ci2 starts bisection 2024-08-06 18:32:08.485558586 +0000 UTC m=+15158.792325556 bisecting fixing commit since c2611a04b92f0e6a38f718c50605300a325b7c7b building syzkaller on acb1ba7170ce2a5c91ccaa197eb9e1c450e0d73a ensuring issue is reproducible on original commit c2611a04b92f0e6a38f718c50605300a325b7c7b testing commit c2611a04b92f0e6a38f718c50605300a325b7c7b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0416296d042084c3672b3447605a0b6905fdc00d35e3dc860c6298bf40f94d36 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit c2611a04b92f0e6a38f718c50605300a325b7c7b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c4780c0c6258ee324e2fc9c64a8718b3fa54c91320cf8570ef5b6857f6e56544 run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #6: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #7: OK run #8: OK run #9: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=5179 full=6487 leaves diff=250 split chunks (needed=false): <250> split chunk #0 of len 250 into 5 parts testing without sub-chunk 1/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit c2611a04b92f0e6a38f718c50605300a325b7c7b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c2316d3e7c627c9f826fe2563602e349e8667074f7dff2a10aacf7acff476e4e run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit c2611a04b92f0e6a38f718c50605300a325b7c7b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8e70cc397039046cb92a308240a4fd7502ca6fb3b24e06bbb52e64dfa98860d0 run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] unable to determine the verdict: 19 good runs (wanted 15), for bad wanted 10 in total, got 20 testing without sub-chunk 3/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit c2611a04b92f0e6a38f718c50605300a325b7c7b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 74503948a177fb47eca441cbf82c61e36c0f4c0d4a61ad4c97d125f29beaec09 run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #6: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #7: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit c2611a04b92f0e6a38f718c50605300a325b7c7b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1a520de3b78c98b6ca4b40c09c4c62c3357f1a544c182c019f1eff0b48b6fd62 run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: basic kernel testing failed: failed to copy binary to VM: timedout after 1m0s ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor2508149050" "root@10.128.0.3:./syz-executor2508149050"] Executing: program /usr/bin/ssh host 10.128.0.3, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u2, OpenSSL 3.0.11 19 Sep 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.0.3 [10.128.0.3] port 22. debug1: fd 3 clearing O_NONBLOCK debug1: Connection established. debug1: identity file /root/.ssh/id_rsa type -1 debug1: identity file /root/.ssh/id_rsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa type -1 debug1: identity file /root/.ssh/id_ecdsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa_sk type -1 debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /root/.ssh/id_ed25519 type -1 debug1: identity file /root/.ssh/id_ed25519-cert type -1 debug1: identity file /root/.ssh/id_ed25519_sk type -1 debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /root/.ssh/id_xmss type -1 debug1: identity file /root/.ssh/id_xmss-cert type -1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: identity file /root/.ssh/id_dsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_9.2p1 Debian-2+deb12u2 debug1: Remote protocol version 2.0, remote software version OpenSSH_9.1 debug1: compat_banner: match: OpenSSH_9.1 pat OpenSSH* compat 0x04000000 debug1: Authenticating to 10.128.0.3:22 as 'root' debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: sntrup761x25519-sha512@openssh.com debug1: kex: host key algorithm: ssh-ed25519 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY run #6: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit c2611a04b92f0e6a38f718c50605300a325b7c7b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building c2611a04b92f0e6a38f718c50605300a325b7c7b: net/socket.c:1225: undefined reference to `wext_handle_ioctl' net/socket.c:3420: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:329: undefined reference to `wext_proc_init' net/core/net-procfs.c:345: undefined reference to `wext_proc_exit' minimized to 150 configs; suspects: [COMMON_CLK FB HID_HOLTEK HID_ORTEK HID_PANTHERLORD HID_PENMOUNT HID_PETALYNX HID_PICOLCD_FB HID_PICOLCD_LEDS HID_PID HID_PRIMAX HID_PRODIKEYS HID_RMI HID_SAITEK HID_SAMSUNG HID_SENSOR_CUSTOM_SENSOR HID_SENSOR_HUB HID_SPEEDLINK HID_STEELSERIES HID_SUNPLUS HID_THINGM HID_TIVO HID_TOPSEED HID_TWINHAN HID_WALTOP HID_XINMO HID_ZEROPLUS HID_ZYDACRON HOLTEK_FF HOTPLUG_PCI HWMON HW_CONSOLE I2C_DESIGNWARE_CORE I2C_DESIGNWARE_PLATFORM I2C_MUX INPUT_JOYSTICK INPUT_LEDS INPUT_MOUSE INPUT_TOUCHSCREEN INTEGRITY INTEGRITY_AUDIT JOYSTICK_XPAD JOYSTICK_XPAD_FF JOYSTICK_XPAD_LEDS KCOV KCOV_ENABLE_COMPARISONS KCOV_INSTRUMENT_ALL LCD_CLASS_DEVICE LOCK_MM_AND_FIND_VMA LOGIG940_FF LOGIRUMBLEPAD2_FF LOGITECH_FF LOGIWHEELS_FF MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_TUNER MFD_CORE NET_DEVLINK NOP_USB_XCEIV PAHOLE_HAS_BTF_TAG PANTHERLORD_FF SND SOUND USB_CONFIGFS USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_ACC USB_CONFIGFS_F_AUDIO_SRC USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CONFIGFS_UEVENT USB_DWC3_OF_SIMPLE USB_EHSET_TEST_FIXTURE USB_F_ACC USB_F_ACM USB_F_AUDIO_SRC USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_NCM USB_F_OBEX USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB USB_F_SUBSET USB_F_UAC1 USB_F_UAC1_LEGACY USB_F_UAC2 USB_F_UVC USB_GADGET_DEBUG_FILES USB_GADGET_DEBUG_FS USB_IPHETH USB_ISP1760 USB_ISP1760_HCD USB_ISP1760_HOST_ROLE USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_MON USB_NET_CDC_MBIM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_DM9601 USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM VT WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_PURELIFI WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_SILABS WLAN_VENDOR_ZYDAS X86_X32_ABI ZEROPLUS_FF] disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing current HEAD 1bb38f786569a713fee1a7c98f7304369e36635b testing commit 1bb38f786569a713fee1a7c98f7304369e36635b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 062820e9689c4d93413693051620d7329688a73db5284cad7a002241bedcc1b5 run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #6: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release reproducer is flaky (0.40 repro chance estimate) revisions tested: 7, total time: 3h28m43.025604229s (build: 1h55m58.045990122s, test: 1h18m18.540405798s) crash still not fixed or there were kernel test errors commit msg: UPSTREAM: ring-buffer: Fix a race between readers and resize checks crash: kernel panic: EXT4-fs (device loop0): panic forced after error EXT4-fs (loop0): warning: checktime reached, running e2fsck is recommended EXT4-fs warning (device loop0): ext4_update_dynamic_rev:1086: updating to rev 1 because of new feature flag, running e2fsck is recommended EXT4-fs error (device loop0): ext4_validate_block_bitmap:429: comm syz-executor.0: bg 0: block 46: invalid block bitmap Kernel panic - not syncing: EXT4-fs (device loop0): panic forced after error Kernel Offset: disabled Rebooting in 86400 seconds..