NEW 196399
[WPE][JSC] Jetstream2 crash on ARMv7 
https://bugs.webkit.org/show_bug.cgi?id=196399
Summary [WPE][JSC] Jetstream2 crash on ARMv7
Philippe Normand
Reported 2019-03-29 08:40:34 PDT
The not so useful backtrace I have so far: Thread 1 "WPEWebProcess" received signal SIGSEGV, Segmentation fault. 0x7092acf8 in ?? () (gdb) bt #0 0x7092acf8 in ?? () #1 0x7674f9c0 in operationStrCat3 () from target:/usr/lib/libWPEWebKit-1.0.so.3 #2 0x00000018 in ?? () Backtrace stopped: previous frame identical to this frame (corrupt stack?)
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Philippe Normand
Comment 1 2019-03-29 08:42:15 PDT
The crashing benchmark seems to be WSJ. Disabling the DFG JIT works around the issue but renders the whole thing unusable because too slow.
Caio Lima
Comment 2 2019-04-29 13:01:16 PDT
I'm investigating it.
Caio Lima
Comment 3 2019-04-29 13:05:00 PDT
It looks like a bug on tail calls corrupting stack on some cases. I'm trying to get a simple case to reproduce the bug, but I was able to run "WSL" on JSC command line setting "--useTailCall=false".
Alejandro G. Castro
Comment 4 2020-04-13 02:26:34 PDT
Any update in this problem, we are checking in the rpi3 and the test crashes very early.
Caio Lima
Comment 5 2020-04-29 04:59:58 PDT
WSL issue should be fixed after https://trac.webkit.org/changeset/258143 landed. I'm able to run it into JetStream 2 CLI. However, due to memory constraints, I'm unable to run the entire JetStream2 without OOM in my rpi device.
Alejandro G. Castro
Comment 6 2020-04-29 07:24:23 PDT
Just checked, the WSL crash is fixed for me in the rpi device too.
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