RemoteRef finalizer error #11500
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yuyichao opened this Issue on May 30, 2015 · 1 comment
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@yuyichao
The Julia Language member
yuyichao commented on May 30, 2015

When trying to debug the recent CI error on 64bit Linux, I noticed the following gc finalizer error when trying to run the parallel test twice with

yuyichao% JULIA_CPU_CORES=2 ./julia -f test/runtests.jl parallel parallel

I've got a lot of task switch not allowed in finalizer error.

The backtrace is (with some jl_apply_generic removed)

jl_switchto+0xb8
julia_yieldto_20241+0x48
julia_wait_17556+0x258
julia_wait_18672+0x18d
julia_stream_wait_18243+0xc4
julia_sleep_18220+0x1c7
julia_worker_from_id_18210+0x1ae
julia_send_del_client_20325+0xc0
jlcall_send_del_client_20325+0xc
jl_gc_collect+0x36c

Haven't dig further but I'm reporting it here now in case it is useful for someone else.
@yuyichao yuyichao changed the title from Finalier error to Finalizer error on May 30, 2015
@yuyichao
The Julia Language member
yuyichao commented on May 30, 2015

The code was introduced in 2cd8b2e#diff-970b8ffc9a51052f0ce2a6eaeb7cacd4R234

Is this (running two parallel test) a not supported usecase? In any case, I think this should either be fixed or give a better error...
@JeffBezanson JeffBezanson added bug parallel labels on May 30, 2015
@yuyichao yuyichao changed the title from Finalizer error to RemoteRef finalizer error on May 30, 2015
@JeffBezanson JeffBezanson added a commit that referenced this issue on May 30, 2015
	@JeffBezanson 	make worker_from_id always return without blocking
			472fd81
@JeffBezanson JeffBezanson referenced this issue on May 30, 2015
Merged
make worker_from_id always return without blocking #11503
@JeffBezanson JeffBezanson added a commit that referenced this issue on Jun 1, 2015
	@JeffBezanson 	make worker_from_id always return without blocking
			023df1f
@JeffBezanson JeffBezanson closed this in #11503 on Jun 1, 2015
@mbauman mbauman added a commit to mbauman/julia that referenced this issue on Jun 6, 2015
	@JeffBezanson 	make worker_from_id always return without blocking
			6a1b1f0
@tkelman tkelman added a commit to tkelman/julia that referenced this issue on Jun 6, 2015
	@JeffBezanson 	make worker_from_id always return without blocking