ci starts bisection 2025-07-11 02:29:16.284259473 +0000 UTC m=+5050.775833070 bisecting cause commit starting from 835244aba90de290b4b0b1fa92b6734f3ee7b3d9 building syzkaller on 956bd956bb0433519b165665a40c8f2463bdf21a fetch other tags and check if the commit is present ensuring issue is reproducible on original commit 835244aba90de290b4b0b1fa92b6734f3ee7b3d9 testing commit 835244aba90de290b4b0b1fa92b6734f3ee7b3d9 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: e39d2904c4851c1d1f0f2d764ff137854646448b94a40032a1031f94781cea37 all runs: crashed: WARNING in bdev_getblk representative crash: WARNING in bdev_getblk, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [ubsan kasan locking atomic_sleep hang memleak], they are not needed testing commit 835244aba90de290b4b0b1fa92b6734f3ee7b3d9 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 2e2edd36428109bc156a2e30f103a8301e0f0496f0c908b2a1d9bd779e494d74 all runs: crashed: WARNING in bdev_getblk representative crash: WARNING in bdev_getblk, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed kconfig minimization: base=4095 full=8504 leaves diff=2186 split chunks (needed=false): <2186> split chunk #0 of len 2186 into 5 parts testing without sub-chunk 1/5 disabling configs for [ubsan kasan locking atomic_sleep hang memleak], they are not needed testing commit 835244aba90de290b4b0b1fa92b6734f3ee7b3d9 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: a1aa5832a4941b69a773cb382b7d8af1579d939abda6b322f3812b3eaef17349 all runs: crashed: WARNING in bdev_getblk representative crash: WARNING in bdev_getblk, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [atomic_sleep hang memleak ubsan kasan locking], they are not needed testing commit 835244aba90de290b4b0b1fa92b6734f3ee7b3d9 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 47234b0cfca3d8f20d7a7149a80b71910bc3f8e3edbec33e70ed8ebb0639df7f all runs: OK false negative chance: 0.000 testing without sub-chunk 3/5 disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed testing commit 835244aba90de290b4b0b1fa92b6734f3ee7b3d9 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 9d9788bed6fd848dc186cf2dbc2531286d8d8483fd88b96f1bd5252eb4794547 all runs: crashed: WARNING in bdev_getblk representative crash: WARNING in bdev_getblk, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [locking atomic_sleep hang memleak ubsan kasan], they are not needed testing commit 835244aba90de290b4b0b1fa92b6734f3ee7b3d9 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 9496e855cb2ecbd3e949fb7fa47c19b48218e604755c58afe6a14fd3825c5245 all runs: crashed: WARNING in bdev_getblk representative crash: WARNING in bdev_getblk, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed testing commit 835244aba90de290b4b0b1fa92b6734f3ee7b3d9 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: c3457540050ff6aa061318f5e7103fa3c7dab1f6e7f238ec4793518d59f4b823 all runs: crashed: WARNING in bdev_getblk representative crash: WARNING in bdev_getblk, types: [WARNING] the chunk can be dropped minimized to 438 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI BLK_DEV_ZONED CHARGER_BQ24190 CMA COMMON_CLK DAX DCB DEBUG_VFS DEFAULT_CODEL DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DLM DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID DM_AUDIT DM_BIO_PRISON DM_BUFIO DM_CACHE DM_CACHE_SMQ DM_CLONE DM_CRYPT DM_FLAKEY DM_INTEGRITY DM_MULTIPATH DM_MULTIPATH_QL DM_MULTIPATH_ST DM_PERSISTENT_DATA DM_RAID DM_SNAPSHOT DM_THIN_PROVISIONING DM_UEVENT DM_VERITY DM_VERITY_FEC DM_WRITECACHE DM_ZONED DRAGONRISE_FF DRM DRM_AUX_BRIDGE DRM_BOCHS DRM_BRIDGE DRM_BUDDY DRM_CIRRUS_QEMU DRM_CLIENT DRM_CLIENT_DEFAULT_FBDEV DRM_CLIENT_LIB DRM_CLIENT_SELECTION DRM_CLIENT_SETUP DRM_DEBUG_MM DRM_DISPLAY_DP_AUX_BUS DRM_DISPLAY_DP_HELPER DRM_DISPLAY_DSC_HELPER DRM_DISPLAY_HDCP_HELPER DRM_DISPLAY_HDMI_HELPER DRM_DISPLAY_HELPER DRM_FBDEV_EMULATION DRM_GEM_SHMEM_HELPER DRM_GM12U320 DRM_GUD DRM_I915 DRM_I915_CAPTURE_ERROR DRM_I915_COMPRESS_ERROR DRM_I915_USERPTR DRM_KMS_HELPER DRM_MIPI_DSI DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_EDP DRM_PANEL_ORIENTATION_QUIRKS DRM_SIMPLEDRM DRM_SYSFB_HELPER DRM_TTM DRM_TTM_HELPER DRM_UDL DRM_VGEM DRM_VIRTIO_GPU DRM_VIRTIO_GPU_KMS DRM_VKMS DRM_VMWGFX DUMMY DVB_AF9013 DVB_AF9033 DVB_AS102 DVB_AS102_FE DVB_B2C2_FLEXCOP DVB_B2C2_FLEXCOP_USB DVB_CORE DVB_DIB3000MB DVB_DIB3000MC DVB_EC100 DVB_GP8PSK_FE DVB_RTL2830 DVB_RTL2832 DVB_RTL2832_SDR DVB_TEST_DRIVERS DVB_TTUSB_BUDGET DVB_TTUSB_DEC DVB_USB DVB_USB_A800 DVB_USB_AF9005 DVB_USB_AF9005_REMOTE DVB_USB_AF9015 DVB_USB_AF9035 DVB_USB_ANYSEE DVB_USB_AU6610 DVB_USB_AZ6007 DVB_USB_AZ6027 DVB_USB_CE6230 DVB_USB_CINERGY_T2 DVB_USB_CXUSB DVB_USB_CXUSB_ANALOG DVB_USB_DIB0700 DVB_USB_DIB3000MC DVB_USB_DIBUSB_MB DVB_USB_DIBUSB_MC DVB_USB_DIGITV DVB_USB_DTT200U DVB_USB_DTV5100 DVB_USB_DVBSKY DVB_USB_DW2102 DVB_USB_EC168 DVB_USB_GL861 DVB_USB_GP8PSK DVB_USB_LME2510 DVB_USB_M920X DVB_USB_MXL111SF DVB_USB_NOVA_T_USB2 DVB_USB_OPERA1 DVB_USB_PCTV452E DVB_USB_RTL28XXU DVB_USB_TECHNISAT_USB2 DVB_USB_TTUSB2 DVB_USB_UMT_010 DVB_USB_V2 DVB_USB_VP702X DVB_USB_VP7045 DVB_USB_ZD1301 DVB_VIDTV DVB_ZL10353 ECRYPT_FS ECRYPT_FS_MESSAGING EDAC EFS_FS ENCRYPTED_KEYS EQUALIZER EROFS_FS EROFS_FS_POSIX_ACL EROFS_FS_SECURITY EROFS_FS_XATTR EROFS_FS_ZIP EVM EVM_ADD_XATTRS EVM_ATTR_FSUUID EXFAT_FS EXPORTFS_BLOCK_OPS EXT3_FS EXT3_FS_POSIX_ACL EXT3_FS_SECURITY EXTCON EXTCON_INTEL_CHT_WC EXTCON_PTN5150 EXTCON_USBC_TUSB320 F2FS_CHECK_FS F2FS_FAULT_INJECTION F2FS_FS F2FS_FS_COMPRESSION F2FS_FS_LZ4 F2FS_FS_LZ4HC F2FS_FS_LZO F2FS_FS_LZORLE F2FS_FS_POSIX_ACL F2FS_FS_SECURITY F2FS_FS_XATTR F2FS_FS_ZSTD F2FS_STAT_FS FANOTIFY FANOTIFY_ACCESS_PERMISSIONS FB FB_CFB_COPYAREA FB_CFB_FILLRECT FB_CFB_IMAGEBLIT FB_CORE FB_DEFERRED_IO FB_DEVICE FB_IOMEM_FOPS FB_IOMEM_HELPERS FB_NOTIFY FB_SYSMEM_FOPS FB_SYSMEM_HELPERS FB_SYSMEM_HELPERS_DEFERRED FB_SYS_COPYAREA FB_SYS_FILLRECT FB_SYS_IMAGEBLIT FB_TILEBLITTING FB_VESA FB_VGA16 FB_VIRTUAL FDDI FIREWIRE FIREWIRE_NET FIREWIRE_OHCI FIREWIRE_SBP2 FONT_8x16 FONT_8x8 FONT_SUPPORT FRAMEBUFFER_CONSOLE FRAMEBUFFER_CONSOLE_DETECT_PRIMARY FRAMEBUFFER_CONSOLE_ROTATION FS_DAX FS_DAX_PMD FS_ENCRYPTION FS_ENCRYPTION_ALGS FS_STACK FS_VERITY FS_VERITY_BUILTIN_SIGNATURES FTL FUSE_DAX FUSE_FS FW_LOADER_COMPRESS FW_LOADER_PAGED_BUF FW_LOADER_SYSFS FW_LOADER_USER_HELPER FW_LOADER_USER_HELPER_FALLBACK GACT_PROB GARP GENDWARFKSYMS GENERIC_IRQ_ENTRY GENERIC_PHY GENERIC_SYSCALL GET_FREE_REGION GFS2_FS GFS2_FS_LOCKING_DLM GNSS GNSS_USB GOOGLE_COREBOOT_TABLE GOOGLE_FIRMWARE GOOGLE_MEMCONSOLE GOOGLE_MEMCONSOLE_COREBOOT GOOGLE_VPD GPIOLIB GPIOLIB_IRQCHIP GPIO_ACPI GPIO_DLN2 GPIO_LJCA GPIO_VIPERBOARD GREENASIA_FF GREYBUS GREYBUS_BRIDGED_PHY GREYBUS_ES2 GREYBUS_HID GREYBUS_USB GROUP_SCHED_BANDWIDTH GTP GUEST_PERF_EVENTS GVE HAS_LTO_CLANG HAVE_ARCH_NODE_DEV_GROUP HAVE_ARCH_USERFAULTFD_MINOR HAVE_ARCH_USERFAULTFD_WP HAVE_BOOTMEM_INFO_NODE HAVE_CLK_PREPARE HAVE_KVM_CPU_RELAX_INTERCEPT HAVE_KVM_DIRTY_RING HAVE_KVM_DIRTY_RING_ACQ_REL HAVE_KVM_DIRTY_RING_TSO HAVE_KVM_IRQCHIP HAVE_KVM_IRQ_BYPASS HAVE_KVM_IRQ_ROUTING HAVE_KVM_MSI HAVE_KVM_NO_POLL HAVE_KVM_PFNCACHE HAVE_KVM_PM_NOTIFIER HAVE_KVM_READONLY_MEM HAVE_SCHED_AVG_IRQ HDLC HDLC_CISCO HDLC_FR HDLC_PPP HDLC_RAW HDLC_RAW_ETH HDLC_X25 HDMI HFSPLUS_FS HFS_FS HID_ACCUTOUCH HID_ACRUX HID_ACRUX_FF HID_ALPS HID_APPLEIR HID_ASUS HID_AUREAL HID_BATTERY_STRENGTH HID_BETOP_FF HID_BIGBEN_FF HID_CMEDIA HID_CORSAIR HID_COUGAR HID_CP2112 HID_CREATIVE_SB0540 HID_DRAGONRISE HID_ELAN HID_ELECOM HID_ELO HID_EMS_FF HID_EVISION HID_FT260 HID_GEMBIRD HID_GFRM HID_GLORIOUS HID_GOOGLE_STADIA_FF HID_GREENASIA HID_GT683R HID_HOLTEK HID_ICADE HID_JABRA HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_LETSKETCH HID_LOGITECH HID_LOGITECH_DJ HID_LOGITECH_HIDPP HID_MACALLY HID_MAGICMOUSE HID_MALTRON HID_MAYFLASH HID_MCP2200 HID_MCP2221 HID_MEGAWORLD_FF HID_MULTITOUCH HID_NTI HID_ORTEK HID_PENMOUNT HID_PICOLCD HID_PICOLCD_BACKLIGHT HID_PICOLCD_CIR HID_PICOLCD_FB HID_PICOLCD_LCD HID_PICOLCD_LEDS HID_PLANTRONICS HID_PRIMAX HID_PRODIKEYS HID_PXRC HID_RAZER HID_RETRODE HID_RMI HID_ROCCAT HID_SAITEK HID_SEMITEK HID_SENSOR_ACCEL_3D HID_SENSOR_ALS HID_SENSOR_CUSTOM_INTEL_HINGE HID_SENSOR_CUSTOM_SENSOR HID_SENSOR_DEVICE_ROTATION HID_SENSOR_GYRO_3D HID_SENSOR_HUB HID_SENSOR_HUMIDITY HID_SENSOR_IIO_COMMON HID_SENSOR_IIO_TRIGGER HID_SENSOR_INCLINOMETER_3D HID_SENSOR_MAGNETOMETER_3D HID_SENSOR_PRESS HID_SENSOR_PROX HID_SENSOR_TEMP HID_SIGMAMICRO HID_SPEEDLINK HID_STEELSERIES HID_THINGM HID_TIVO HID_TOPRE HID_TWINHAN HID_U2FZERO HID_UCLOGIC HID_UDRAW_PS3 HID_VIEWSONIC HID_VIVALDI HID_VIVALDI_COMMON HID_VRC2 HID_WACOM HID_WALTOP HID_WIIMOTE HID_XIAOMI HID_XINMO HID_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPET_MMAP HPET_MMAP_DEFAULT HPFS_FS I2C_ALGOBIT I2C_CHARDEV I2C_CP2615 I2C_DESIGNWARE_CORE I2C_DESIGNWARE_PLATFORM I2C_DIOLAN_U2C I2C_DLN2 I2C_HID_ACPI I2C_HID_CORE I2C_HID_OF I2C_LJCA I2C_MUX I2C_MUX_REG I2C_ROBOTFUZZ_OSIF I2C_SI4713 I2C_SLAVE I2C_SLAVE_EEPROM I2C_TINY_USB I2C_VIPERBOARD IEEE802154 IEEE802154_6LOWPAN IEEE802154_ATUSB IEEE802154_DRIVERS IEEE802154_HWSIM IEEE802154_NL802154_EXPERIMENTAL IEEE802154_SOCKET IFB IIO IIO_BUFFER IIO_KFIFO_BUF IIO_TRIGGER IIO_TRIGGERED_BUFFER IKCONFIG IKCONFIG_PROC IMA IMA_APPRAISE IMA_APPRAISE_MODSIG IMA_DEFAULT_HASH_SHA256 IMA_LSM_RULES IMA_MEASURE_ASYMMETRIC_KEYS IMA_NG_TEMPLATE IMA_QUEUE_EARLY_BOOT_KEYS IMA_READ_POLICY IMA_WRITE_POLICY INET6_ESPINTCP INET6_ESP_OFFLOAD INET6_IPCOMP INET6_TUNNEL INET6_XFRM_TUNNEL INET_AH INET_DIAG INET_DIAG_DESTROY INET_ESP INET_ESPINTCP INET_ESP_OFFLOAD INET_IPCOMP INET_MPTCP_DIAG INET_RAW_DIAG INET_SCTP_DIAG INET_TCP_DIAG INET_UDP_DIAG INET_XFRM_TUNNEL INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_ADDR_TRANS_CONFIGFS INFINIBAND_IPOIB INFINIBAND_IPOIB_CM INFINIBAND_IPOIB_DEBUG INFINIBAND_ISER INFINIBAND_ON_DEMAND_PAGING INFINIBAND_RTRS INFINIBAND_SRP INFINIBAND_USER_ACCESS INFINIBAND_USER_MAD INFINIBAND_USER_MEM INPUT_ATI_REMOTE2 INPUT_CM109 INPUT_IMS_PCU INPUT_JOYDEV INPUT_KEYSPAN_REMOTE INPUT_LEDS INPUT_MOUSEDEV INPUT_MOUSEDEV_PSAUX INPUT_POWERMATE INPUT_UINPUT INPUT_YEALINK INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_AUDIT INTEGRITY_SIGNATURE INTEGRITY_TRUSTED_KEYRING INTEL_CHTWC_INT33FE INTEL_IDMA64 INTEL_IOATDMA INTEL_IOMMU_DEFAULT_ON INTEL_IOMMU_SVM INTEL_ISHTP_ECLITE INTEL_ISH_FIRMWARE_DOWNLOADER INTEL_ISH_HID INTEL_SOC_PMIC_CHTWC INTERVAL_TREE_SPAN_ITER IOMMUFD IOMMUFD_DRIVER IOMMUFD_DRIVER_CORE IOMMUFD_TEST IO_URING_ZCRX IP6_NF_MATCH_AH IP6_NF_MATCH_EUI64 IP6_NF_MATCH_FRAG IP6_NF_MATCH_HL IP6_NF_MATCH_MH IP6_NF_MATCH_OPTS IP6_NF_MATCH_RPFILTER IP6_NF_MATCH_RT IP6_NF_MATCH_SRH IP6_NF_NAT IP6_NF_RAW IP6_NF_SECURITY IP6_NF_TARGET_HL IP6_NF_TARGET_MASQUERADE IP6_NF_TARGET_NPT IP6_NF_TARGET_SYNPROXY IPV6_FOU IPV6_FOU_TUNNEL IPV6_GRE IPV6_ILA IPV6_MIP6 IPV6_MROUTE IPV6_MROUTE_MULTIPLE_TABLES IPV6_MULTIPLE_TABLES IPV6_OPTIMISTIC_DAD IPV6_PIMSM_V2 IPV6_ROUTER_PREF IPV6_ROUTE_INFO IPV6_RPL_LWTUNNEL IPV6_SEG6_BPF IPV6_SEG6_HMAC IPV6_SEG6_LWTUNNEL IPV6_SIT_6RD IPV6_SUBTREES IPV6_TUNNEL IPV6_VTI IP_SCTP IRQ_TIME_ACCOUNTING LAPB LCD_CLASS_DEVICE LEDS_CLASS_MULTICOLOR MAC802154 MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_VIPERBOARD MODVERSIONS MPTCP MTD NETFILTER_ADVANCED NET_ACT_GACT NET_ACT_MIRRED NET_IPGRE_DEMUX NET_SCH_DEFAULT NFT_COMPAT NFT_FWD_NETDEV NF_TABLES NF_TABLES_NETDEV PAGE_POOL RADIO_ADAPTERS RADIO_SI4713 RAS RC_CORE REGULATOR RFKILL SND SOUND STAGING TRANSPARENT_HUGEPAGE TRUSTED_KEYS TYPEC TYPEC_MUX_PI3USB30532 USB_LJCA USB_ROLES_INTEL_XHCI USB_ROLE_SWITCH VIDEO_DEV VIRTIO_FS WAN ZONE_DEVICE] disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed picked [v6.15 v6.14 v6.13 v6.11 v6.9 v6.7 v6.5 v6.3 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 38 release tags testing release v6.15 testing commit 0ff41df1cb268fc69e703a08a57ee14ae967d0ca gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: b49fde7aa930a23f21811861babbe5dc8d7c929869f6b1bf93f4f5d6f1e1fa5a all runs: OK false negative chance: 0.000 # git bisect start 835244aba90de290b4b0b1fa92b6734f3ee7b3d9 0ff41df1cb268fc69e703a08a57ee14ae967d0ca Bisecting: 11696 revisions left to test after this (roughly 14 steps) [0939bd2fcf337243133b0271335a2838857c319f] Merge tag 'perf-tools-for-v6.16-1-2025-06-03' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools testing commit 0939bd2fcf337243133b0271335a2838857c319f gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 55e621dcdea1119d73a0900ce0dfacee6f66aeda5e11bf1183da20ec571d7a72 all runs: OK false negative chance: 0.000 # git bisect good 0939bd2fcf337243133b0271335a2838857c319f Bisecting: 5782 revisions left to test after this (roughly 13 steps) [09c73f18a24ef56a994870d6c555a40310ca8711] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git testing commit 09c73f18a24ef56a994870d6c555a40310ca8711 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 10be9baab162e044086da26d88e148b31b1f6e4ded3e7827580a0528990a2986 all runs: crashed: WARNING in bdev_getblk representative crash: WARNING in bdev_getblk, types: [WARNING] # git bisect bad 09c73f18a24ef56a994870d6c555a40310ca8711 Bisecting: 2968 revisions left to test after this (roughly 12 steps) [26fd9f7b7ff3794c5de0e6ae538cead53118b4c3] Merge tag 'cxl-fixes-6.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl testing commit 26fd9f7b7ff3794c5de0e6ae538cead53118b4c3 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: dc5d123cbc326b7f35d7e1e93574b3abb0e5348668d796c5f67339336733aa29 all runs: OK false negative chance: 0.000 # git bisect good 26fd9f7b7ff3794c5de0e6ae538cead53118b4c3 Bisecting: 1482 revisions left to test after this (roughly 11 steps) [e172ab78b130422209d5278b1ebeea68a4c35406] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git testing commit e172ab78b130422209d5278b1ebeea68a4c35406 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 7b7a085d4923801ac6394bbe12ae695bf9a3e977acf7e61ae96ba19fa17f0f6b all runs: OK false negative chance: 0.000 # git bisect good e172ab78b130422209d5278b1ebeea68a4c35406 Bisecting: 841 revisions left to test after this (roughly 10 steps) [d4d40573d4e452a2bdf0f6bea51baf6b7a21c2b9] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git testing commit d4d40573d4e452a2bdf0f6bea51baf6b7a21c2b9 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 37be2b8473ee3c588d308dccdf97f7f56fa7b686a3c50784f334e989f8586255 all runs: crashed: WARNING in bdev_getblk representative crash: WARNING in bdev_getblk, types: [WARNING] # git bisect bad d4d40573d4e452a2bdf0f6bea51baf6b7a21c2b9 Bisecting: 310 revisions left to test after this (roughly 8 steps) [471026e8fc941c29161be43b76f35cd6202f3902] Merge branch 'nfsd-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux testing commit 471026e8fc941c29161be43b76f35cd6202f3902 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: abe0aeb8c64e1ea74fd8cd6129a0c31aeb9addc04e403594ff5b3818077106a5 all runs: OK false negative chance: 0.000 # git bisect good 471026e8fc941c29161be43b76f35cd6202f3902 Bisecting: 155 revisions left to test after this (roughly 7 steps) [0d21e5ab2c20b3d59c732e771d7cf3ce321c9d68] Merge branch 'vfs-6.17.super' into vfs.all testing commit 0d21e5ab2c20b3d59c732e771d7cf3ce321c9d68 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: a52de95e1e0a686060d3984e00bf296441c0c56c8b5ae8aac11793beaf76adc3 all runs: crashed: WARNING in bdev_getblk representative crash: WARNING in bdev_getblk, types: [WARNING] # git bisect bad 0d21e5ab2c20b3d59c732e771d7cf3ce321c9d68 Bisecting: 77 revisions left to test after this (roughly 6 steps) [b48c1f2f51cb43181429f388145124e2a6808e6f] Merge branch 'vfs-6.17.fallocate' into vfs.all testing commit b48c1f2f51cb43181429f388145124e2a6808e6f gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: e284547ce59d05426112e6893554ebeb26ba492a7163316b400e4bd88ac85674 all runs: crashed: WARNING in bdev_getblk representative crash: WARNING in bdev_getblk, types: [WARNING] # git bisect bad b48c1f2f51cb43181429f388145124e2a6808e6f Bisecting: 44 revisions left to test after this (roughly 5 steps) [a6ed5691b2428cc578908ee050d5d4908a6e065e] Merge patch series "coredump: further cleanups" testing commit a6ed5691b2428cc578908ee050d5d4908a6e065e gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: dc605311d6d6802dd584b9f75e92440d915bfec1a63670b2eea0e5de9626093b all runs: OK false negative chance: 0.000 # git bisect good a6ed5691b2428cc578908ee050d5d4908a6e065e Bisecting: 21 revisions left to test after this (roughly 5 steps) [099f0899c958c24e5ed6cde0f4cf1f5e02b23a88] Merge branch 'vfs-6.17.file' into vfs.all testing commit 099f0899c958c24e5ed6cde0f4cf1f5e02b23a88 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 7b84fc977dc9672716729c2f809633c826b16775e70fdbca2fac47a78c4d7dd5 all runs: crashed: WARNING in bdev_getblk representative crash: WARNING in bdev_getblk, types: [WARNING] # git bisect bad 099f0899c958c24e5ed6cde0f4cf1f5e02b23a88 Bisecting: 11 revisions left to test after this (roughly 4 steps) [06a705356d7543b4eb2f41bef1ee0d5951700f7a] fs/ecryptfs: replace snprintf with sysfs_emit in show function testing commit 06a705356d7543b4eb2f41bef1ee0d5951700f7a gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 88c9024782540f35a2502bf0a4be47ae27dbade96d8cc5f7763e814222cbe01a all runs: OK false negative chance: 0.000 # git bisect good 06a705356d7543b4eb2f41bef1ee0d5951700f7a Bisecting: 5 revisions left to test after this (roughly 3 steps) [b9913851c127453e3efe0a61f3a23b2d92ed5fbb] Merge branch 'vfs-6.17.misc' into vfs.all testing commit b9913851c127453e3efe0a61f3a23b2d92ed5fbb gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: ef3ad7b3cce96e03cdfef1440a4058a4604880a245c46ef8c5142b1c525ec838 all runs: crashed: WARNING in bdev_getblk representative crash: WARNING in bdev_getblk, types: [WARNING] # git bisect bad b9913851c127453e3efe0a61f3a23b2d92ed5fbb Bisecting: 2 revisions left to test after this (roughly 2 steps) [77eb64439ad52d8afb57bb4dae24a2743c68f50d] fs/buffer: remove the min and max limit checks in __getblk_slow() testing commit 77eb64439ad52d8afb57bb4dae24a2743c68f50d gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 603827f2d717268e6cc9a48348372b96554c06c9d904fc8bea7287dbeb600964 all runs: crashed: WARNING in bdev_getblk representative crash: WARNING in bdev_getblk, types: [WARNING] # git bisect bad 77eb64439ad52d8afb57bb4dae24a2743c68f50d Bisecting: 0 revisions left to test after this (roughly 1 step) [04a2c4b4511d186b0fce685da21085a5d4acd370] fs: Prevent file descriptor table allocations exceeding INT_MAX testing commit 04a2c4b4511d186b0fce685da21085a5d4acd370 gcc compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 kernel signature: 363b0ab90c78f3fca3fa0688f369088ff8825eb52c74d74335a4cfdabf28b095 all runs: OK false negative chance: 0.000 # git bisect good 04a2c4b4511d186b0fce685da21085a5d4acd370 77eb64439ad52d8afb57bb4dae24a2743c68f50d is the first bad commit commit 77eb64439ad52d8afb57bb4dae24a2743c68f50d Author: Pankaj Raghav Date: Thu Jun 26 13:32:23 2025 +0200 fs/buffer: remove the min and max limit checks in __getblk_slow() All filesystems will already check the max and min value of their block size during their initialization. __getblk_slow() is a very low-level function to have these checks. Remove them and only check for logical block size alignment. As this check with logical block size alignment might never trigger, add WARN_ON_ONCE() to the check. As WARN_ON_ONCE() will already print the stack, remove the call to dump_stack(). Suggested-by: Matthew Wilcox Reviewed-by: Jan Kara Signed-off-by: Pankaj Raghav Link: https://lore.kernel.org/20250626113223.181399-1-p.raghav@samsung.com Reviewed-by: Baokun Li Signed-off-by: Christian Brauner fs/buffer.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) accumulated error probability: 0.00 culprit signature: 603827f2d717268e6cc9a48348372b96554c06c9d904fc8bea7287dbeb600964 parent signature: 363b0ab90c78f3fca3fa0688f369088ff8825eb52c74d74335a4cfdabf28b095 revisions tested: 22, total time: 9h56m36.028486196s (build: 5h19m37.28309771s, test: 4h5m28.907733394s) first bad commit: 77eb64439ad52d8afb57bb4dae24a2743c68f50d fs/buffer: remove the min and max limit checks in __getblk_slow() recipients (to): ["brauner@kernel.org" "jack@suse.cz" "libaokun1@huawei.com" "p.raghav@samsung.com"] recipients (cc): [] crash: WARNING in bdev_getblk ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5073 at fs/buffer.c:1125 __getblk_slow fs/buffer.c:1125 [inline] WARNING: CPU: 1 PID: 5073 at fs/buffer.c:1125 bdev_getblk+0x218/0x270 fs/buffer.c:1461 Modules linked in: CPU: 1 UID: 0 PID: 5073 Comm: syz.0.74 Not tainted 6.16.0-rc1-syzkaller #0 PREEMPT(undef) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__getblk_slow fs/buffer.c:1125 [inline] RIP: 0010:bdev_getblk+0x218/0x270 fs/buffer.c:1461 Code: 11 72 3e 83 48 89 ea 4c 89 f9 e8 73 5b bf ff 45 31 e4 4c 89 e0 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d e9 5a 2b 42 01 cc 90 <0f> 0b 90 49 8b 47 18 8b 90 a0 01 00 00 48 c7 c7 20 9e 36 83 44 89 RSP: 0018:ffffc90002527ba8 EFLAGS: 00010206 RAX: 0000000000007fff RBX: 0000000000002800 RCX: ffe582981efb3600 RDX: 0000000000000000 RSI: ffffffff8353dd60 RDI: 0000000000000000 RBP: 0000000000000008 R08: 0000000000000402 R09: 0000000000000002 R10: 0000000000000001 R11: ffffffff814801d0 R12: 0000000000000000 R13: 0000000000000009 R14: 0000000000000400 R15: ffff8881104c0b00 FS: 00007ff1533676c0(0000) GS:ffff8882b3546000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055558d8c64a8 CR3: 0000000178856000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_sb_breadahead_unmovable+0x1c/0x90 fs/ext4/super.c:270 __ext4_get_inode_loc+0x386/0x470 fs/ext4/inode.c:4879 __ext4_get_inode_loc_noinmem fs/ext4/inode.c:4909 [inline] __ext4_iget+0x1cd/0xe40 fs/ext4/inode.c:5168 __ext4_fill_super fs/ext4/super.c:5500 [inline] ext4_fill_super+0x14a7/0x1990 fs/ext4/super.c:5724 get_tree_bdev_flags+0x13c/0x1c0 fs/super.c:1679 vfs_get_tree+0x26/0xf0 fs/super.c:1802 do_new_mount+0x13f/0x390 fs/namespace.c:3885 do_mount fs/namespace.c:4222 [inline] __do_sys_mount fs/namespace.c:4433 [inline] __se_sys_mount+0x147/0x1b0 fs/namespace.c:4410 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xe2/0x2f0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff1525900ca Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff153366e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ff153366ef0 RCX: 00007ff1525900ca RDX: 0000200000000040 RSI: 0000200000000000 RDI: 00007ff153366eb0 RBP: 0000200000000040 R08: 00007ff153366ef0 R09: 000000000000088e R10: 000000000000088e R11: 0000000000000246 R12: 0000200000000000 R13: 00007ff153366eb0 R14: 0000000000000445 R15: 000000000000002c