<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"></style> </head> <body dir="ltr"> <div id="divtagdefaultwrapper" style="font-size: 12pt; color: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif, "EmojiFont", "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;" dir="ltr"> <p style="margin-top:0;margin-bottom:0">Acked-by: Alex Deucher <alexander.deucher@amd.com><br> </p> <br> <div style="color: rgb(0, 0, 0);"> <hr style="display:inline-block;width:98%" tabindex="-1"> <div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Christian König <ckoenig.leichtzumerken@gmail.com><br> <b>Sent:</b> Thursday, October 25, 2018 10:38 AM<br> <b>To:</b> amd-gfx@lists.freedesktop.org<br> <b>Subject:</b> [PATCH] drm/amdgpu: fix VM leaf walking</font> <div> </div> </div> <div class="BodyFragment"><font size="2"><span style="font-size:11pt;"> <div class="PlainText">Make sure we don't try to go down further after the leave walk already<br> ended. This fixes a crash with a new VM test.<br> <br> Signed-off-by: Christian König <christian.koenig@amd.com><br> ---<br> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 3 ++-<br> 1 file changed, 2 insertions(+), 1 deletion(-)<br> <br> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c<br> index db0cbf8d219d..352b30409060 100644<br> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c<br> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c<br> @@ -542,7 +542,8 @@ static void amdgpu_vm_pt_next_leaf(struct amdgpu_device *adev,<br> struct amdgpu_vm_pt_cursor *cursor)<br> {<br> amdgpu_vm_pt_next(adev, cursor);<br> - while (amdgpu_vm_pt_descendant(adev, cursor));<br> + if (cursor->pfn != ~0ll)<br> + while (amdgpu_vm_pt_descendant(adev, cursor));<br> }<br> <br> /**<br> -- <br> 2.17.1<br> <br> _______________________________________________<br> amd-gfx mailing list<br> amd-gfx@lists.freedesktop.org<br> <a href="https://lists.freedesktop.org/mailman/listinfo/amd-gfx" id="LPlnk931098" class="OWAAutoLink" previewremoved="true">https://lists.freedesktop.org/mailman/listinfo/amd-gfx</a><br> </div> </span></font></div> </div> </div> </body> </html>