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Re: rcs configure hang

From: Paul Eggert
Subject: Re: rcs configure hang
Date: Thu, 5 Nov 2020 09:57:15 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0

On 10/27/20 8:36 AM, Kelly Wang (kellythw) wrote:
You are right, after remove confdir3, rerun strace hang.
Checked tr output, it stopped at bunch of mkdir and chdir and no further steps 
after that.
mkdir("confdir3", 0700)                 = 0
chdir("confdir3")                       = 0

How many chdir("confdir3") calls were there, exactly? On my platform there were 1367.

My guess is that the getcwd system call hung on your platform, which suggests a kernel or filesystem bug somewhere.

What happens if you run the attached conftest.c instead? It's the same as before, except with an 'alarm (10)' call. As before, run it like this in your development directory:

rm -fr conftest3
gcc conftest.c
strace -o tr ./a.out

and see how 'tr' ends if it hangs (which I hope it doesn't).

Attachment: conftest.c
Description: Text Data

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