Hi,
This is an example of what happens with unmodified rate-monotonic
scheduler. The fts is a user process (server) that communicates with
RT tasks via shared memory. It worked for quite some time (10+
minutes) before crashing. Since I tried everything that came to my
mind to avoid crashes like this one with a modified version of the
scheduler, it seems that it had already been broken. The reason for
crashes is (incoming) network traffic; after the message below, many
more would appear.
I found a couple of previous messages on this list about problems with
the rate-monotonic scheduler. Could someone please help?
Thanks,
Aleks
> general protection: 0000
> CPU: 0
> EIP: 0010:[<0014a1b2>]
> EFLAGS: 00010217
> eax: f000e987 ebx: 00000000 ecx: 02dfb03c edx: f000f84d
> esi: 02dfb0d8 edi: 679e90e7 ebp: 02dfb018 esp: 028a1ee8
> ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
> Process fts (pid: 437, process nr: 32, stackpage=028a1000)
> Stack: 02dfb018 02e41f00 010be7b4 02e41f90 00000000 02dfb03c 00000b68
> 02633c0c
> 02e41f48 579f7dcc 001547d1 02dfb018 028a1f6c 00002531 00000000
> 00000000
> 028a1f70 010be7b4 0013bd8a 02e41f90 028a1f6c 00003099 00000000
> 00000000
> Call Trace: [<001547d1>] [<0013bd8a>] [<0013c951>] [<0010abfd>]
> Code: 8a 40 0d a8 02 74 01 4f 39 7b 30 0f 87 b9 00 00 00 a8 01 0f
> Warning: kfree_skb passed an skb that nobody set the free flag on!
> (from 02855e20)
> Segmentation fault
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