From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C28DFC10F0E for ; Tue, 9 Apr 2019 14:36:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8C5A02084B for ; Tue, 9 Apr 2019 14:36:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726527AbfDIOgB (ORCPT ); Tue, 9 Apr 2019 10:36:01 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:45060 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726372AbfDIOgB (ORCPT ); Tue, 9 Apr 2019 10:36:01 -0400 Received: by mail-io1-f71.google.com with SMTP id r21so14033613iod.12 for ; Tue, 09 Apr 2019 07:36:01 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=mEQkGT7iJSk6abWCfz2qxrwMGOPOmG8LOxSSomFQ5oI=; b=RxvzNvLKE3OIevISMVpvDF3apESX/to0Z2PlFcWDwv9aBuFF2zPm5kjnRBCNbkvAKa D1spWairD8dXAAK1N1uE8tEb6dK09Ud5tWl8o/yevRJQc380tdk6RiiIbvNHL9U10fzl cLf6NAWV0pABgfqAnDKVnaGC91/aqTNx1rYlC7bTAoWe9cMOikXNk11aVHSHf5Iw0vd5 d73HwPjsngGixqcAi4A12fIgmhCm+puDAUeY3ug4/CaDS/xcal3E43uFa3q+CFRPOI4z dTpcTJr8a3Rv73hfUpFvggbT6BnINs1U8soI+v9lufBqxEgUEPlqE9hTLDLnE9QJYVOa PASA== X-Gm-Message-State: APjAAAVqa/1pEvWihut9b7oh6IrUnZ5tj31JPcFHhHbDg+dWYtYaJc8E va3J26MKqKv6V5kue7pZKO4egDO+70BdWvfHHbv4713bxzaP X-Google-Smtp-Source: APXvYqzDhvZKKItNzLO27hTXEzJtA1bL8CFh1mjrn1zPXEcBfvEbQ2R0MTxBiM9CKviHxHbM4SkBLe2LdSW11ZFiSD9O5u/Y6rHH MIME-Version: 1.0 X-Received: by 2002:a5d:899a:: with SMTP id m26mr6128245iol.5.1554820560752; Tue, 09 Apr 2019 07:36:00 -0700 (PDT) Date: Tue, 09 Apr 2019 07:36:00 -0700 In-Reply-To: <00000000000051e9c2057d31a563@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000036a4a9058619dff3@google.com> Subject: Re: kernel BUG at fs/inode.c:LINE! From: syzbot To: akpm@linux-foundation.org, amir73il@gmail.com, dvyukov@google.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, penguin-kernel@I-love.SAKURA.ne.jp, raven@themaw.net, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Bisection is inconclusive: the first bad commit could be any of: cd4f2a66 lib/genalloc.c: fix allocation of aligned buffer from non-aligned chunk df3f18d3 fls: change parameter to unsigned int 9067c8d5 lib/find_bit_benchmark.c: align test_find_next_and_bit with others c2824829 include/linux/printk.h: drop silly "static inline asmlinkage" from dump_stack() 26e88a47 checkpatch: warn on const char foo[] = "bar"; declarations e98eceb8 drivers/dma-buf/udmabuf.c: convert to use vm_fault_t 5b6bf71d build_bug.h: remove most of dummy BUILD_BUG_ON stubs for Sparse f34c9474 fs/epoll: remove max_nests argument from ep_call_nested() 56f6c16e build_bug.h: remove negative-array fallback for BUILD_BUG_ON() cd2f11e6 fs/epoll: simplify ep_send_events_proc() ready-list loop 74a37b90 Documentation/process/coding-style.rst: don't use "extern" with function prototypes ab1909a8 fs/epoll: drop ovflist branch prediction 499aeb57 proc/sysctl: fix return error for proc_doulongvec_minmax() b7fa8017 fs/epoll: robustify ep->mtx held checks d877fd09 fs/proc/base.c: slightly faster /proc/*/limits f2c37862 fs/epoll: reduce the scope of wq lock in epoll_wait() 860705c8 fs-epoll-reduce-the-scope-of-wq-lock-in-epoll_wait-fix c62975fb fs/proc/inode.c: delete unnecessary variable in proc_alloc_inode() 9460069d fs/proc/util.c: include fs/proc/internal.h for name_to_int() ea5f967a fs/epoll: avoid barrier after an epoll_wait(2) timeout b61909d2 fs-epoll-avoid-barrier-after-an-epoll_wait2-timeout-fix c768eca0 fs/proc/base.c: use ns_capable instead of capable for timerslack_ns 81553cde fs/epoll: rename check_events label to send_events b6af7800 fs/buffer.c: add debug print for __getblk_gfp() stall problem 11193e16 mm/page_owner: align with pageblock_nr pages 349afd96 fs/epoll: deal with wait_queue only once 393af37c fs-epoll-deal-with-wait_queue-only-once-fix c20187bf mm/page_owner: align with pageblock_nr_pages 20fbef31 mm: don't expose page to fast gup before it's ready ad4f37b8 init/main.c: make "initcall_level_names[]" const char * 0bcbe611 autofs: improve ioctl sbi checks 69ab6b14 mm: fix race between swapoff and mincore b783d261 autofs-improve-ioctl-sbi-checks-fix de44564f mm, swap: fix race between swapoff and some swap operations 010a80ff mm, swap: fix race between swapoff and some swap operations 9c82e3b8 autofs: fix possible inode leak in autofs_fill_super() 855b7de1 mm/page_alloc.c: remove software prefetching in __free_pages_core() cd4d5fa9 autofs: simplify parse_options() function call e8fed666 memory_hotplug-free-pages-as-higher-order-fix-fix f7aa1250 autofs: change catatonic setting to a bit flag 578f6458 autofs: add strictexpire mount option 71e7f022 memory_hotplug-free-pages-as-higher-order-fix 8286148b mm/page_alloc.c: memory hotplug: free pages as higher order e5d8e894 hfsplus: return file attributes on statx 728804fa include/uapi/linux/msdos_fs.h: use MSDOS_NAME for volume label size e93a0c0d include/linux/memory_hotplug.h: remove duplicate declaration of offline_pages() 3d991a59 ptrace: take into account saved_sigmask in PTRACE_{GET,SET}SIGMASK a7b16608 mm/mmu_notifier: contextual information for event triggering invalidation v2 302092c9 mm-mmu_notifier-use-structure-for-invalidate_range_start-end-calls-v2-checkpatch-fixes cdd7a0aa fork: fix some -Wmissing-prototypes warnings 137d92bd mm/mmu_notifier: use structure for invalidate_range_start/end calls v2 b89cf731 exec: load_script: don't blindly truncate shebang string 42905641 mm-mmu_notifier-use-structure-for-invalidate_range_start-end-callback-fix-fix ad2539c7 exec: increase BINPRM_BUF_SIZE to 256 0db734c6 mm/mmu_notifier: use structure for invalidate_range_start/end callback c09b6daf exec: separate MM_ANONPAGES and RLIMIT_STACK accounting 37ba86cc hwpoison, memory_hotplug: allow hwpoisoned pages to be offlined dc98b124 exec-separate-mm_anonpages-and-rlimit_stack-accounting-fix 28286054 exec-separate-mm_anonpages-and-rlimit_stack-accounting-checkpatch-fixes b08acb20 mm-kmemleak-little-optimization-while-scanning-fix 27faeb70 bfs: extra sanity checking and static inode bitmap 79d0fd91 mm, kmemleak: little optimization while scanning 232619fc lib/ioremap: ensure break-before-make is used for huge p4d mappings 7a489f5d panic: add options to print system info when panic happens 784bedb5 kernel/sysctl: add panic_print into sysctl e5dfd59e lib/ioremap: ensure phys_addr actually corresponds to a physical address 5f8d4992 kernel/kcov.c: mark write_comp_data() as notrace 7bdcb055 x86/pgtable: drop pXd_none() checks from pXd_free_pYd_table() 0aa19fc1 arm64: mmu: drop pXd_present() checks from pXd_free_pYd_table() 7ab8b68a scripts/gdb: fix lx-version string output b2581b70 initramfs: cleanup incomplete rootfs ee095458 ioremap: rework pXd_free_pYd_page() API ce10bcf4 mm/page_alloc.c: calculate first_deferred_pfn directly efae8091 ipc: allow boot time extension of IPCMNI from 32k to 8M ab7db927 ipc-allow-boot-time-extension-of-ipcmni-from-32k-to-8m-checkpatch-fixes f163b82f mm/filemap.c: remove useless check in pagecache_get_page() 399e0a80 mm/page_io.c: fix polled swap page in d04978ca ipc: conserve sequence numbers in extended IPCMNI mode 07365469 Merge branch 'akpm-current/current' bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15e1fc2b200000 start commit: [unknown git tree: linux-next dashboard link: https://syzkaller.appspot.com/bug?extid=5399ed0832693e29f392 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=101032b3400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16534063400000 For information about bisection process see: https://goo.gl/tpsmEJ#bisection