From: Ingo Molnar <mingo@elte.hu>
To: "Michael J. Cohen" <mjc@unre.st>
Cc: "K.R. Foley" <kr@cybsft.com>,
sboyce@blueyonder.co.uk, linux-kernel@vger.kernel.org
Subject: Re: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm2-V0.7.7
Date: Thu, 4 Nov 2004 12:45:45 +0100 [thread overview]
Message-ID: <20041104114545.GA3722@elte.hu> (raw)
In-Reply-To: <1099567061.7911.4.camel@localhost>
* Michael J. Cohen <mjc@unre.st> wrote:
> Turned off the debugging stuff to fix this one :/
>
> might_sleep issue at swap_on and firefox causes oopsen.
>
> dmesg is 120k+ so here:
>
> http://325i.org/software/2.6.10-rc1-mm2-RT-V0.7.8.dmesg
does the patch below fix the fbcon problem? (if any new oops happens or
old one triggers again then please re-post the syslog or serial console
capture)
Ingo
--- linux/drivers/video/console/fbcon.c.orig
+++ linux/drivers/video/console/fbcon.c
@@ -1051,7 +1051,14 @@ static void fbcon_cursor(struct vc_data
struct display *p = &fb_display[vc->vc_num];
int y = real_y(p, vc->vc_y);
int c = scr_readw((u16 *) vc->vc_pos);
+#ifdef CONFIG_PREEMPT_REALTIME
+ unsigned long flags;
+#endif
+#ifdef CONFIG_PREEMPT_REALTIME
+ local_save_flags(flags);
+ local_irq_enable();
+#endif
ops->cursor_flash = 1;
if (mode & CM_SOFTBACK) {
mode &= ~CM_SOFTBACK;
@@ -1069,6 +1076,9 @@ static void fbcon_cursor(struct vc_data
ops->cursor(vc, info, p, mode, get_color(vc, info, c, 1),
get_color(vc, info, c, 0));
vbl_cursor_cnt = CURSOR_DRAW_DELAY;
+#ifdef CONFIG_PREEMPT_REALTIME
+ local_irq_restore(flags);
+#endif
}
static int scrollback_phys_max = 0;
next prev parent reply other threads:[~2004-11-04 12:06 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-03 17:08 [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm2-V0.7.7 Sid Boyce
2004-11-03 18:51 ` K.R. Foley
2004-11-04 0:00 ` Sid Boyce
2004-11-04 1:40 ` K.R. Foley
2004-11-04 9:59 ` Michael J. Cohen
2004-11-04 10:06 ` Ingo Molnar
2004-11-04 10:23 ` Michael J. Cohen
2004-11-04 11:17 ` Ingo Molnar
2004-11-04 11:17 ` Michael J. Cohen
2004-11-04 11:45 ` Ingo Molnar [this message]
2004-11-04 12:59 ` Michael J. Cohen
2004-11-04 13:34 ` Michael J. Cohen
2004-11-04 14:05 ` Ingo Molnar
2004-11-04 14:13 ` Michael J. Cohen
2004-11-04 14:23 ` Ingo Molnar
2004-11-04 18:31 ` Michael J. Cohen
2004-11-04 19:38 ` Ingo Molnar
2004-11-05 12:16 ` Sid Boyce
2004-11-05 19:53 ` Michael J. Cohen
2004-11-06 7:36 ` Ingo Molnar
2004-11-04 12:53 ` Sid Boyce
-- strict thread matches above, loose matches on Subject: below --
2004-11-03 20:40 [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm2-V0.7.1 Mark_H_Johnson
2004-11-04 0:17 ` [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm2-V0.7.7 Rui Nuno Capela
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20041104114545.GA3722@elte.hu \
--to=mingo@elte.hu \
--cc=kr@cybsft.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mjc@unre.st \
--cc=sboyce@blueyonder.co.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox