lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 23 Apr 2010 09:08:57 -0700 From: Jesse Barnes <jbarnes@...tuousgeek.org> To: Zdenek Kabelac <zdenek.kabelac@...il.com> Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, eric@...olt.net, Toralf Förster <toralf.foerster@....de> Subject: Re: i915_do_wait_request BUG: unable to handle kernel NULL pointer dereference at (null) On Fri, 23 Apr 2010 12:24:25 +0200 Zdenek Kabelac <zdenek.kabelac@...il.com> wrote: > Hi > > Just tried to boot current vanilla upstream kernel - and got pretty ugly oops. > Here is serial console catch after X-startup: > > > BUG: unable to handle kernel NULL pointer dereference at (null) > IP: [<ffffffffa035de81>] i915_do_wait_request+0x101/0x4f0 [i915] > PGD 139649067 PUD 133b5a067 PMD 0 > Oops: 0000 [#1] PREEMPT SMP > last sysfs file: /sys/devices/virtual/backlight/acpi_video0/actual_brightness > CPU 0 > Modules linked in: xt_tcpudp bridge stp llc autofs4 sunrpc ipv6 > ipt_REJECT xt_physdev xt_state ] > Here's the fix I'm testing now. -- Jesse Barnes, Intel Open Source Technology Center diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 7f52cc1..ef3d91d 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1793,7 +1793,7 @@ i915_get_gem_seqno(struct drm_device *dev) { drm_i915_private_t *dev_priv = dev->dev_private; - if (IS_I965G(dev)) + if (HAS_PIPE_CONTROL(dev)) return ((volatile u32 *)(dev_priv->seqno_page))[0]; else return READ_HWSP(dev_priv, I915_GEM_HWS_INDEX); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists