
status-firefox51: --- → affected
Keywords: topcrash
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