<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [CI][SHARDS]igt@gem_exec_reuse@contexts - incomplete - Out of memory" href="https://bugs.freedesktop.org/show_bug.cgi?id=111875#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [CI][SHARDS]igt@gem_exec_reuse@contexts - incomplete - Out of memory" href="https://bugs.freedesktop.org/show_bug.cgi?id=111875">bug 111875</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>ickle@broadwell:~/linux$ git bisect bad c5665868183fec689dbab9fb8505188b2c4f0757 is the first bad commit commit c5665868183fec689dbab9fb8505188b2c4f0757 Author: Catalin Marinas <<a href="mailto:catalin.marinas@arm.com">catalin.marinas@arm.com</a>> Date: Mon Sep 23 15:34:05 2019 -0700 mm: kmemleak: use the memory pool for early allocations Currently kmemleak uses a static early_log buffer to trace all memory allocation/freeing before the slab allocator is initialised. Such early log is replayed during kmemleak_init() to properly initialise the kmemleak metadata for objects allocated up that point. With a memory pool that does not rely on the slab allocator, it is possible to skip this early log entirely. In order to remove the early logging, consider kmemleak_enabled == 1 by default while the kmem_cache availability is checked directly on the object_cache and scan_area_cache variables. The RCU callback is only invoked after object_cache has been initialised as we wouldn't have any concurrent list traversal before this. In order to reduce the number of callbacks before kmemleak is fully initialised, move the kmemleak_init() call to mm_init(). [<a href="mailto:akpm@linux-foundation.org">akpm@linux-foundation.org</a>: coding-style fixes] [<a href="mailto:akpm@linux-foundation.org">akpm@linux-foundation.org</a>: remove WARN_ON(), per Catalin] Link: <a href="http://lkml.kernel.org/r/20190812160642.52134-4-catalin.marinas@arm.com">http://lkml.kernel.org/r/20190812160642.52134-4-catalin.marinas@arm.com</a> Signed-off-by: Catalin Marinas <<a href="mailto:catalin.marinas@arm.com">catalin.marinas@arm.com</a>> Cc: Matthew Wilcox <<a href="mailto:willy@infradead.org">willy@infradead.org</a>> Cc: Michal Hocko <<a href="mailto:mhocko@kernel.org">mhocko@kernel.org</a>> Cc: Qian Cai <<a href="mailto:cai@lca.pw">cai@lca.pw</a>> Signed-off-by: Andrew Morton <<a href="mailto:akpm@linux-foundation.org">akpm@linux-foundation.org</a>> Signed-off-by: Linus Torvalds <<a href="mailto:torvalds@linux-foundation.org">torvalds@linux-foundation.org</a>></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>