On 03/06/2018 01:31 PM, Andrew Morton wrote: > > (switched to email. Please respond via emailed reply-to-all, not via the > bugzilla web interface). > > On Tue, 06 Mar 2018 21:11:50 +0000 bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > >> https://bugzilla.kernel.org/show_bug.cgi?id=199037 >> >> Bug ID: 199037 >> Summary: Kernel bug at mm/hugetlb.c:741 >> Product: Memory Management >> Version: 2.5 >> Kernel Version: 4.16.0-rc3 >> Hardware: All >> OS: Linux >> Tree: Mainline >> Status: NEW >> Severity: normal >> Priority: P1 >> Component: Page Allocator >> Assignee: akpm@xxxxxxxxxxxxxxxxxxxx >> Reporter: blurbdust@xxxxxxxxx >> Regression: No >> >> Created attachment 274595 >> --> https://bugzilla.kernel.org/attachment.cgi?id=274595&action=edit >> crash.c >> >> Hello, >> I apologize as this is my first time reporting a bug. When I compile and run >> the attached file it crashes the latest kernel running in QEMU. Call trace >> here: https://pastebin.com/1mMQvH0E >> >> Let me know if you have any questions. >> > > Thanks for the report. > > That's VM_BUG_ON(resv_map->adds_in_progress) in resv_map_release(). > > Do you know if earlier kernel versions are affected? > > It looks quite bisectable. Does the crash happen every time the test > program is run? I'll take a look. There was a previous bug in this area: ff8c0c53: mm/hugetlb.c: don't call region_abort if region_chg fails -- Mike Kravetz -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
