ci starts bisection 2024-07-23 16:44:24.724672957 +0000 UTC m=+40210.118320887 bisecting fixing commit since b57b17e88bf58860dad312d08db7d6708ee6d06d building syzkaller on 6d6dbf8ab21a52df701946afac2a86f93a88fdc8 ensuring issue is reproducible on original commit b57b17e88bf58860dad312d08db7d6708ee6d06d testing commit b57b17e88bf58860dad312d08db7d6708ee6d06d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 12e3f163b12de4118d5d8a3d88623c32c49b54dfa88bdeb45ba21cc7ae35399b all runs: crashed: general protection fault in attr_data_read_resident representative crash: general protection fault in attr_data_read_resident, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit b57b17e88bf58860dad312d08db7d6708ee6d06d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ff2cbda0382270c001c2dbf50d26cd475d1c8ff871c075d1b3ae8300414599dd all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident representative crash: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed kconfig minimization: base=3993 full=7650 leaves diff=2016 split chunks (needed=false): <2016> split chunk #0 of len 2016 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 b57b17e88bf58860dad312d08db7d6708ee6d06d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 59b26c96e4b6b75807fdfce8818fbeb8651c5a605caa6e9ba108b6d1c40515ce all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident representative crash: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit b57b17e88bf58860dad312d08db7d6708ee6d06d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2540b9e9af58c327ed27e7e85b4da900abf831c220ea43f1abd50749ab0b5c21 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident representative crash: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit b57b17e88bf58860dad312d08db7d6708ee6d06d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 54ddd8085385ca92ef0e02f9c0c139b3f83a8814d1ba818353b3378515259cb5 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident representative crash: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit b57b17e88bf58860dad312d08db7d6708ee6d06d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4796acb1fdcc09a2fd3a14eef98f4a5ccdf549320630512ff949d21a1b67860e all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit b57b17e88bf58860dad312d08db7d6708ee6d06d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a1656e643cbc5db2b9020c8ba316828cc15399947b50668845e073db7e6a904 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident representative crash: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident, types: [UNKNOWN] the chunk can be dropped minimized to 404 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_HAS_UBSAN_SANITIZE_ALL ATM AX25 CFG80211 CMA DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN IP_SCTP L2TP LIBNVDIMM MEDIA_COMMON_OPTIONS MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_RETU MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NF_TABLES NF_TABLES_ARP NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 NLS_CODEPAGE_860 NLS_CODEPAGE_861 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 NLS_CODEPAGE_865 NLS_CODEPAGE_866 NLS_CODEPAGE_869 NLS_CODEPAGE_874 NLS_CODEPAGE_932 NLS_CODEPAGE_936 NLS_CODEPAGE_949 NLS_CODEPAGE_950 NLS_ISO8859_13 NLS_ISO8859_14 NLS_ISO8859_15 NLS_ISO8859_2 NLS_ISO8859_3 NLS_ISO8859_4 NLS_ISO8859_5 NLS_ISO8859_6 NLS_ISO8859_7 NLS_ISO8859_8 NLS_ISO8859_9 NLS_KOI8_R NLS_KOI8_U NLS_MAC_CELTIC NLS_MAC_CENTEURO NLS_MAC_CROATIAN NLS_MAC_CYRILLIC NLS_MAC_GAELIC NLS_MAC_GREEK NLS_MAC_ICELAND NLS_MAC_INUIT NLS_MAC_ROMAN NLS_MAC_ROMANIAN NLS_MAC_TURKISH NLS_UCS2_UTILS NOP_USB_XCEIV NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NTFS_FS NTFS_RW NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN NVME_CORE NVME_FABRICS NVME_FC NVME_MULTIPATH NVME_RDMA NVME_TARGET NVME_TARGET_FC NVME_TARGET_FCLOOP NVME_TARGET_LOOP NVME_TARGET_RDMA NVME_TARGET_TCP NVME_TCP N_GSM N_HDLC OCFS2_DEBUG_FS OCFS2_FS OCFS2_FS_O2CB OCFS2_FS_STATS OCFS2_FS_USERSPACE_CLUSTER OF_GPIO OF_PMEM OMFS_FS OPENVSWITCH OPENVSWITCH_GENEVE OPENVSWITCH_GRE OPENVSWITCH_VXLAN ORANGEFS_FS OSF_PARTITION OVERLAY_FS OVERLAY_FS_DEBUG OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PAGE_IDLE_FLAG PAGE_POOL PAGE_REPORTING PAHOLE_HAS_BTF_TAG PAHOLE_HAS_LANG_EXCLUDE PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS PHONET PHYLINK PHY_CPCAP_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PM_CLK PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOE_HASH_BITS_4 PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_NOTIFIERS PRISM2_USB PROC_CHILDREN PSI PSTORE PSTORE_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN R8712U RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_TEA575X RAID6_PQ RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGULATOR REGULATOR_TWL4030 REISERFS_FS REISERFS_FS_POSIX_ACL REISERFS_FS_SECURITY REISERFS_FS_XATTR REISERFS_PROC_INFO RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SAS_ATA SCSI_SAS_ATTRS SCSI_SAS_LIBSAS SCSI_SCAN_ASYNC SCSI_SRP_ATTRS SCTP_COOKIE_HMAC_MD5 SCTP_COOKIE_HMAC_SHA1 SCTP_DEFAULT_COOKIE_HMAC_MD5 SECONDARY_TRUSTED_KEYRING SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SECURITY_SMACK_NETFILTER SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS SMC SMC_DIAG SMSC_PHY SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_FAST_LOOKUP SND_CTL_LED SND_DEBUG SND_DMA_SGBUF SND_DRIVERS SND_DUMMY SND_DYNAMIC_MINORS SND_HDA SND_HDA_CODEC_ANALOG SND_HDA_CODEC_CA0110 SND_HDA_CODEC_CA0132 SND_HDA_CODEC_CIRRUS SND_HDA_CODEC_CMEDIA SND_HDA_CODEC_CONEXANT SND_HDA_CODEC_HDMI SND_HDA_CODEC_REALTEK SND_HDA_CODEC_SI3054 SND_HDA_CODEC_SIGMATEL SND_HDA_CODEC_VIA SND_HDA_COMPONENT SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_I915 SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG SND_HRTIMER SND_HWDEP SND_INTEL_DSP_CONFIG SND_INTEL_NHLT SND_INTEL_SOUNDWIRE_ACPI SND_JACK SND_JACK_INPUT_DEV SND_MIXER_OSS SND_OSSEMUL SND_PCI SND_PCM SND_PCMCIA SND_PCM_OSS SND_PCM_OSS_PLUGINS SND_PCM_TIMER SND_PCM_XRUN_DEBUG SND_PROC_FS SND_RAWMIDI SND_SEQUENCER SND_SEQUENCER_OSS SND_SEQ_DEVICE SND_SEQ_DUMMY SND_SEQ_HRTIMER_DEFAULT SND_SEQ_MIDI SND_SEQ_MIDI_EVENT SND_SEQ_VIRMIDI SND_SUPPORT_OLD_API SND_TIMER SND_USB SND_USB_6FIRE SND_USB_AUDIO SND_USB_AUDIO_USE_MEDIA_CONTROLLER SND_USB_CAIAQ SND_USB_CAIAQ_INPUT SND_USB_HIFACE SND_USB_LINE6 SND_USB_POD SND_USB_PODHD SND_USB_TONEPORT SND_USB_UA101 SND_USB_US122L SND_USB_USX2Y SND_USB_VARIAX SND_VERBOSE_PROCFS SND_VIRMIDI SND_VIRTIO SND_VMASTER SND_X86 SOCK_VALIDATE_XMIT SOLARIS_X86_PARTITION SONY_FF SOUND SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_COMPILE_DECOMP_SINGLE SQUASHFS_DECOMP_SINGLE SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZLIB SQUASHFS_ZSTD SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STAGING STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC SYSFB SYSV68_PARTITION SYSV_FS TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TASKS_TRACE_RCU TCG_CRB TCG_TIS TCG_TIS_CORE TCG_TPM TCP_CONG_BBR TCP_CONG_BIC TCP_CONG_CDG TCP_CONG_DCTCP TCP_CONG_HSTCP TCP_CONG_HTCP TCP_CONG_HYBLA TCP_CONG_ILLINOIS TCP_CONG_LP TCP_CONG_NV TCP_CONG_SCALABLE TCP_CONG_VEGAS TCP_CONG_VENO TCP_CONG_WESTWOOD TCP_CONG_YEAH TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THERMAL_NETLINK THERMAL_WRITABLE_TRIPS THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE TMPFS_QUOTA TOUCHSCREEN_SUR40 TOUCHSCREEN_USB_3M TOUCHSCREEN_USB_COMPOSITE TOUCHSCREEN_USB_DMC_TSC10 TOUCHSCREEN_USB_E2I TOUCHSCREEN_USB_EASYTOUCH TOUCHSCREEN_USB_EGALAX TOUCHSCREEN_USB_ELO TOUCHSCREEN_USB_ETT_TC45USB TOUCHSCREEN_USB_ETURBO TOUCHSCREEN_USB_GENERAL_TOUCH TOUCHSCREEN_USB_GOTOP TOUCHSCREEN_USB_GUNZE TOUCHSCREEN_USB_IDEALTEK TOUCHSCREEN_USB_IRTOUCH TOUCHSCREEN_USB_ITM TOUCHSCREEN_USB_JASTEC TOUCHSCREEN_USB_NEXIO TOUCHSCREEN_USB_PANJIT TOUCHSCREEN_USB_ZYTRONIC TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TTPCI_EEPROM TTY_PRINTK TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_FUSB302 TYPEC_TCPCI TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UBSAN_SANITIZE_ALL UCSI_ACPI UDF_FS UDMABUF UFS_FS UFS_FS_WRITE UHID ULTRIX_PARTITION UNICODE UNIXWARE_DISKLABEL UNIX_DIAG UNIX_SCM USB4 USB4_NET USBIP_CORE USBIP_HOST USBIP_VHCI_HCD USBIP_VUDC USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_BDC_UDC USB_BELKIN USB_C67X00_HCD USB_CATC USB_CDC_PHONET USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_HOST USB_CHIPIDEA_NPCM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_DWC2 USB_GADGET USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VXLAN WIRELESS WLAN ZONE_DEVICE] disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing current HEAD 66ebbdfdeb093e097399b1883390079cd4c3022b testing commit 66ebbdfdeb093e097399b1883390079cd4c3022b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f0bf4489b1e34575ed5c6e5bcd4c03b68ab56f96564d71c47cc61198f54906a7 all runs: OK false negative chance: 0.000 # git bisect start 66ebbdfdeb093e097399b1883390079cd4c3022b b57b17e88bf58860dad312d08db7d6708ee6d06d Bisecting: 30036 revisions left to test after this (roughly 15 steps) [3bcb0bf65c2b8d67dbe7509da8d1461ee4445db7] Merge tag 'tty-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit 3bcb0bf65c2b8d67dbe7509da8d1461ee4445db7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9f5f727c6e4c9355c3682595ac2f8ba31a90f7b73e3c36e773f71f09a3d84096 all runs: OK false negative chance: 0.000 # git bisect bad 3bcb0bf65c2b8d67dbe7509da8d1461ee4445db7 Bisecting: 15046 revisions left to test after this (roughly 14 steps) [9d64bf433c53cab2f48a3fff7a1f2a696bc5229a] Merge tag 'perf-tools-for-v6.8-1-2024-01-09' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit 9d64bf433c53cab2f48a3fff7a1f2a696bc5229a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7917c2a63e8fae739e95ff8cb0cf0053ea5056f2dec383f90f88b083986310b1 all runs: OK false negative chance: 0.000 # git bisect bad 9d64bf433c53cab2f48a3fff7a1f2a696bc5229a Bisecting: 7290 revisions left to test after this (roughly 13 steps) [c4101e55974cc7d835fbd2d8e01553a3f61e9e75] Merge tag 'soc-dt-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit c4101e55974cc7d835fbd2d8e01553a3f61e9e75 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 70bcf27b9d1de9c8fc3735914dcf4320014ccfd6298dc1edb3b5ecdbd4ec730f all runs: OK false negative chance: 0.000 # git bisect bad c4101e55974cc7d835fbd2d8e01553a3f61e9e75 Bisecting: 3867 revisions left to test after this (roughly 12 steps) [a7e4c6cf5bbbd8fea2be1cef0540e5cf107c43c2] Merge tag 'efi-next-for-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit a7e4c6cf5bbbd8fea2be1cef0540e5cf107c43c2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 583870aca00214239ce572ac3cf2a28ae84efcd0da99eab27f11e00a5c2d3361 all runs: OK false negative chance: 0.000 # git bisect bad a7e4c6cf5bbbd8fea2be1cef0540e5cf107c43c2 Bisecting: 1942 revisions left to test after this (roughly 11 steps) [fa655abe42c65e7e4ad52baf280dadfb571c110e] Merge tag 'input-for-v6.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit fa655abe42c65e7e4ad52baf280dadfb571c110e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fd484c19b7f8c753a1a62e606bc3d0cb0602adea1c5eb82387c5afba235bd4e4 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident representative crash: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident, types: [UNKNOWN] # git bisect good fa655abe42c65e7e4ad52baf280dadfb571c110e Bisecting: 1066 revisions left to test after this (roughly 10 steps) [d30e51aa7b1f6fa7dd78d4598d1e4c047fcc3fb9] Merge tag 'slab-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit d30e51aa7b1f6fa7dd78d4598d1e4c047fcc3fb9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d9642b5a1ef7f9658d76ba76443589e829b06916a69a37495f78197d9b94d765 all runs: OK false negative chance: 0.000 # git bisect bad d30e51aa7b1f6fa7dd78d4598d1e4c047fcc3fb9 Bisecting: 438 revisions left to test after this (roughly 9 steps) [1dee7f509db20402a25be94003f8f1ac3e17bdc1] Merge tag 'edac_updates_for_v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras determine whether the revision contains the guilty commit revision fa655abe42c65e7e4ad52baf280dadfb571c110e crashed and is reachable testing commit 1dee7f509db20402a25be94003f8f1ac3e17bdc1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b82a3255eaf17add29cabb91a6b1665bd96daa8c6922034a8dd68a01adb2136a all runs: OK false negative chance: 0.000 # git bisect bad 1dee7f509db20402a25be94003f8f1ac3e17bdc1 Bisecting: 217 revisions left to test after this (roughly 8 steps) [1f874787ed9a2d78ed59cb21d0d90ac0178eceb0] Merge tag 'net-6.7-rc9' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit 1f874787ed9a2d78ed59cb21d0d90ac0178eceb0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a289d8b2d9db1ea1e8fa2131631edb9354cf434a850deb47a097979dfcdd2cc7 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident representative crash: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident, types: [UNKNOWN] # git bisect good 1f874787ed9a2d78ed59cb21d0d90ac0178eceb0 Bisecting: 119 revisions left to test after this (roughly 7 steps) [c604110e662a54568073a03176402b624e740310] Merge tag 'vfs-6.8.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit c604110e662a54568073a03176402b624e740310 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b159b1e855f6f7264fb5783026f3de518f533a3dd2bb486594d6734d9509415b all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident representative crash: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident, types: [UNKNOWN] # git bisect good c604110e662a54568073a03176402b624e740310 Bisecting: 48 revisions left to test after this (roughly 6 steps) [bb93c5ed457fe76597c14717eb994fc5aef22716] Merge tag 'vfs-6.8.rw' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs determine whether the revision contains the guilty commit revision fa655abe42c65e7e4ad52baf280dadfb571c110e crashed and is reachable testing commit bb93c5ed457fe76597c14717eb994fc5aef22716 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a3c25bbf7084deedc0d6d5a54415b7ede947c544d2a3e3b7c9d45d1b8fb3b8d4 all runs: OK false negative chance: 0.000 # git bisect bad bb93c5ed457fe76597c14717eb994fc5aef22716 Bisecting: 31 revisions left to test after this (roughly 5 steps) [8c9440fea77440772542d6dbcb5c36182495c164] Merge tag 'vfs-6.8.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs determine whether the revision contains the guilty commit revision fa655abe42c65e7e4ad52baf280dadfb571c110e crashed and is reachable testing commit 8c9440fea77440772542d6dbcb5c36182495c164 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 88aa7262ac504816783ff8cb18811c78c42a361c8ac4d51e8ccd470a52aabaa8 all runs: OK false negative chance: 0.000 # git bisect bad 8c9440fea77440772542d6dbcb5c36182495c164 Bisecting: 19 revisions left to test after this (roughly 4 steps) [cd34758c5238ae6976b10fe15bba7031b409c969] block: Remove blkdev_get_by_*() functions determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit cd34758c5238ae6976b10fe15bba7031b409c969 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7a9471b33abded9b5e457b6cff9c3a89f9b716299e6ea4fb88d07e56b9177ee6 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident representative crash: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident, types: [UNKNOWN] # git bisect good cd34758c5238ae6976b10fe15bba7031b409c969 Bisecting: 9 revisions left to test after this (roughly 3 steps) [5bd3cf8cbc8a286308ef3f40656659d5abc89995] add selftest for statmount/listmount determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit 5bd3cf8cbc8a286308ef3f40656659d5abc89995 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 53a3bfa3d3d1aad943d7bed37c978b5da4bc30638172624787acff29a8bf7c16 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident representative crash: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident, types: [UNKNOWN] # git bisect good 5bd3cf8cbc8a286308ef3f40656659d5abc89995 Bisecting: 4 revisions left to test after this (roughly 2 steps) [afde134b5bd02a5c719336ca1d0d3cb7e4def70e] ext4: Block writes to journal device determine whether the revision contains the guilty commit revision cd34758c5238ae6976b10fe15bba7031b409c969 crashed and is reachable testing commit afde134b5bd02a5c719336ca1d0d3cb7e4def70e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 28b798e30e88b16af05066fe4ccd739453bb91c09f0d3222f684963b724911d5 all runs: OK false negative chance: 0.000 # git bisect bad afde134b5bd02a5c719336ca1d0d3cb7e4def70e Bisecting: 2 revisions left to test after this (roughly 1 step) [ead622674df5a3ae575b964090bee65f6b7f805f] btrfs: Do not restrict writes to btrfs devices determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit ead622674df5a3ae575b964090bee65f6b7f805f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 757cb64e8ba1917994fe6d24ee298c1cc0e3d866d2e6f33e6f97d1a5e4366532 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident representative crash: BUG: unable to handle kernel NULL pointer dereference in attr_data_read_resident, types: [UNKNOWN] # git bisect good ead622674df5a3ae575b964090bee65f6b7f805f Bisecting: 0 revisions left to test after this (roughly 1 step) [3584c8f48a70c1f74c7b7bab59cf22bb66224649] xfs: Block writes to log device determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit 3584c8f48a70c1f74c7b7bab59cf22bb66224649 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ddd481e307f4b97095f0fa5d13e12f3cc2b93da65724aa1564fcfbfd1e50911f all runs: OK false negative chance: 0.000 # git bisect bad 3584c8f48a70c1f74c7b7bab59cf22bb66224649 Bisecting: 0 revisions left to test after this (roughly 0 steps) [6f861765464f43a71462d52026fbddfc858239a5] fs: Block writes to mounted block devices determine whether the revision contains the guilty commit revision b57b17e88bf58860dad312d08db7d6708ee6d06d crashed and is reachable testing commit 6f861765464f43a71462d52026fbddfc858239a5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3595f49fa34bd95443b3a25bce8c543384a06e3d9de90fb4b0df751cde8a437b all runs: OK false negative chance: 0.000 # git bisect bad 6f861765464f43a71462d52026fbddfc858239a5 6f861765464f43a71462d52026fbddfc858239a5 is the first bad commit commit 6f861765464f43a71462d52026fbddfc858239a5 Author: Jan Kara Date: Wed Nov 1 18:43:10 2023 +0100 fs: Block writes to mounted block devices Ask block layer to block writes to block devices mounted by filesystems. Signed-off-by: Jan Kara Link: https://lore.kernel.org/r/20231101174325.10596-5-jack@suse.cz Reviewed-by: Christian Brauner Reviewed-by: Jens Axboe Signed-off-by: Christian Brauner include/linux/blkdev.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: 3595f49fa34bd95443b3a25bce8c543384a06e3d9de90fb4b0df751cde8a437b parent signature: 757cb64e8ba1917994fe6d24ee298c1cc0e3d866d2e6f33e6f97d1a5e4366532 revisions tested: 25, total time: 7h12m51.101784441s (build: 4h19m20.197421161s, test: 2h38m54.71674366s) first good commit: 6f861765464f43a71462d52026fbddfc858239a5 fs: Block writes to mounted block devices recipients (to): ["axboe@kernel.dk" "brauner@kernel.org" "jack@suse.cz"] recipients (cc): []