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[Bug 1000184] Ecos kernel data corrupted


http://bugs.ecos.sourceware.org/show_bug.cgi?id=1000184





------- Additional Comments From alexs@ecoscentric.com  2005-03-06 11:19 -------
Basavaraj.H.Kori <kori@dd.nec.com.au> wrote:

Hi,
 
Thank you for the quick response. The API "g_mbox_get " in the bug report refers
to "cyg_mbox_get". We are excepting "cyg_mbox_get"
to block till mailbox receives the message. This logic is developed to make sure
message box is not full & all the messages consumed properly.
I don't understand why it should not work.Both "cyg_mbox_get" &
"cyg_mbox_tryget" works fine if CYGNUM_KERNEL_SYNCH_MBOX_QUEUE_SIZE = 10.
I have tried the program sent by you, it works fine only if
"CYGNUM_KERNEL_SYNCH_MBOX_QUEUE_SIZE" is default(10). It fails(All threads dies)
after 2 to 3 cycles.when "CYGNUM_KERNEL_SYNCH_MBOX_QUEUE_SIZE = 50".
 
More info on kernel configuration:.
We have disabled following
1) Timers
2) Interrupts
3) Timeslicing for multilevel schedular.
We are expecting Ecos to work as " Round robin, non-premprive,multiple priority
schedular".
 
Please comment on why "cyg_mbox_get" can't work(it works fine with default
mailbox size 10).
 
Thanks & Regards,
Basavaraj.H.Kori



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