From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 107432] Periodic complete system lockup with Vega M and Kernel 4.18-rc6+ Date: Fri, 03 Aug 2018 17:32:44 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0898992808==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id 3F8926E7A2 for ; Fri, 3 Aug 2018 17:32:44 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0898992808== Content-Type: multipart/alternative; boundary="15333175640.E2E666.17784" Content-Transfer-Encoding: 7bit --15333175640.E2E666.17784 Date: Fri, 3 Aug 2018 17:32:44 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D107432 --- Comment #7 from Robert Strube --- (In reply to Michel D=C3=A4nzer from comment #6) > Well, https://bugs.freedesktop.org/attachment.cgi?id=3D140903 definitely = shows > an amdgpu issue exacerbating the memory pressure situation =E2=80=94 it t= ries to > allocate 4M of physically contiguous memory. My patch fixes that. Can you > confirm that the patch at least doesn't cause any additional issues of its > own? Hey! Good point. I ran the custom kernel for a couple days without issue. Would you like me= to do some more testing? I went back to vanilla 4.18-rc7 - but I'd be happy to make my daily driver 4.18-rc7 with the patch. My understanding is that kvmalloc is a slightly safer way of allocating mem= ory as compared to kmalloc - in that it doesn't necessarily need the memory to = be contiguous. The downside is that it's not quite a performant. Is this correct? --=20 You are receiving this mail because: You are the assignee for the bug.= --15333175640.E2E666.17784 Date: Fri, 3 Aug 2018 17:32:44 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Commen= t # 7 on bug 10743= 2 from Robert Strube 
(In reply to Michel D=C3=A4nzer from comment #6)
> Well, https://bugs.freedesktop.org/attachment.cgi?id=3D=
140903 definitely shows
> an amdgpu issue exacerbating the memory pressure situation =E2=80=94 i=
t tries to
> allocate 4M of physically contiguous memory. My patch fixes that. Can =
you
> confirm that the patch at least doesn't cause any additional issues of=
 its
> own?

Hey! Good point.

I ran the custom kernel for a couple days without issue.  Would you like me=
 to
do some more testing? I went back to vanilla 4.18-rc7 - but I'd be happy to
make my daily driver 4.18-rc7 with the patch.

My understanding is that kvmalloc is a slightly safer way of allocating mem=
ory
as compared to kmalloc - in that it doesn't necessarily need the memory to =
be
contiguous.  The downside is that it's not quite a performant.  Is this
correct?

You are receiving this mail because:
  • You are the assignee for the bug.
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