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X-Gm-Message-State: AOJu0Yw9fqlROH816z62ns+dpnlQo6En1L7auMrKtcGSrglbsn7KMcl8 LRqwNEZMR7HwEdKBrWuVFnR1L9Ryg91J2Ef5oC4yl5Nh+QYetEfJf48mIoVEr/wypPxlGW7aQz3 wfYbciNo3aX6+bk15PBPOSfKzAMSOsk1aQBTxYp5WU7yTySOkaaxeDCU= X-Google-Smtp-Source: AGHT+IGXR35b68JoZdM5KbrNRImTgiLusD+wckXhPgfHS4jFV5Rb26SSvqGiOg+0+x6+N9insGGF4pxSJfxO2UlEzGa8pu+T0+5t MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1ca1:b0:3a0:a3cd:f239 with SMTP id e9e14a558f8ab-3a36591fa85mr65941075ab.8.1727939782459; Thu, 03 Oct 2024 00:16:22 -0700 (PDT) Date: Thu, 03 Oct 2024 00:16:22 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <66fe44c6.050a0220.9ec68.0032.GAE@google.com> Subject: [syzbot] [mm?] INFO: rcu detected stall in kjournald2 (2) From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Stat-Signature: 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 6wzG5A5R og4psyjLAKa61YOPWW61yVP18gjSh9wZLMKE0BNxSJRQjSdTYvjRUf95TViGAZSOBBkvyO9moatHlm5KiLXGYSdLbsy0VJkdWDSjSw9T9bN+b6ti+012v01BUiO8UPaVYa2w7spsBXQTNoPUvQJzWl79cbLkfP3Nn3se4o6owvRrMThuFPb9YUDBT0YcpEQ0hk2k0VkUr3A7qVy7OFs1j7o8HloWz8LlKJTWyBHl+X7kVojJzCrpfNpaljunKZlYDyGV5JYDZHala/W4F7/pF9oJNG2pqUdZfNL+tpYVWro2jUr4Zl35C38WBf7V7YcURAGsGZwop4sennk2+Nta/Z5YotVk15ovkHGTV/nqv1A= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, syzbot found the following issue on: HEAD commit: d505d3593b52 net: wwan: qcom_bam_dmux: Fix missing pm_runt.. git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=14aade80580000 kernel config: https://syzkaller.appspot.com/x/.config?x=b2d4fdf18a83ec0b dashboard link: https://syzkaller.appspot.com/bug?extid=14c6ac6811273526cfa5 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=164df6a9980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=179ffe27980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/0286a1cf90df/disk-d505d359.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/b573fa96ab33/vmlinux-d505d359.xz kernel image: https://storage.googleapis.com/syzbot-assets/cdd9993102ed/bzImage-d505d359.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+14c6ac6811273526cfa5@syzkaller.appspotmail.com rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P4645/1:b..l rcu: (detected by 1, t=10503 jiffies, g=5945, q=1808706 ncpus=2) task:jbd2/sda1-8 state:R running task stack:23792 pid:4645 tgid:4645 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0x1895/0x4b30 kernel/sched/core.c:6675 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6997 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:stack_trace_consume_entry+0x7/0x280 kernel/stacktrace.c:83 Code: ff e8 fd 9b 44 0a 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 41 57 <41> 56 41 55 41 54 53 48 83 ec 18 48 89 fb 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc9000e59f168 EFLAGS: 00000286 RAX: ffffffff81ef7ceb RBX: ffffc9000e59f180 RCX: ffffffff917b9000 RDX: ffffffff91966401 RSI: ffffffff81ef7ceb RDI: ffffc9000e59f260 RBP: ffffc9000e59f210 R08: ffffc9000e59f4c0 R09: 0000000000000000 R10: ffffc9000e59f1d0 R11: ffffffff81806870 R12: ffff8880318bbc00 R13: ffffffff81806870 R14: ffffc9000e59f260 R15: 0000000000000000 arch_stack_walk+0x10e/0x150 arch/x86/kernel/stacktrace.c:27 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 save_stack+0xfb/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x76/0x430 mm/page_owner.c:297 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2638 discard_slab mm/slub.c:2678 [inline] __put_partials+0xeb/0x130 mm/slub.c:3146 put_cpu_partial+0x17c/0x250 mm/slub.c:3221 __slab_free+0x2ea/0x3d0 mm/slub.c:4450 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4086 [inline] slab_alloc_node mm/slub.c:4135 [inline] kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4142 alloc_buffer_head+0x2a/0x290 fs/buffer.c:3020 jbd2_journal_write_metadata_buffer+0xc2/0xa60 fs/jbd2/journal.c:349 jbd2_journal_commit_transaction+0x1b36/0x67e0 fs/jbd2/commit.c:663 kjournald2+0x41c/0x7b0 fs/jbd2/journal.c:201 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 rcu: rcu_preempt kthread starved for 10531 jiffies! g5945 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:25888 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0x1895/0x4b30 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6767 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2615 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5277 Comm: kworker/0:4 Not tainted 6.11.0-syzkaller-11503-gd505d3593b52 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events nsim_dev_trap_report_work RIP: 0010:unwind_next_frame+0x46b/0x22d0 arch/x86/kernel/unwind_orc.c:512 Code: 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df 42 0f b6 04 20 84 c0 0f 85 64 17 00 00 c6 03 01 48 c7 c2 e0 48 08 8c 48 8b 6c 24 50 <4c> 8d 7a 04 48 8d 5a 05 4c 89 f8 48 c1 e8 03 48 89 44 24 70 42 0f RSP: 0018:ffffc900000067f0 EFLAGS: 00000202 RAX: 0000000000000002 RBX: ffffffff912967b2 RCX: ffffffff90873278 RDX: ffffffff912967ae RSI: ffffffff912967ae RDI: 0000000000000001 RBP: ffffc90000006910 R08: 0000000000000001 R09: ffffc900000069b0 R10: ffffc90000006910 R11: ffffffff81806870 R12: dffffc0000000000 R13: ffffc900000068c0 R14: ffffffff912967b3 R15: ffffffff89f7ea91 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200000c0 CR3: 0000000032f5c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 ref_tracker_alloc+0x188/0x490 lib/ref_tracker.c:209 __netdev_tracker_alloc include/linux/netdevice.h:4050 [inline] netdev_hold include/linux/netdevice.h:4079 [inline] dst_init+0xee/0x490 net/core/dst.c:52 dst_alloc+0x14f/0x190 net/core/dst.c:93 rt_dst_alloc net/ipv4/route.c:1612 [inline] __mkroute_output net/ipv4/route.c:2573 [inline] ip_route_output_key_hash_rcu+0x13cc/0x2390 net/ipv4/route.c:2795 ip_route_output_key_hash+0x193/0x2b0 net/ipv4/route.c:2624 __ip_route_output_key include/net/route.h:141 [inline] ip_route_output_flow+0x29/0x140 net/ipv4/route.c:2852 ip_route_output_key include/net/route.h:151 [inline] ip_route_me_harder+0x80d/0x1300 net/ipv4/netfilter.c:53 synproxy_send_tcp+0x356/0x6c0 net/netfilter/nf_synproxy_core.c:431 synproxy_send_client_synack+0x8b8/0xf30 net/netfilter/nf_synproxy_core.c:484 nft_synproxy_eval_v4+0x3ca/0x610 net/netfilter/nft_synproxy.c:59 nft_synproxy_do_eval+0x362/0xa60 net/netfilter/nft_synproxy.c:141 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline] nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288 nft_do_chain_inet+0x418/0x6b0 net/netfilter/nft_chain_filter.c:161 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626 nf_hook include/linux/netfilter.h:269 [inline] NF_HOOK+0x29e/0x450 include/linux/netfilter.h:312 NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314 __netif_receive_skb_one_core net/core/dev.c:5662 [inline] __netif_receive_skb+0x2bf/0x650 net/core/dev.c:5775 process_backlog+0x662/0x15b0 net/core/dev.c:6107 __napi_poll+0xcb/0x490 net/core/dev.c:6771 napi_poll net/core/dev.c:6840 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:6962 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 do_softirq+0x11b/0x1e0 kernel/softirq.c:455 __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382 spin_unlock_bh include/linux/spinlock.h:396 [inline] nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline] nsim_dev_trap_report_work+0x75d/0xaa0 drivers/net/netdevsim/dev.c:850 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 3.091 msecs --- This report is generated by a bot. 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