src: fix nullptr dereference for signal during startup#20637
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This fixes a test failure when running `test/parallel/test-child-process-spawnsync-kill-signal.js` under load. What would happen is that `SignalExit()` tries to shutdown the tracing agent, which might not have been set up by the point that Node.js receives the signal.
nodejs-github-bot added the c++ 
cjihrig approved these changes May 9, 2018
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helloshuangzi approved these changes May 9, 2018
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addaleax commented May 9, 2018
Please 👍 this comment to approve fast-tracking this PR. |
jasnell approved these changes May 9, 2018
tniessen approved these changes May 9, 2018
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gireeshpunathil commented May 10, 2018
ref: #11052 and #20414 as those are affected by the underlying issue too. @addaleax - while your nullcheck will solve the current issues, @bnoordhuis has challenged calling signal unsafe functions from signal handlers through #14802 , fyi. |
bnoordhuis approved these changes May 10, 2018
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@gireeshpunathil This PR doesn't fix the signal safety issue but it also doesn't make it worse.
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addaleax commented May 10, 2018
Landed in 5e6ca89 |
addaleax added a commit that referenced this pull request May 10, 2018
This fixes a test failure when running `test/parallel/test-child-process-spawnsync-kill-signal.js` under load. What would happen is that `SignalExit()` tries to shutdown the tracing agent, which might not have been set up by the point that Node.js receives the signal. PR-URL: #20637 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Tobias Nießen <[email protected]> Reviewed-By: Ben Noordhuis <[email protected]>
targos pushed a commit that referenced this pull request May 12, 2018
This fixes a test failure when running `test/parallel/test-child-process-spawnsync-kill-signal.js` under load. What would happen is that `SignalExit()` tries to shutdown the tracing agent, which might not have been set up by the point that Node.js receives the signal. PR-URL: #20637 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Tobias Nießen <[email protected]> Reviewed-By: Ben Noordhuis <[email protected]>
Merged
addaleax added a commit that referenced this pull request Jun 29, 2018
This fixes a test failure when running `test/parallel/test-child-process-spawnsync-kill-signal.js` under load. What would happen is that `SignalExit()` tries to shutdown the tracing agent, which might not have been set up by the point that Node.js receives the signal. PR-URL: #20637 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Tobias Nießen <[email protected]> Reviewed-By: Ben Noordhuis <[email protected]>
Merged
rvagg pushed a commit that referenced this pull request Aug 16, 2018
This fixes a test failure when running `test/parallel/test-child-process-spawnsync-kill-signal.js` under load. What would happen is that `SignalExit()` tries to shutdown the tracing agent, which might not have been set up by the point that Node.js receives the signal. PR-URL: #20637 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Tobias Nießen <[email protected]> Reviewed-By: Ben Noordhuis <[email protected]>
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This fixes a test failure when running
test/parallel/test-child-process-spawnsync-kill-signal.jsunder load. What would happen is that
SignalExit()triesto shutdown the tracing agent, which might not have been set
up by the point that Node.js receives the signal.
Example failure: https://ci.nodejs.org/job/node-test-commit-linux-containered/4300/nodes=ubuntu1604_sharedlibs_zlib_x64/consoleFull
Checklist
make -j4 test(UNIX), orvcbuild test(Windows) passes