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Re: emacs gets stuck in wait_reading_process_output sometimes

From: joakim
Subject: Re: emacs gets stuck in wait_reading_process_output sometimes
Date: Wed, 11 Jun 2008 21:56:09 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux)

David Kastrup <address@hidden> writes:

> address@hidden writes:
>> #0  0x00110422 in __kernel_vsyscall ()
>> #1  0x00cb85bd in ___newselect_nocancel () from /lib/libc.so.6
>> #2  0x081adc25 in select_wrapper (n=-514, rfd=0x0, wfd=0xbfd5a178, xfd=0x0, 
>> tmo=0xbfd5a2a8) at process.c:4204
>> #3  0x081b0e3f in wait_reading_process_output (time_limit=0, 
>> microsecs=10000, read_kbd=0, do_display=0, wait_for_cell=137764129, 
>> wait_proc=0xb819ca0, just_wait_proc=0) at process.c:4587
>> #4  0x081b2de7 in Faccept_process_output (process=193043620, seconds=0, 
>> millisec=80, just_this_one=137764129) at process.c:3946
>> This only happens sometimes.
>> I have a small elisp wrapper for fetchmail, and I think the stuckness
>> might happen when fetchmail exits, but I'm not sure.
>> Any hints how to debug this better when it happens?
> Can you check whether it is related to the setting of
> process-adaptive-read-buffering?  I seem to remember that tramp
> explicitly disabled it to get rid of large inexplicable delays, so it is
> not unlikely that there is still some bug lurking in there.

Thanks, I will take a look next time it happens.
Joakim Verona

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