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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 95FD1C43334 for ; Mon, 20 Jun 2022 07:31:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239105AbiFTHbH (ORCPT ); Mon, 20 Jun 2022 03:31:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34320 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236876AbiFTHbG (ORCPT ); Mon, 20 Jun 2022 03:31:06 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D4F74EE29; Mon, 20 Jun 2022 00:31:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=bgxTsD/B5HivoCPJ+6tCPHuAzzjouvx8SURS6XsGWd8=; b=ppW+QiT8+h3+z4R7HRhkGKKurD +PxpPFwubcoCYK3uvh/ImZvFCrcrujrqD0k2OfJOy8R+TN1bFNfCb1QACGRFdrm5GSrUMDBULck0b arkuRQSzT7IJ/UIhjBwba9xQS30Tm2ou7v8i0BRV4ybwMCUPtx2Jir669J9n2Wfr5mXe6czfb6Q0B 2BDPhPN88PqB+oqQS5H88IT/cFgGEI6P7TU5atE+UhcMcbbPPprQdrOHYiroitHjZf16jCGye0VV6 pt3KdgJuYY3HDCGLId1n58e/t2vYFQqvRamwnBF3TzYrq0ATRI3gPkIi0JHfa1akihmFIo0Kcydx0 Z0tCTk+w==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1o3BsC-00GgG2-EP; Mon, 20 Jun 2022 07:31:00 +0000 Date: Mon, 20 Jun 2022 00:31:00 -0700 From: Christoph Hellwig To: syzbot Cc: axboe@kernel.dk, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, rostedt@goodmis.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] BUG: sleeping function called from invalid context in relay_open_buf Message-ID: References: <000000000000d90a8005e1b7d62b@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000d90a8005e1b7d62b@google.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org This looks pretty odd to me. I can't really see anything that would cause an atomic context (spinlock, irq disabling) anywhere near blk_trace_ioctl. On Sat, Jun 18, 2022 at 05:16:23AM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 6012273897fe Add linux-next specific files for 20220615 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=16406cb0080000 > kernel config: https://syzkaller.appspot.com/x/.config?x=b4154677977b1776 > dashboard link: https://syzkaller.appspot.com/bug?extid=4fe838aeddc9710946ca > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > > 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+4fe838aeddc9710946ca@syzkaller.appspotmail.com > > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 1, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [] rmqueue mm/page_alloc.c:3858 [inline] > [] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Not tainted 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 1, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [] rmqueue mm/page_alloc.c:3858 [inline] > [] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 1, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [] rmqueue mm/page_alloc.c:3858 [inline] > [] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 1, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [] rmqueue mm/page_alloc.c:3858 [inline] > [] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 2, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [] rmqueue mm/page_alloc.c:3858 [inline] > [] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: Unable to access opcode bytes at RIP 0x7f29330890df. > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 2, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [] rmqueue mm/page_alloc.c:3858 [inline] > [] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: Unable to access opcode bytes at RIP 0x7f29330890df. > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 2, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [] rmqueue mm/page_alloc.c:3858 [inline] > [] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: Unable to access opcode bytes at RIP 0x7f29330890df. > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 2, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [] rmqueue mm/page_alloc.c:3858 [inline] > [] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: Unable to access opcode bytes at RIP 0x7f29330890df. > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 2, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [] rmqueue mm/page_alloc.c:3858 [inline] > [] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: Unable to access opcode bytes at RIP 0x7f29330890df. > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 2, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [] rmqueue mm/page_alloc.c:3858 [inline] > [] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > __get_free_pages+0x8/0x40 mm/page_alloc.c:5561 > kasan_populate_vmalloc_pte mm/kasan/shadow.c:271 [inline] > kasan_populate_vmalloc_pte+0x25/0x160 mm/kasan/shadow.c:262 > apply_to_pte_range mm/memory.c:2648 [inline] > apply_to_pmd_range mm/memory.c:2692 [inline] > apply_to_pud_range mm/memory.c:2728 [inline] > apply_to_p4d_range mm/memory.c:2764 [inline] > __apply_to_page_range+0x68c/0x1030 mm/memory.c:2798 > alloc_vmap_area+0xacf/0x1d30 mm/vmalloc.c:1625 > __get_vm_area_node+0x142/0x3f0 mm/vmalloc.c:2483 > get_vm_area_caller mm/vmalloc.c:2536 [inline] > vmap+0x131/0x330 mm/vmalloc.c:2831 > relay_alloc_buf kernel/relay.c:129 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x4b2/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: Unable to access opcode bytes at RIP 0x7f29330890df. > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > > > --- > This report is generated by a bot. It may contain errors. > See https://goo.gl/tpsmEJ for more information about syzbot. > syzbot engineers can be reached at syzkaller@googlegroups.com. > > syzbot will keep track of this issue. See: > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. ---end quoted text---