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[lwip-devel] [bug #23408] Deadlock on sys_mbox_post sys_mbox_fetch


From: Vadim G Melihow
Subject: [lwip-devel] [bug #23408] Deadlock on sys_mbox_post sys_mbox_fetch
Date: Wed, 28 May 2008 17:44:14 +0000
User-agent: Mozilla/5.0 (X11; U; Linux i686; ru; rv:1.8.1.4) Gecko/20060911 SUSE/2.0.0.4-1.2 Firefox/2.0.0.4

Follow-up Comment #8, bug #23408 (project lwip):

Comment #5 - a result of my negligence.  ;-)
Comment #6 -  much correctly.

i.e.
between
 sys_sem_signal(mbox->mutex); 
and
 sys_arch_sem_wait(mbox->mail, 0);
from function sys_arch_mbox_fetch, possibly multiple execution of function
sys_arch_mbox_post which can lock mbox->mail

Thats all. I think.







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