206627 2020-01-22 16:12:04 -0800 REGRESSION [ Mac wk2 ] Tests are jetsamming: Unable to shrink memory footprint of process below the kill thresold [sic] 2021-04-02 22:10:27 -0700 1 1 1 Unclassified WebKit SVG WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=206770 https://bugs.webkit.org/show_bug.cgi?id=224144 InRadar P2 Normal --- 1 jacob_uphoff webkit-unassigned ap cdumez sabouhallawa simon.fraser webkit-bot-watchers-bugzilla webkit-bug-importer zimmermann oldest_to_newest 1609832 0 jacob_uphoff 2020-01-22 16:12:04 -0800 svg/custom/conditional-processing-2.html is flaky crashing and this started around commit 254816 This crash is happening on Mojave wk2 I did not try to reproduce History: https://results.webkit.org/?suite=layout-tests&test=svg%2Fcustom%2Fconditional-processing-2.html Crasher: No crash log found for WebKitTestRunner:11765. stdout: layer at (0,0) size 800x600 RenderView at (0,0) size 800x600 layer at (0,0) size 800x162 RenderBlock {HTML} at (0,0) size 800x162 RenderBody {BODY} at (8,16) size 784x138 RenderBlock {P} at (0,0) size 784x18 RenderText {#text} at (0,0) size 329x18 text run at (0,0) width 329: "This test passes if four green squares are displayed:" RenderBlock (anonymous) at (0,34) size 784x104 RenderSVGRoot {svg} at (8,50) size 100x100 RenderSVGForeignObject {foreignObject} at (0,0) size 100x100 RenderBlock {SPAN} at (0,0) size 100x100 [bgcolor=#008000] RenderText {#text} at (0,0) size 0x0 RenderText {#text} at (100,86) size 4x18 text run at (100,86) width 4: " " RenderSVGRoot {svg} at (112,50) size 100x100 RenderSVGForeignObject {foreignObject} at (0,0) size 100x100 RenderMathMLMath {math} at (0,0) size 100x100 RenderMathMLSpace {mspace} at (0,0) size 100x100 [bgcolor=#008000] RenderText {#text} at (0,0) size 0x0 RenderText {#text} at (204,86) size 4x18 text run at (204,86) width 4: " " RenderSVGRoot {svg} at (216,50) size 100x100 RenderSVGForeignObject {foreignObject} at (0,0) size 100x100 RenderBlock {SPAN} at (0,0) size 100x100 RenderMathMLMath {math} at (0,0) size 100x100 RenderMathMLSpace {mspace} at (0,0) size 100x100 [bgcolor=#008000] RenderText {#text} at (0,0) size 0x0 RenderText {#text} at (0,0) size 0x0 RenderText {#text} at (308,86) size 4x18 text run at (308,86) width 4: " " RenderText {#text} at (0,0) size 0x0 RenderSVGRoot {svg} at (320,50) size 100x100 RenderSVGRect {rect} at (320,50) size 100x100 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00] RenderText {#text} at (0,0) size 0x0 stderr: Unable to shrink memory footprint of process (4150 MB) below the kill thresold (4096 MB). Killed #CRASHED - com.apple.WebKit.WebContent.Development (pid 19092) 1609834 1 webkit-bug-importer 2020-01-22 16:12:40 -0800 <rdar://problem/58815277> 1612300 2 simon.fraser 2020-01-28 18:53:16 -0800 This only seemed to happen once. 1612486 3 ap 2020-01-29 08:53:25 -0800 Looking just a little bit deeper, no, it's happening all the time, just on different test. This is the most recent test run at the moment: https://build.webkit.org/builders/Apple-Catalina-Release-WK2-Tests/builds/2521/steps/layout-test/logs/stdio 07:24:09.704 87914 worker/5 svg/custom/inline-style-overrides-markers-expected.svg crashed, (stderr lines): 07:24:09.704 87914 Unable to shrink memory footprint of process (4322 MB) below the kill thresold (4096 MB). Killed 07:24:09.704 87914 #CRASHED - com.apple.WebKit.WebContent.Development (pid 96223) 07:24:09.706 87856 [52288/52814] svg/custom/inline-style-overrides-markers.svg failed unexpectedly (WebKitTestRunner crashed [pid=95002]) 1612587 4 simon.fraser 2020-01-29 11:34:14 -0800 Maybe we can dump a memgraph when this happens? 1612689 5 ryanhaddad 2020-01-29 14:37:07 -0800 *** Bug 206937 has been marked as a duplicate of this bug. *** 1612718 6 ap 2020-01-29 15:09:24 -0800 > Maybe we can dump a memgraph when this happens? I don't think that we can take a memgraph after the process gets jetsammed. 1612736 7 simon.fraser 2020-01-29 15:38:43 -0800 If ChromeClient implements didExceedBackgroundResourceLimitWhileInForeground, then we IPC the UI process which can kill the web process if it wants to. So in WTR, we could register this handler (avoiding the instant kill in webcontent), and log something which triggers webkitpy to take a memgraph. 1614903 8 ryanhaddad 2020-02-04 19:23:23 -0800 Since this jetsam was reproducible by running Web SQL tests, and those tests were being run on the same worker as the blamed SVG tests, I skipped storage/websql tests for iOS and macOS WK2 with https://trac.webkit.org/changeset/255783/webkit