Re: [CRASH] in tulip driver?

From: Andrew Morton (akpm@zip.com.au)
Date: Wed Jul 10 2002 - 22:34:56 EST


kuznet@ms2.inr.ac.ru wrote:
>
> Hello!
>
> > Any ideas what is causing the following crash?
>
> There is no BUG() in sched.c:579 or in vicinity of this line.
>
> So, the only idea is that the crash is caused by patches which
> you applied to the kernel. :-)
>

whoops. I think the "-ll" means low-latency. But the only
finger I have in that pie is:

--- 2.4.19-pre6/drivers/char/random.c~low-latency Fri Apr 5 12:11:17 2002
+++ 2.4.19-pre6-akpm/drivers/char/random.c Fri Apr 5 12:11:17 2002
@@ -1369,6 +1369,11 @@ static ssize_t extract_entropy(struct en
                buf += i;
                ret += i;
                add_timer_randomness(&extract_timer_state, nbytes);
+#if LOWLATENCY_NEEDED
+ /* This can happen in softirq's, but that's what we want */
+ if (conditional_schedule_needed())
+ break;
+#endif
        }
 
        /* Wipe data just returned from memory */

So it's a bit of a mystery. It seems to think that it has
EXTRACT_ENTROPY_USER.

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