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Bug #20743
openruby doesn't properly split RUBY_DEBUG_LOG_FILTER into items
Status:
Open
Assignee:
-
Target version:
-
ruby -v:
ruby 3.4.0dev (2024-09-15T01:06:11Z master 532af89e3b) +PRISM [x86_64-linux-musl]
Description
$ docker run --rm alpine:3.20.3 sh -euxc '
apk add git build-base autoconf ruby yaml-dev zlib-dev openssl-dev libffi-dev
git clone https://github.com/ruby/ruby
cd ruby
git checkout 532af89e3b5b78dd3a6fe29c6cc64ad1b073afe2
./autogen.sh
./configure cflags=-DUSE_RUBY_DEBUG_LOG --disable-install-doc
make -j8 install
ruby -v
RUBY_DEBUG_LOG=stderr RUBY_DEBUG_LOG_FILTER=rb_thread_schedule_limits,rb_ractor_thread_switch ruby -e ""
'
...
+ RUBY_DEBUG_LOG=stderr RUBY_DEBUG_LOG_FILTER=rb_thread_schedule_limits,rb_ractor_thread_switch ruby -e
RUBY_DEBUG_LOG=stderr [stderr]
RUBY_DEBUG_LOG_FILTER[0]=rb_thread_schedule_limit (all)
RUBY_DEBUG_LOG_FILTER[1]=rb_ractor_thread_switch (all)
...
As you can see ruby
reports that RUBY_DEBUG_LOG_FILTER[0]
equals rb_thread_schedule_limit
, not rb_thread_schedule_limits
.
This happens because here:
https://github.com/ruby/ruby/blob/532af89e3b5b78dd3a6fe29c6cc64ad1b073afe2/debug.c#L353
1
should not be subtracted.
Also in the following lines str
is increased, but len
is not decreased. It makes sense to recheck if there are no further mistakes.
Updated by x-yuri (Yuri Kanivetsky) about 2 months ago
Apparently introduced in the following commit:
https://github.com/ruby/ruby/commit/5a4f997b2e8e819ed40731cd769826112072a9d4#diff-1cae4f3b0e13ea38a331366fa5370f5648b2c37090a19e8fba9b8e921c36f505R369
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