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Wed, 08 Feb 2023 23:16:18 -0800 (PST) Date: Wed, 08 Feb 2023 23:16:18 -0800 In-Reply-To: <20230209061936.2127-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000003d940905f43f2864@google.com> Subject: Re: [syzbot] INFO: rcu detected stall in ext4_file_write_iter (6) From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot tried to test the proposed patch but the build/boot failed: ExtendedConfig ASPM ClockPM MSI] [ 2.704971][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended configuration space under this bridge [ 2.721274][ T1] PCI host bridge to bus 0000:00 [ 2.722257][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 2.723618][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 2.725109][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 2.726984][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 2.727782][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 2.729339][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 2.730963][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 2.739900][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 2.771630][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 2.799785][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 2.805032][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 2.817461][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 2.824197][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfe800000-0xfe80007f] [ 2.850249][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 2.860971][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 2.869561][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfe801000-0xfe80107f] [ 2.893212][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 [ 2.907509][ T1] pci 0000:00:05.0: reg 0x10: [mem 0xfe000000-0xfe7fffff] [ 2.938174][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 2.944947][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 [ 2.955123][ T1] pci 0000:00:06.0: reg 0x10: [io 0xc080-0xc09f] [ 2.962448][ T1] pci 0000:00:06.0: reg 0x14: [mem 0xfe802000-0xfe80207f] [ 2.988501][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 [ 2.999322][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc0a0-0xc0bf] [ 3.006863][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfe803000-0xfe80303f] [ 3.054017][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 3.061314][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 3.070348][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 3.078101][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 3.084571][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 3.100822][ T1] iommu: Default domain type: Translated [ 3.102824][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 3.110275][ T1] SCSI subsystem initialized [ 3.114447][ T1] ACPI: bus type USB registered [ 3.116457][ T1] usbcore: registered new interface driver usbfs [ 3.117993][ T1] usbcore: registered new interface driver hub [ 3.119852][ T1] usbcore: registered new device driver usb [ 3.122466][ T1] mc: Linux media interface: v0.10 [ 3.123533][ T1] videodev: Linux video capture interface: v2.00 [ 3.125526][ T1] pps_core: LinuxPPS API ver. 1 registered [ 3.126906][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 3.127854][ T1] PTP clock support registered [ 3.130020][ T1] EDAC MC: Ver: 3.0.0 [ 3.135116][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 3.143220][ T1] Bluetooth: Core ver 2.22 [ 3.144600][ T1] NET: Registered PF_BLUETOOTH protocol family [ 3.145633][ T1] Bluetooth: HCI device and connection manager initialized [ 3.147881][ T1] Bluetooth: HCI socket layer initialized [ 3.149539][ T1] Bluetooth: L2CAP socket layer initialized [ 3.150683][ T1] Bluetooth: SCO socket layer initialized [ 3.151990][ T1] NET: Registered PF_ATMPVC protocol family [ 3.153007][ T1] NET: Registered PF_ATMSVC protocol family [ 3.154497][ T1] NetLabel: Initializing [ 3.155425][ T1] NetLabel: domain hash size = 128 [ 3.156282][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 3.158252][ T1] NetLabel: unlabeled traffic allowed by default [ 3.160111][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 3.160111][ T1] NET: Registered PF_NFC protocol family [ 3.160111][ T1] PCI: Using ACPI for IRQ routing [ 3.160111][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 3.160111][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 3.161322][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 3.163054][ T1] vgaarb: loaded [ 3.177757][ T1] clocksource: Switched to clocksource kvm-clock [ 3.187013][ T1] VFS: Disk quotas dquot_6.6.0 [ 3.187770][ C0] ------------[ cut here ]------------ [ 3.188101][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 3.188708][ C0] jts hrtimer tick_sched_timer+0x0/0x120 runs more than 20 ticks [ 3.190632][ T1] FS-Cache: Loaded [ 3.191689][ C0] WARNING: CPU: 0 PID: 10 at kernel/time/hrtimer.c:1693 __hrtimer_run_queues+0xf76/0x1200 [ 3.193672][ T1] CacheFiles: Loaded [ 3.193967][ C0] Modules linked in: [ 3.195296][ C0] CPU: 0 PID: 10 Comm: kworker/u4:0 Not tainted 6.2.0-rc6-next-20230203-syzkaller #0 [ 3.195308][ T1] TOMOYO: 2.6.0 [ 3.196864][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 3.196881][ C0] Workqueue: eval_map_wq eval_map_work_func [ 3.197481][ T1] Mandatory Access Control activated. [ 3.201064][ T1] AppArmor: AppArmor Filesystem Enabled [ 3.197760][ C0] [ 3.197760][ C0] RIP: 0010:__hrtimer_run_queues+0xf76/0x1200 [ 3.202884][ T1] pnp: PnP ACPI init [ 3.197760][ C0] Code: 96 10 00 e9 1e f3 ff ff bd 01 00 00 00 e8 72 9a 10 00 48 8b 74 24 28 48 c7 c7 c0 d5 4e 8a c6 05 5e e1 eb 0c 01 e8 3a 2b d8 ff <0f> 0b e8 53 9a 10 00 31 ff 89 ee e8 5a 96 10 00 40 84 ed 0f 84 e3 [ 3.197760][ C0] RSP: 0000:ffffc90000007de0 EFLAGS: 00010082 [ 3.197760][ C0] RAX: 0000000000000000 RBX: ffffffff8e7519c0 RCX: 0000000000000000 [ 3.197760][ C0] RDX: ffff888016699d40 RSI: ffffffff814c0217 RDI: 0000000000000001 [ 3.197760][ C0] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ 3.197760][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b982b968 [ 3.197760][ C0] R13: ffff8880b982b880 R14: ffff8880b982c120 R15: ffff8880b982b800 [ 3.197760][ C0] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 3.197760][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.197760][ C0] CR2: ffff88823ffff000 CR3: 000000000c56f000 CR4: 00000000003506f0 [ 3.197760][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3.197760][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3.197760][ C0] Call Trace: [ 3.197760][ C0] [ 3.197760][ C0] ? tick_sched_do_timer+0x470/0x470 [ 3.223647][ T1] pnp: PnP ACPI: found 7 devices [ 3.197760][ C0] ? retrigger_next_event+0x3b0/0x3b0 [ 3.197760][ C0] ? ktime_get_update_offsets_now+0x3ef/0x5c0 [ 3.197760][ C0] hrtimer_interrupt+0x320/0x7b0 [ 3.197760][ C0] __sysvec_apic_timer_interrupt+0x180/0x660 [ 3.197760][ C0] sysvec_apic_timer_interrupt+0x92/0xc0 [ 3.197760][ C0] [ 3.197760][ C0] [ 3.197760][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3.197760][ C0] RIP: 0010:trace_event_eval_update+0x3a8/0xf70 [ 3.197760][ C0] Code: f7 ff 45 84 ed 0f 85 81 05 00 00 e8 e2 d8 f7 ff 89 de bf 5f 00 00 00 e8 e6 d4 f7 ff 80 fb 5f 0f 84 67 05 00 00 e8 c8 d8 f7 ff <4c> 8d 6d 01 4c 89 e8 4c 89 ea 48 c1 e8 03 83 e2 07 42 0f b6 04 38 [ 3.197760][ C0] RSP: 0000:ffffc900000f7c40 EFLAGS: 00000293 [ 3.237854][ C0] RAX: 0000000000000000 RBX: 0000000000000020 RCX: 0000000000000000 [ 3.237854][ C0] RDX: ffff888016699d40 RSI: ffffffff818c96e8 RDI: 0000000000000001 [ 3.237854][ C0] RBP: ffffffff8cf1cb8c R08: 0000000000000001 R09: 000000000000005f [ 3.237854][ C0] R10: 0000000000000020 R11: 495353415022202c R12: 0000000000000029 [ 3.237854][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 3.237854][ C0] ? trace_event_eval_update+0x3a8/0xf70 [ 3.237854][ C0] eval_map_work_func+0x3c/0x50 [ 3.237854][ C0] process_one_work+0x9bf/0x1820 [ 3.237854][ C0] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 3.237854][ C0] ? rcu_read_lock_sched_held+0x3e/0x70 [ 3.237854][ C0] ? spin_bug+0x1c0/0x1c0 [ 3.237854][ C0] ? lock_acquire+0x32/0xc0 [ 3.237854][ C0] ? worker_thread+0x16d/0x1090 [ 3.237854][ C0] worker_thread+0x669/0x1090 [ 3.237854][ C0] ? process_one_work+0x1820/0x1820 [ 3.237854][ C0] kthread+0x2e8/0x3a0 [ 3.237854][ C0] ? kthread_complete_and_exit+0x40/0x40 [ 3.237854][ C0] ret_from_fork+0x1f/0x30 [ 3.237854][ C0] [ 3.237854][ C0] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 3.237854][ C0] CPU: 0 PID: 10 Comm: kworker/u4:0 Not tainted 6.2.0-rc6-next-20230203-syzkaller #0 [ 3.237854][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 3.237854][ C0] Workqueue: eval_map_wq eval_map_work_func [ 3.237854][ C0] Call Trace: [ 3.237854][ C0] [ 3.237854][ C0] dump_stack_lvl+0xd9/0x150 [ 3.237854][ C0] panic+0x61b/0x6c0 [ 3.237854][ C0] ? panic_smp_self_stop+0x90/0x90 [ 3.237854][ C0] ? show_trace_log_lvl+0x285/0x390 [ 3.237854][ C0] ? __hrtimer_run_queues+0xf76/0x1200 [ 3.237854][ C0] check_panic_on_warn+0xb1/0xc0 [ 3.237854][ C0] __warn+0xf2/0x4f0 [ 3.237854][ C0] ? __hrtimer_run_queues+0xf76/0x1200 [ 3.237854][ C0] report_bug+0x2da/0x500 [ 3.237854][ C0] handle_bug+0x3c/0x70 [ 3.237854][ C0] exc_invalid_op+0x18/0x50 [ 3.237854][ C0] asm_exc_invalid_op+0x1a/0x20 [ 3.237854][ C0] RIP: 0010:__hrtimer_run_queues+0xf76/0x1200 [ 3.237854][ C0] Code: 96 10 00 e9 1e f3 ff ff bd 01 00 00 00 e8 72 9a 10 00 48 8b 74 24 28 48 c7 c7 c0 d5 4e 8a c6 05 5e e1 eb 0c 01 e8 3a 2b d8 ff <0f> 0b e8 53 9a 10 00 31 ff 89 ee e8 5a 96 10 00 40 84 ed 0f 84 e3 [ 3.237854][ C0] RSP: 0000:ffffc90000007de0 EFLAGS: 00010082 [ 3.237854][ C0] RAX: 0000000000000000 RBX: ffffffff8e7519c0 RCX: 0000000000000000 [ 3.237854][ C0] RDX: ffff888016699d40 RSI: ffffffff814c0217 RDI: 0000000000000001 [ 3.237854][ C0] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ 3.237854][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b982b968 [ 3.237854][ C0] R13: ffff8880b982b880 R14: ffff8880b982c120 R15: ffff8880b982b800 [ 3.237854][ C0] ? __warn_printk+0x187/0x310 [ 3.237854][ C0] ? tick_sched_do_timer+0x470/0x470 [ 3.237854][ C0] ? retrigger_next_event+0x3b0/0x3b0 [ 3.237854][ C0] ? ktime_get_update_offsets_now+0x3ef/0x5c0 [ 3.237854][ C0] hrtimer_interrupt+0x320/0x7b0 [ 3.237854][ C0] __sysvec_apic_timer_interrupt+0x180/0x660 [ 3.237854][ C0] sysvec_apic_timer_interrupt+0x92/0xc0 [ 3.237854][ C0] [ 3.237854][ C0] [ 3.237854][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 3.237854][ C0] RIP: 0010:trace_event_eval_update+0x3a8/0xf70 [ 3.237854][ C0] Code: f7 ff 45 84 ed 0f 85 81 05 00 00 e8 e2 d8 f7 ff 89 de bf 5f 00 00 00 e8 e6 d4 f7 ff 80 fb 5f 0f 84 67 05 00 00 e8 c8 d8 f7 ff <4c> 8d 6d 01 4c 89 e8 4c 89 ea 48 c1 e8 03 83 e2 07 42 0f b6 04 38 [ 3.237854][ C0] RSP: 0000:ffffc900000f7c40 EFLAGS: 00000293 [ 3.237854][ C0] RAX: 0000000000000000 RBX: 0000000000000020 RCX: 0000000000000000 [ 3.237854][ C0] RDX: ffff888016699d40 RSI: ffffffff818c96e8 RDI: 0000000000000001 [ 3.237854][ C0] RBP: ffffffff8cf1cb8c R08: 0000000000000001 R09: 000000000000005f [ 3.237854][ C0] R10: 0000000000000020 R11: 495353415022202c R12: 0000000000000029 [ 3.237854][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 3.237854][ C0] ? trace_event_eval_update+0x3a8/0xf70 [ 3.237854][ C0] eval_map_work_func+0x3c/0x50 [ 3.237854][ C0] process_one_work+0x9bf/0x1820 [ 3.237854][ C0] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 3.237854][ C0] ? rcu_read_lock_sched_held+0x3e/0x70 [ 3.237854][ C0] ? spin_bug+0x1c0/0x1c0 [ 3.237854][ C0] ? lock_acquire+0x32/0xc0 [ 3.237854][ C0] ? worker_thread+0x16d/0x1090 [ 3.237854][ C0] worker_thread+0x669/0x1090 [ 3.237854][ C0] ? process_one_work+0x1820/0x1820 [ 3.237854][ C0] kthread+0x2e8/0x3a0 [ 3.237854][ C0] ? kthread_complete_and_exit+0x40/0x40 [ 3.237854][ C0] ret_from_fork+0x1f/0x30 [ 3.237854][ C0] [ 3.237854][ C0] Rebooting in 86400 seconds.. syzkaller build log: go env (err=) GO111MODULE="auto" GOARCH="amd64" GOBIN="" GOCACHE="/syzkaller/.cache/go-build" GOENV="/syzkaller/.config/go/env" GOEXE="" GOEXPERIMENT="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOINSECURE="" GOMODCACHE="/syzkaller/jobs-2/linux/gopath/pkg/mod" GONOPROXY="" GONOSUMDB="" GOOS="linux" GOPATH="/syzkaller/jobs-2/linux/gopath" GOPRIVATE="" GOPROXY="https://proxy.golang.org,direct" GOROOT="/usr/local/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64" GOVCS="" GOVERSION="go1.17" GCCGO="gccgo" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build909161844=/tmp/go-build -gno-record-gcc-switches" git status (err=) HEAD detached at 1b2f701aa nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:32: run command via tools/syz-env for best compatibility, see: Makefile:33: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=1b2f701aa9a17abb7e27c7c1170d26398febf247 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230203-112454'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=1b2f701aa9a17abb7e27c7c1170d26398febf247 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230203-112454'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=1b2f701aa9a17abb7e27c7c1170d26398febf247 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230203-112454'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress mkdir -p ./bin/linux_amd64 gcc -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"1b2f701aa9a17abb7e27c7c1170d26398febf247\" Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=16d60afb480000 Tested on: commit: 4fafd969 Add linux-next specific files for 20230203 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git kernel config: https://syzkaller.appspot.com/x/.config?x=1d2fba7d42502ca4 dashboard link: https://syzkaller.appspot.com/bug?extid=b9564ba6e8e00694511b compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=1343af13480000