From: Arjan Filius <iafilius@xs4all.nl>
To: Robert Love <rml@tech9.net>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: Feedback on preemptible kernel patch
Date: Sun, 9 Sep 2001 23:23:44 +0200 (CEST) [thread overview]
Message-ID: <Pine.LNX.4.33.0109092317330.16723-100000@sjoerd.sjoerdnet> (raw)
In-Reply-To: <1000055386.15956.2.camel@phantasy>
Hi,
After my succes report i _do_ noticed something unusual:
I'm not sure it's preempt related, but you wanted feedback :)
Sep 9 23:08:02 sjoerd kernel: __alloc_pages: 0-order allocation failed (gfp=0x70/1).
Sep 9 23:08:02 sjoerd last message repeated 93 times
Sep 9 23:08:02 sjoerd kernel: cation failed (gfp=0x70/1).
Sep 9 23:08:02 sjoerd kernel: __alloc_pages: 0-order allocation failed (gfp=0x70/1).
Sep 9 23:08:02 sjoerd last message repeated 281 times
This is at the very moment i make a ppp connection to internet, and
get/set the time with netdate (for the first time after a reboot).
I didn't see this a second time (yet).
Btw this is 2.4.10-pre4+preempt-patch+pacht-below.
Greetings,
On 9 Sep 2001, Robert Love wrote:
> Arjan,
>
> the following patch was written by Manfred Spraul to fix your highmem
> bug. I haven't had a chance to go over it, but I would like it if you
> could test it. It can't hurt. Patch it on top of the preempt patch and
> enable CONFIG_PREEMPT, CONFIG_HIGHMEM, and CONFIG_HIGHMEM_DEBUG.
>
> let me know what happens...any relevant messages, etc. please pass
> along. if it does work, id be curious if they are any slowdowns
>
>
> --- highmem.h.prev Sun Sep 9 08:59:04 2001
> +++ highmem.h Sun Sep 9 09:00:07 2001
> @@ -88,6 +88,7 @@
> if (page < highmem_start_page)
> return page_address(page);
>
> + ctx_sw_off();
> idx = type + KM_TYPE_NR*smp_processor_id();
> vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
> #if HIGHMEM_DEBUG
> @@ -119,6 +120,7 @@
> pte_clear(kmap_pte-idx);
> __flush_tlb_one(vaddr);
> #endif
> + ctx_sw_on();
> }
>
> #endif /* __KERNEL__ */
>
>
>
>
--
Arjan Filius
mailto:iafilius@xs4all.nl
next prev parent reply other threads:[~2001-09-09 21:24 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-08 5:22 Feedback on preemptible kernel patch grue
2001-09-08 5:47 ` Robert Love
2001-09-08 17:33 ` Arjan Filius
2001-09-08 18:22 ` safemode
2001-09-08 20:58 ` [SMP lock BUG?] " Roger Larsson
2001-09-08 22:18 ` Arjan Filius
2001-09-09 14:55 ` george anzinger
2001-09-09 22:25 ` Arjan Filius
2001-09-09 4:40 ` Robert Love
2001-09-09 17:09 ` Robert Love
2001-09-09 21:07 ` Arjan Filius
2001-09-09 21:26 ` Robert Love
2001-09-09 21:23 ` Arjan Filius [this message]
2001-09-09 21:37 ` Robert Love
2001-09-10 3:24 ` Daniel Phillips
2001-09-10 3:37 ` Jeremy Zawodny
2001-09-10 5:09 ` Robert Love
2001-09-10 18:25 ` Daniel Phillips
2001-09-10 21:29 ` Arjan Filius
2001-09-13 17:27 ` Robert Love
2001-09-14 7:30 ` george anzinger
2001-09-14 15:01 ` Robert Love
2001-09-11 19:47 ` Arjan Filius
2001-09-09 18:57 ` grue
2001-09-09 21:44 ` Robert Love
2001-09-11 22:53 Robert Love
2001-09-14 2:47 Dieter Nützel
[not found] <200109150444.f8F4iEG19063@zero.tech9.net>
[not found] ` <200109140302.f8E32LG13400@zero.tech9.net>
2001-09-14 4:35 ` Robert Love
2001-09-15 4:25 ` Dieter Nützel
2001-09-15 5:14 ` Robert Love
2001-09-18 4:06 ` Dieter Nützel
2001-09-18 8:35 ` Daniel Phillips
2001-09-18 18:18 ` Roger Larsson
2001-09-18 23:31 ` Robert Love
2001-09-20 6:40 ` Dieter Nützel
2001-09-18 23:31 ` Robert Love
[not found] <Pine.LNX.4.33.0109140838040.21992-100000@sjoerd.sjoerdnet>
2001-09-14 15:04 ` Robert Love
2001-09-15 9:44 ` Arjan Filius
2001-09-15 10:38 ` Erik Mouw
2001-09-15 17:57 ` Robert Love
2001-09-15 19:18 Robert Love
2001-09-16 1:28 ` Daniel Phillips
2001-09-16 1:54 ` Daniel Phillips
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