bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem - linux-dev - Linux kernel development work

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author	Liu Shixin <liushixin2@huawei.com>	2022-08-19 17:40:05 +0800
committer	Andrew Morton <akpm@linux-foundation.org>	2022-08-28 14:02:45 -0700
commit	dd0ff4d12dd284c334f7e9b07f8f335af856ac78 (patch)
tree	c12441a2276f92c26a42d9d2055111245903a8f2 /Documentation/devicetree/bindings/soc/ssh:/git@git.zx2c4.com/git:
parent	ocfs2: fix freeing uninitialized resource on ocfs2_dlm_shutdown (diff)

bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem

The vmemmap pages is marked by kmemleak when allocated from memblock. Remove it from kmemleak when freeing the page. Otherwise, when we reuse the page, kmemleak may report such an error and then stop working. kmemleak: Cannot insert 0xffff98fb6eab3d40 into the object search tree (overlaps existing) kmemleak: Kernel memory leak detector disabled kmemleak: Object 0xffff98fb6be00000 (size 335544320): kmemleak: comm "swapper", pid 0, jiffies 4294892296 kmemleak: min_count = 0 kmemleak: count = 0 kmemleak: flags = 0x1 kmemleak: checksum = 0 kmemleak: backtrace: Link: https://lkml.kernel.org/r/20220819094005.2928241-1-liushixin2@huawei.com Fixes: f41f2ed43ca5 (mm: hugetlb: free the vmemmap pages associated with each HugeTLB page) Signed-off-by: Liu Shixin <liushixin2@huawei.com> Reviewed-by: Muchun Song <songmuchun@bytedance.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Diffstat (limited to 'Documentation/devicetree/bindings/soc/ssh:/git@git.zx2c4.com/git:')

0 files changed, 0 insertions, 0 deletions

/* Copyright (C) 1991, 1992, 1995, 1996, 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <stdio.h> #include <signal.h> #ifndef HAVE_GNU_LD #define _sys_siglist sys_siglist #endif /* Defined in sys_siglist.c. */ extern const char *const _sys_siglist[]; /* Print out on stderr a line consisting of the test in S, a colon, a space, a message describing the meaning of the signal number SIG and a newline. If S is NULL or "", the colon and space are omitted. */ void psignal (int sig, const char *s) { const char *colon, *desc; if (s == NULL || s == '\0') s = colon = ""; else colon = ": "; if (sig >= 0 && sig < NSIG && (desc = _sys_siglist[sig]) != NULL) (void) fprintf (stderr, "%s%s%s\n", s, colon, _(desc)); else (void) fprintf (stderr, _("%s%sUnknown signal %d\n"), s, colon, sig); }


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