Ruby Issue Tracking System

10/03/2025

04:59 PM Ruby Feature #21221 (Closed): Proposal to upstream ZJIT

alanwu (Alan Wu)

10/02/2025

04:09 PM Ruby Revision 20fc91df (git): YJIT: Prevent making a branch from a dead block to a live block

I'm seeing some memory corruption in the wild on blocks in
`IseqPayload::dead_blocks`. While I unfortunately can't re... alanwu (Alan Wu)

09/30/2025

06:08 PM Ruby Revision 14fce274 (git): CI: Fail the dump crash log step for visual reminder

I forgot that this step existed and thought crash reporting wasn't
working when they were simply moved to a different... alanwu (Alan Wu)

01:17 AM Ruby Bug #21565 (Feedback): YJIT has panicked in rails

Ruby 3.4.6 includes more information with `--yjit-dump-disasm`, so no need to apply the patch from above if you can u... alanwu (Alan Wu)

09/29/2025

05:04 PM Ruby Revision 7a187385 (git): ZJIT: Remove RefCell from IseqCall

No point taking the panic risks with RefCell when most fields in it are
already in a Cell. Put `iseq` in a Cell and w... alanwu (Alan Wu)

09/25/2025

10:36 PM Ruby Revision 00e6c101 (git): ZJIT: Standardize to `Iterator::map` in `Invariants::update_references`

The old code was doing a manual HashSet/HashMap rebuild, and there isn't
a clear performance advantage over `Iterator... alanwu (Alan Wu)

10:36 PM Ruby Revision adfa784e (git): ZJIT: Forget about dead ISEQs in `Invariants`

Without this, we crash during reference update. alanwu (Alan Wu)

10:36 PM Ruby Revision 6ea75573 (git): ZJIT: Reference update `Invariant::cme_patch_points`

alanwu (Alan Wu)

10:36 PM Ruby Revision 63483e75 (git): ZJIT: Actually call rb_zjit_root_update_references()

Previously unused. alanwu (Alan Wu)

10:36 PM Ruby Revision 328d2037 (git): ZJIT: Remove dead CMEs from `Invariants`

alanwu (Alan Wu)