[Chicken-janitors] #1058: Strange bugs in openssl egg (or core?)

[Chicken Trac]

#1058: Strange bugs in openssl egg (or core?)
-----------------------------------+----------------------------------------
 Reporter:  sjamaan                |       Owner:  chust
     Type:  defect                 |      Status:  new  
 Priority:  major                  |   Milestone:  4.9.0
Component:  unknown                |     Version:  4.8.x
 Keywords:  crash, panic, openssl  |  
-----------------------------------+----------------------------------------
 We've seen that henrietta-cache occasionally, but consistently shows
 strange behaviour.  It appears this happens only for HTTPS URIs, so I've
 done some investigating and can reproduce a situation which could be
 related:

 {{{
 #!scm
 (use http-client extras)

 (let lp ()
   (print (with-input-from-request (car (command-line-arguments)) #f read-
 file))
   (lp))
 }}}

 Just call the program like this:

 {{{
 csi -s foo.scm https://bitbucket.org/sjamaan/henrietta-cache/raw/tip
 /henrietta-cache.release-info
 }}}

 Then press {{{^C}}} after the program has seemed to make a connection.

 You'll generally get a panic in the scheduler that says "fdset-set:
 invalid i/o direction: ssl-mutex (fd = 15)" (with today's master; before
 you just got the message without more info).  It appears the ssl-mutex
 ''somehow'' ends up in the fd-set upon which the thread will wait for I/O.
 This is most likely due to some corruption elsewhere, but it's unclear
 where exactly.

 This ''may'' be related to #989 (ie, it could be a signal handling issue).
 Mario has [[http://paste.call-
 cc.org/paste?id=3afab8fc3c4af312b5b0711cee1b922620b5ad7e#a1 observed]]
 occasional segfaults instead of panics.

-- 
Ticket URL: <http://bugs.call-cc.org/ticket/1058>
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