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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - REGRESSION(r192599): It made 34 JSC tests crash on ARM Linux"
href="https://bugs.webkit.org/show_bug.cgi?id=151440">151440</a>
</td>
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<tr>
<th>Summary</th>
<td>REGRESSION(r192599): It made 34 JSC tests crash on ARM Linux
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>Other
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Unspecified
</td>
</tr>
<tr>
<th>OS</th>
<td>Unspecified
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>Critical
</td>
</tr>
<tr>
<th>Priority</th>
<td>P1
</td>
</tr>
<tr>
<th>Component</th>
<td>JavaScriptCore
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>ossy@webkit.org
</td>
</tr>
<tr>
<th>CC</th>
<td>ggaren@apple.com, mark.lam@apple.com
</td>
</tr>
<tr>
<th>Blocks</th>
<td>108645, 151415
</td>
</tr></table>
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<pre><a href="https://trac.webkit.org/changeset/192599">https://trac.webkit.org/changeset/192599</a> made 34 JSC stress tests
crash at least on ARM Linux platforms. (ARMv7 - ARM and Thumb2
instruction sets too; AArch64)
Maybe these tests fail on iOS too, but unfortunately
there is no public iOS buildbot, so I don't know.
- <a href="https://build.webkit.org/builders/EFL%20Linux%20ARMv7%20Traditional%20Release/builds/16061">https://build.webkit.org/builders/EFL%20Linux%20ARMv7%20Traditional%20Release/builds/16061</a>
- <a href="https://build.webkit.org/builders/EFL%20Linux%20ARMv7%20Thumb2%20Release/builds/16212">https://build.webkit.org/builders/EFL%20Linux%20ARMv7%20Thumb2%20Release/builds/16212</a>
- <a href="https://build.webkit.org/builders/EFL%20Linux%20AArch64%20Release/builds/4416">https://build.webkit.org/builders/EFL%20Linux%20AArch64%20Release/builds/4416</a>
(note: there were 25-30 failures on AArch64 before this change)
** The following JSC stress test failures have been introduced:
jsc-layout-tests.yaml/js/script-tests/dfg-arguments-alias-one-block-osr-exit.js.layout
jsc-layout-tests.yaml/js/script-tests/dfg-arguments-alias-one-block-osr-exit.js.layout-dfg-eager-no-cjit
jsc-layout-tests.yaml/js/script-tests/dfg-arguments-alias-one-block-osr-exit.js.layout-no-cjit
jsc-layout-tests.yaml/js/script-tests/dfg-arguments-alias-one-block-osr-exit.js.layout-no-llint
jsc-layout-tests.yaml/js/script-tests/dfg-arguments-alias-one-block-overwrite-arguments.js.layout
jsc-layout-tests.yaml/js/script-tests/dfg-arguments-alias-one-block-overwrite-arguments.js.layout-dfg-eager-no-cjit
jsc-layout-tests.yaml/js/script-tests/dfg-arguments-alias-one-block-overwrite-arguments.js.layout-no-cjit
jsc-layout-tests.yaml/js/script-tests/dfg-arguments-alias-one-block-overwrite-arguments.js.layout-no-llint
jsc-layout-tests.yaml/js/script-tests/dfg-double-use-of-post-simplification-double-prediction.js.layout
jsc-layout-tests.yaml/js/script-tests/dfg-double-use-of-post-simplification-double-prediction.js.layout-dfg-eager-no-cjit
jsc-layout-tests.yaml/js/script-tests/dfg-double-use-of-post-simplification-double-prediction.js.layout-no-cjit
jsc-layout-tests.yaml/js/script-tests/dfg-double-use-of-post-simplification-double-prediction.js.layout-no-llint
regress/script-tests/v8-raytrace-with-empty-try-catch.js.dfg-maximal-flush-validate-no-cjit
stress/double-rep-with-null.js.always-trigger-copy-phase
stress/double-rep-with-null.js.default
stress/double-rep-with-undefined.js.dfg-maximal-flush-validate-no-cjit
stress/double-rep-with-undefined.js.no-cjit-validate-phases
stress/double-rep-with-undefined.js.no-llint
stress/op_add.js.always-trigger-copy-phase
stress/op_add.js.default
stress/op_add.js.dfg-eager
stress/op_add.js.dfg-eager-no-cjit-validate
stress/op_add.js.dfg-maximal-flush-validate-no-cjit
stress/op_add.js.no-cjit-validate-phases
stress/op_add.js.no-llint
stress/op_sub.js.always-trigger-copy-phase
stress/op_sub.js.default
stress/op_sub.js.dfg-eager
stress/op_sub.js.dfg-eager-no-cjit-validate
stress/op_sub.js.dfg-maximal-flush-validate-no-cjit
stress/op_sub.js.no-cjit-validate-phases
stress/op_sub.js.no-llint
stress/v8-raytrace-strict.js.dfg-maximal-flush-validate-no-cjit
v8-v6/v8-raytrace.js.dfg-maximal-flush-validate-no-cjit
I'll try to create debug backtraces in the following week to help fixing this regression.</pre>
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