<!DOCTYPE html><html><head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> Am 25.11.24 um 16:29 schrieb Matthew Brost: <blockquote type="cite" cite="mid:Z0SX8WJCPADGLVE5@lstrano-desk.jf.intel.com"> <pre class="moz-quote-pre" wrap="">On Fri, Nov 15, 2024 at 10:27:59AM -0800, Matthew Brost wrote: </pre> <blockquote type="cite">[SNIP] <pre class="moz-quote-pre" wrap="">We use this interface to read a BO marked with a dumpable flag during a GPU hang in our error capture code. This is an internal KMD feature, not directly exposed to user space. Would adding this helper be acceptable for this use case? I can add kernel indicating the current restrictions of the helper (do not directly expose to user space) too if that would help. </pre> </blockquote> <pre class="moz-quote-pre" wrap=""> Christian - ping on above.</pre> </blockquote> Sorry, I will try to give those mailing list tasks a bit more time in before the xmas holidays. That is an acceptable use case, but the problem is that this helper won't work for that. See during a GPU hang you can't lock BOs, so how do you want to look into their content with the peek helper? The only thing you could potentially do is to trylock the BO and then dump, but that would most likely be a bit unreliable. Regards, Christian. <blockquote type="cite" cite="mid:Z0SX8WJCPADGLVE5@lstrano-desk.jf.intel.com"> <blockquote type="cite"> <pre class="moz-quote-pre" wrap="">Matt </pre> </blockquote> </blockquote> </body> </html>