kernel/linux.git/lib/Kconfig.debug, branch v6.2.6

Merge tag 'mm-hotfixes-stable-2023-02-02-19-24-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-02-03T18:01:57+00:00

Pull misc fixes from Andrew Morton: "25 hotfixes, mainly for MM. 13 are cc:stable" * tag 'mm-hotfixes-stable-2023-02-02-19-24-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (26 commits) mm: memcg: fix NULL pointer in mem_cgroup_track_foreign_dirty_slowpath() Kconfig.debug: fix the help description in SCHED_DEBUG mm/swapfile: add cond_resched() in get_swap_pages() mm: use stack_depot_early_init for kmemleak Squashfs: fix handling and sanity checking of xattr_ids count sh: define RUNTIME_DISCARD_EXIT highmem: round down the address passed to kunmap_flush_on_unmap() migrate: hugetlb: check for hugetlb shared PMD in node migration mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps mm/MADV_COLLAPSE: catch !none !huge !bad pmd lookups Revert "mm: kmemleak: alloc gray object for reserved region with direct map" freevxfs: Kconfig: fix spelling maple_tree: should get pivots boundary by type .mailmap: update e-mail address for Eugen Hristev mm, mremap: fix mremap() expanding for vma's with vm_ops->close() squashfs: harden sanity check in squashfs_read_xattr_id_table ia64: fix build error due to switch case label appearing next to declaration mm: multi-gen LRU: fix crash during cgroup migration Revert "mm: add nodes= arg to memory.reclaim" zsmalloc: fix a race with deferred_handles storing ...

Kconfig.debug: fix the help description in SCHED_DEBUG

2023-02-01T00:44:10+00:00

The correct file path for SCHED_DEBUG is /sys/kernel/debug/sched. Link: https://lkml.kernel.org/r/202301291013573466558@zte.com.cn Signed-off-by: ye xingchen Cc: Dan Williams Cc: Geert Uytterhoeven Cc: Josh Poimboeuf Cc: Kees Cook Cc: Miguel Ojeda Cc: Nathan Chancellor Cc: Nick Desaulniers Cc: Peter Zijlstra Cc: Randy Dunlap Cc: Rasmus Villemoes Cc: Vlastimil Babka Cc: Zhaoyang Huang Signed-off-by: Andrew Morton

mm: use stack_depot_early_init for kmemleak

2023-02-01T00:44:10+00:00

Mirsad report the below error which is caused by stack_depot_init() failure in kvcalloc. Solve this by having stackdepot use stack_depot_early_init(). On 1/4/23 17:08, Mirsad Goran Todorovac wrote: I hate to bring bad news again, but there seems to be a problem with the output of /sys/kernel/debug/kmemleak: [root@pc-mtodorov ~]# cat /sys/kernel/debug/kmemleak unreferenced object 0xffff951c118568b0 (size 16): comm "kworker/u12:2", pid 56, jiffies 4294893952 (age 4356.548s) hex dump (first 16 bytes): 6d 65 6d 73 74 69 63 6b 30 00 00 00 00 00 00 00 memstick0....... backtrace: [root@pc-mtodorov ~]# Apparently, backtrace of called functions on the stack is no longer printed with the list of memory leaks. This appeared on Lenovo desktop 10TX000VCR, with AlmaLinux 8.7 and BIOS version M22KT49A (11/10/2022) and 6.2-rc1 and 6.2-rc2 builds. This worked on 6.1 with the same CONFIG_KMEMLEAK=y and MGLRU enabled on a vanilla mainstream kernel from Mr. Torvalds' tree. I don't know if this is deliberate feature for some reason or a bug. Please find attached the config, lshw and kmemleak output. [vbabka@suse.cz: remove stack_depot_init() call] Link: https://lore.kernel.org/all/5272a819-ef74-65ff-be61-4d2d567337de@alu.unizg.hr/ Link: https://lkml.kernel.org/r/1674091345-14799-2-git-send-email-zhaoyang.huang@unisoc.com Fixes: 56a61617dd22 ("mm: use stack_depot for recording kmemleak's backtrace") Reported-by: Mirsad Todorovac Suggested-by: Vlastimil Babka Signed-off-by: Zhaoyang Huang Acked-by: Mike Rapoport (IBM) Acked-by: Catalin Marinas Acked-by: Vlastimil Babka Tested-by: Borislav Petkov (AMD) Cc: ke.wang Cc: Nathan Chancellor Cc: Peter Zijlstra (Intel) Signed-off-by: Andrew Morton

Merge tag 'hardening-v6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2023-01-28T00:09:12+00:00

Pull hardening fixes from Kees Cook: - Split slow memcpy tests into MEMCPY_SLOW_KUNIT_TEST - Reorganize gcc-plugin includes for GCC 13 - Silence bcache memcpy run-time false positive warnings * tag 'hardening-v6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: bcache: Silence memcpy() run-time false positive warnings gcc-plugins: Reorganize gimple includes for GCC 13 kunit: memcpy: Split slow memcpy tests into MEMCPY_SLOW_KUNIT_TEST

kunit: memcpy: Split slow memcpy tests into MEMCPY_SLOW_KUNIT_TEST

2023-01-25T20:24:40+00:00

Since the long memcpy tests may stall a system for tens of seconds in virtualized architecture environments, split those tests off under CONFIG_MEMCPY_SLOW_KUNIT_TEST so they can be separately disabled. Reported-by: Guenter Roeck Link: https://lore.kernel.org/lkml/20221226195206.GA2626419@roeck-us.net Reviewed-by: Nick Desaulniers Reviewed-and-tested-by: Guenter Roeck Reviewed-by: David Gow Cc: Andrew Morton Cc: Nathan Chancellor Cc: linux-hardening@vger.kernel.org Signed-off-by: Kees Cook

lib: Kconfig: fix spellos

2023-01-25T00:21:26+00:00

Fix spelling in lib/ Kconfig files. (reported by codespell) Link: https://lkml.kernel.org/r/20230124181655.16269-1-rdunlap@infradead.org Cc: Andrew Morton Cc: Marco Elver Cc: Dmitry Vyukov Cc: kasan-dev@googlegroups.com Reviewed-by: Marco Elver Signed-off-by: Randy Dunlap Signed-off-by: Steven Rostedt (Google)

Merge tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2022-12-19T18:33:32+00:00

Pull Kbuild updates from Masahiro Yamada: - Support zstd-compressed debug info - Allow W=1 builds to detect objects shared among multiple modules - Add srcrpm-pkg target to generate a source RPM package - Make the -s option detection work for future GNU Make versions - Add -Werror to KBUILD_CPPFLAGS when CONFIG_WERROR=y - Allow W=1 builds to detect -Wundef warnings in any preprocessed files - Raise the minimum supported version of binutils to 2.25 - Use $(intcmp ...) to compare integers if GNU Make >= 4.4 is used - Use $(file ...) to read a file if GNU Make >= 4.2 is used - Print error if GNU Make older than 3.82 is used - Allow modpost to detect section mismatches with Clang LTO - Include vmlinuz.efi into kernel tarballs for arm64 CONFIG_EFI_ZBOOT=y * tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (29 commits) buildtar: fix tarballs with EFI_ZBOOT enabled modpost: Include '.text.*' in TEXT_SECTIONS padata: Mark padata_work_init() as __ref kbuild: ensure Make >= 3.82 is used kbuild: refactor the prerequisites of the modpost rule kbuild: change module.order to list *.o instead of *.ko kbuild: use .NOTINTERMEDIATE for future GNU Make versions kconfig: refactor Makefile to reduce process forks kbuild: add read-file macro kbuild: do not sort after reading modules.order kbuild: add test-{ge,gt,le,lt} macros Documentation: raise minimum supported version of binutils to 2.25 kbuild: add -Wundef to KBUILD_CPPFLAGS for W=1 builds kbuild: move -Werror from KBUILD_CFLAGS to KBUILD_CPPFLAGS kbuild: Port silent mode detection to future gnu make. init/version.c: remove #include firmware_loader: remove #include modpost: Mark uuid_le type to be suitable only for MEI kbuild: add ability to make source rpm buildable using koji kbuild: warn objects shared among multiple modules ...

Merge tag 'mm-nonmm-stable-2022-12-17-20-32' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2022-12-19T13:03:44+00:00

Pull fault-injection updates from Andrew Morton: "Some fault-injection improvements from Wei Yongjun which enable stacktrace filtering on x86_64" * tag 'mm-nonmm-stable-2022-12-17-20-32' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: fault-injection: make stacktrace filter works as expected fault-injection: make some stack filter attrs more readable fault-injection: skip stacktrace filtering by default fault-injection: allow stacktrace filter for x86-64

fault-injection: allow stacktrace filter for x86-64

2022-12-16T00:40:43+00:00

This patchset allow fault injection to run on x86_64 and makes stacktrace filter work as expected. With this, we can test a device driver module with fault injection more easily. This patch (of 4): FAULT_INJECTION_STACKTRACE_FILTER option was apparently disallowed on x86_64 because of problems with the stack unwinder: commit 6d690dcac92a84f98fd774862628ff871b713660 Author: Akinobu Mita Date: Sat May 12 10:36:53 2007 -0700 fault injection: disable stacktrace filter for x86-64 However, there is no problems whatsoever with this today. Let's allow it again. Link: https://lkml.kernel.org/r/20220817080332.1052710-1-weiyongjun1@huawei.com Link: https://lkml.kernel.org/r/20220817080332.1052710-2-weiyongjun1@huawei.com Signed-off-by: Wei Yongjun Cc: Akinobu Mita Cc: Nathan Chancellor Cc: Peter Zijlstra Cc: Kees Cook Cc: Nick Desaulniers Cc: Josh Poimboeuf Cc: Dan Williams Cc: Miguel Ojeda Cc: Isabella Basso Cc: Vlastimil Babka Cc: Rasmus Villemoes Signed-off-by: Andrew Morton

mm: use stack_depot for recording kmemleak's backtrace

2022-12-16T00:37:49+00:00

Using stack_depot to record kmemleak's backtrace which has been implemented on slub for reducing redundant information. [akpm@linux-foundation.org: fix build - remove now-unused __save_stack_trace()] [zhaoyang.huang@unisoc.com: v3] Link: https://lkml.kernel.org/r/1667101354-4669-1-git-send-email-zhaoyang.huang@unisoc.com [akpm@linux-foundation.org: fix v3 layout oddities] [akpm@linux-foundation.org: coding-style cleanups] Link: https://lkml.kernel.org/r/1666864224-27541-1-git-send-email-zhaoyang.huang@unisoc.com Signed-off-by: Zhaoyang Huang Acked-by: Catalin Marinas Cc: ke.wang Cc: Matthew Wilcox (Oracle) Cc: Vlastimil Babka Cc: Zhaoyang Huang Signed-off-by: Andrew Morton