The patch titled Subject: mm, hugetlb: add thread name and pid to SHM_HUGETLB mlock rlimit warning has been added to the -mm tree. Its filename is mm-hugetlb-add-thread-name-and-pid-to-shm_hugetlb-mlock-rlimit-warning.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: David Rientjes <rientjes@xxxxxxxxxx> Subject: mm, hugetlb: add thread name and pid to SHM_HUGETLB mlock rlimit warning Add the thread name and pid of the application that is allocating shm segments with MAP_HUGETLB without being a part of /proc/sys/vm/hugetlb_shm_group or having CAP_IPC_LOCK. This identifies the application so it may be fixed by avoiding using the deprecated exception (see Documentation/feature-removal-schedule.txt). Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx> Cc: Dave Jones <davej@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/hugetlbfs/inode.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff -puN fs/hugetlbfs/inode.c~mm-hugetlb-add-thread-name-and-pid-to-shm_hugetlb-mlock-rlimit-warning fs/hugetlbfs/inode.c --- a/fs/hugetlbfs/inode.c~mm-hugetlb-add-thread-name-and-pid-to-shm_hugetlb-mlock-rlimit-warning +++ a/fs/hugetlbfs/inode.c @@ -944,7 +944,11 @@ struct file *hugetlb_file_setup(const ch if (creat_flags == HUGETLB_SHMFS_INODE && !can_do_hugetlb_shm()) { *user = current_user(); if (user_shm_lock(size, *user)) { - printk_once(KERN_WARNING "Using mlock ulimits for SHM_HUGETLB is deprecated\n"); + task_lock(current); + printk_once(KERN_WARNING + "%s (%d): Using mlock ulimits for SHM_HUGETLB is deprecated\n", + current->comm, current->pid); + task_unlock(current); } else { *user = NULL; return ERR_PTR(-EPERM); _ Subject: Subject: mm, hugetlb: add thread name and pid to SHM_HUGETLB mlock rlimit warning Patches currently in -mm which might be from rientjes@xxxxxxxxxx are origin.patch linux-next.patch slab-introduce-kmalloc_array.patch mm-oom-avoid-looping-when-chosen-thread-detaches-its-mm.patch mm-oom-fold-oom_kill_task-into-oom_kill_process.patch mm-oom-do-not-emit-oom-killer-warning-if-chosen-thread-is-already-exiting.patch mm-oom-introduce-independent-oom-killer-ratelimit-state.patch mm-vmscanc-cleanup-with-s-reclaim_mode-isolate_mode.patch pagemap-avoid-splitting-thp-when-reading-proc-pid-pagemap.patch thp-optimize-away-unnecessary-page-table-locking.patch thp-optimize-away-unnecessary-page-table-locking-fix.patch pagemap-export-kpf_thp.patch pagemap-document-kpf_thp-and-make-page-types-aware-of-it.patch pagemap-introduce-data-structure-for-pagemap-entry.patch rmap-anon_vma_prepare-reduce-code-duplication-by-calling-anon_vma_chain_link.patch rmap-remove-__anon_vma_link.patch mm-oom-force-oom-kill-on-sysrqf.patch mm-memcg-pass-charge-order-to-oom-killer.patch cpuset-mm-reduce-large-amounts-of-memory-barrier-related-damage-v3.patch mm-counters-remove-task-argument-to-sync_mm_rss-and-__sync_task_rss_stat.patch mm-counters-fold-__sync_task_rss_stat-into-sync_mm_rss.patch mm-hugetlb-add-thread-name-and-pid-to-shm_hugetlb-mlock-rlimit-warning.patch memcg-remove-unnecessary-thp-check-in-page-stat-accounting.patch signal-give-send_sig_forced-more-power-to-beat-signal_unkillable.patch signal-cosmetic-s-from_ancestor_ns-force-in-prepare_signal-paths.patch signal-oom_kill_task-use-send_sig_forced-instead-of-force_sig.patch signal-zap_pid_ns_processes-s-send_sig_noinfo-send_sig_forced.patch usermodehelper-introduce-umh_completesub_info.patch usermodehelper-implement-umh_killable.patch usermodehelper-kill-umh_wait-renumber-umh_-constants.patch usermodehelper-____call_usermodehelper-doesnt-need-do_exit.patch kmod-introduce-call_modprobe-helper.patch kmod-make-__request_module-killable.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html