Debian Bug report logs - #1041591
iris: Retry DRM_IOCTL_I915_GEM_EXECBUFFER2 on ENOMEM

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Package: libgl1-mesa-dri; Maintainer for libgl1-mesa-dri is Debian X Strike Force <[email protected]>; Source for libgl1-mesa-dri is src:mesa (PTS, buildd, popcon).

Reported by: SuperCat <[email protected]>

Date: Fri, 21 Jul 2023 06:21:02 UTC

Severity: normal

Tags: patch

Found in version mesa/22.3.6-1+deb12u1

Fixed in version mesa/23.1.3-1

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Subject: Bug#1041591: iris: Retry DRM_IOCTL_I915_GEM_EXECBUFFER2 on ENOMEM
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From: SuperCat <[email protected]>
Date: Thu, 3 Aug 2023 22:10:07 +0900
Message-ID: <CAO1WHCF7AWFN6=AZzD1mVFiBGaoYYB3EZeoFvrj4S+73A+gXHA@mail.gmail.com>
To: [email protected]
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[Message part 1 (text/plain, inline)]
I have backported this patch and applied it to my system. Tested for more
than 2 weeks and no crashes anymore.

diff --git a/src/gallium/drivers/iris/iris_batch.c
b/src/gallium/drivers/iris/iris_batch.c
index c7a08a0e1f5f0..deab85ce4aaf3 100644
--- a/src/gallium/drivers/iris/iris_batch.c
+++ b/src/gallium/drivers/iris/iris_batch.c
@@ -981,9 +981,14 @@ submit_batch(struct iris_batch *batch)
    }

    int ret = 0;
-   if (!batch->screen->devinfo.no_hw &&
-       intel_ioctl(batch->screen->fd, DRM_IOCTL_I915_GEM_EXECBUFFER2,
&execbuf))
-      ret = -errno;
+   if (!batch->screen->devinfo.no_hw) {
+      do {
+         ret = intel_ioctl(batch->screen->fd,
DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf);
+      } while (ret && errno == ENOMEM);
+
+      if (ret)
+ ret = -errno;
+   }

    simple_mtx_unlock(bo_deps_lock);

[Message part 2 (text/html, inline)]

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