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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 170C0C433F5 for ; Fri, 17 Sep 2021 07:31:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EDB636113A for ; Fri, 17 Sep 2021 07:31:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240622AbhIQHcl (ORCPT ); Fri, 17 Sep 2021 03:32:41 -0400 Received: from mail-il1-f198.google.com ([209.85.166.198]:35667 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230393AbhIQHck (ORCPT ); Fri, 17 Sep 2021 03:32:40 -0400 Received: by mail-il1-f198.google.com with SMTP id f4-20020a056e0204c400b0022dbd3f8b18so20309757ils.2 for ; Fri, 17 Sep 2021 00:31:19 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=/BCpZC2CEqwllBmiEKngtnImQFDYFKH06oLpAqVHbAc=; b=VUqvgu9zxtr2s+jds2L9S9ylh68QYTxhl1vZQpXpQ0jFwtufpz5OnirB9ifu4lodlz Y9pnJiIZwEpCJQl4GBGBW+0VOBo1QzIEutLII4wPDDU4A0HLU6wh9foGhU1cVCA3YHtL Czz8p5LypM24UNPGGiI7ADwINNTkxjsshP+kh9M4LApLCmnEUOfVuUbp1udAtpelkgmH deRNoXIDplEa3XUdT5jTEyRGZO7rpPuHiNi5wEcjlXc8XNCfYgyPj64quhBP5Uqx+4cX RLWwK/bNorFoEoixwbpnHS1pj68dluMn6SKSyHQny7wr3yWZmjtMBmf/Cg69/YJFDtO1 L70g== X-Gm-Message-State: AOAM530mBvy/PKVAGpbqYOQVysZ7ey1MnLaevSAzKh0tlI5m3wbpNpHZ IaaRUuo9rhOLSLXm8+u24solPzdstg4ReHdPn/x5VUo5ay5R X-Google-Smtp-Source: ABdhPJxL2s+a4rCD83BCkK1TE5yHvrFTEO9uDY/FepB8U20cSUSnzaZbnhR3DzIlaGD8atv+YqQDJubc8JtTC9+7ZtOesrR6V1TV MIME-Version: 1.0 X-Received: by 2002:a02:5442:: with SMTP id t63mr7525825jaa.7.1631863878696; Fri, 17 Sep 2021 00:31:18 -0700 (PDT) Date: Fri, 17 Sep 2021 00:31:18 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000cfc3ae05cc2bea91@google.com> Subject: [syzbot] BUG: soft lockup in kjournald2 (2) From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: ac08b1c68d1b Merge tag 'pci-v5.15-changes' of git://git.ke.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17d44ab3300000 kernel config: https://syzkaller.appspot.com/x/.config?x=b196c22f1ee14fd4 dashboard link: https://syzkaller.appspot.com/bug?extid=50f834e0ee66561f76fe compiler: aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+50f834e0ee66561f76fe@syzkaller.appspotmail.com watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [jbd2/vda-8:3107] Modules linked in: irq event stamp: 373534 hardirqs last enabled at (373533): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline] hardirqs last enabled at (373533): [] exit_to_kernel_mode+0x38/0x230 arch/arm64/kernel/entry-common.c:91 hardirqs last disabled at (373534): [] enter_el1_irq_or_nmi+0x10/0x20 arch/arm64/kernel/entry-common.c:227 softirqs last enabled at (373478): [] _stext+0x964/0xff8 softirqs last disabled at (373447): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (373447): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (373447): [] __irq_exit_rcu+0x208/0x4f0 kernel/softirq.c:636 CPU: 1 PID: 3107 Comm: jbd2/vda-8 Not tainted 5.14.0-syzkaller-10318-gac08b1c68d1b #0 Hardware name: linux,dummy-virt (DT) pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : clear_page+0x14/0x28 arch/arm64/lib/clear_page.S:23 lr : clear_highpage include/linux/highmem.h:181 [inline] lr : kernel_init_free_pages.part.0+0x6c/0x17c mm/page_alloc.c:1286 sp : ffff80001ef77070 x29: ffff80001ef77070 x28: 0000000000000000 x27: 0000000000000000 x26: ffff00001026e378 x25: ffff60000204dc6f x24: 00000000000014b8 x23: ffff00001026cec0 x22: fffffc0000173f40 x21: ffff8000157be698 x20: dfff800000000000 x19: fffffc0000173f00 x18: ffff00006aa76c08 x17: 0000000000000000 x16: 0000000000000000 x15: ffff00006aa76c3c x14: 1ffff00003deedd8 x13: 0000000000000013 x12: ffff7f800002e7e7 x11: 1fffff800002e7e6 x10: ffff7f800002e7e6 x9 : 0000000000000000 x8 : ffff600000b9fa00 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 1ffff00003067da0 x3 : 1fffe0000204d9d9 x2 : 0000000000000004 x1 : 0000000000000040 x0 : ffff000005cfc8c0 Call trace: clear_page+0x14/0x28 arch/arm64/lib/clear_page.S:21 kernel_init_free_pages mm/page_alloc.c:1283 [inline] post_alloc_hook+0x1ac/0x25c mm/page_alloc.c:2426 prep_new_page mm/page_alloc.c:2436 [inline] get_page_from_freelist+0x184c/0x2320 mm/page_alloc.c:4168 __alloc_pages+0x1a8/0x21d0 mm/page_alloc.c:5390 alloc_pages+0x23c/0x3b0 mm/mempolicy.c:2291 __page_cache_alloc mm/filemap.c:1022 [inline] pagecache_get_page+0x4ac/0x930 mm/filemap.c:1940 find_or_create_page include/linux/pagemap.h:420 [inline] grow_dev_page fs/buffer.c:949 [inline] grow_buffers fs/buffer.c:1014 [inline] __getblk_slow+0x178/0x6bc fs/buffer.c:1041 __getblk_gfp+0x7c/0xa0 fs/buffer.c:1334 __getblk include/linux/buffer_head.h:382 [inline] jbd2_journal_get_descriptor_buffer+0xf0/0x3f0 fs/jbd2/journal.c:1014 journal_submit_commit_record.part.0+0x88/0x7fc fs/jbd2/commit.c:131 journal_submit_commit_record fs/jbd2/commit.c:128 [inline] jbd2_journal_commit_transaction+0x2ad4/0x4270 fs/jbd2/commit.c:925 kjournald2+0x190/0x734 fs/jbd2/journal.c:213 kthread+0x334/0x3dc kernel/kthread.c:319 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756 --- This report is generated by a bot. 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