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Re: [microblaze-uclinux] 10 msec number of ticks bug..

Hi john,
Is this problem still exist. I have a code base that is 4-5 months
old. I could reproduce this problem in my board. Is there a fix or i
should use signal() instead of sigaction().

Thanx
- Prasad

On 6/9/06, Bret Ketchum <bret.ketchum@xxxxxxxxxxxxxxxxxxx> wrote:


        My mistake. After further review, uClinux behaves properly (read
like regular old Linux) with socket and files io calls when interrupted by
signals. But using sigaction hangs the system. I've attached a test
application. And the recipe is:

1. compile the program testd.c
2. run testd in the background  -  testd &
3. send sigusr1 to testd process - kill -10 testd_pid
4. then the system will be hung.

The test application works if we use sighandler instead of sigaction

        Bret


-----Original Message-----
From: owner-microblaze-uclinux@xxxxxxxxxxxxxx
[mailto:owner-microblaze-uclinux@xxxxxxxxxxxxxx] On Behalf Of John Williams
Sent: Thursday, June 08, 2006 11:02 PM
To: microblaze-uclinux@xxxxxxxxxxxxxx
Subject: Re: [microblaze-uclinux] 10 msec number of ticks bug..

Bret,

Bret Ketchum wrote:

>       Speaking of timers and their handling, is it true that sigaction is
> not working in the microblaze flavor of uClinux, only sighandler? That
> signals (particularly alarm signals) abort io calls (poll/read/write) and
> are not restarted, or is that true when called with a timeout only? I'm
> using an old copy of uClinux out of CVS, maybe these items have been
looked
> into or that's just life. Thanks in advance for any hints.

Can you post some short test code that displays divergent behaviour on
mb-uclinux vs regular linux (or another arch-flavour of uclinux)?

Thanks,

John
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