ci starts bisection 2026-09-25 17:54:39.70529879 +0000 UTC m=+52831.906102379
bisecting cause commit starting from 12fec40907fafe5262216e477e7b6ae74e40ab58
building syzkaller on e12281bdb1bf7cffd538215163f961a34f2e5494
ensuring issue is reproducible on original commit 12fec40907fafe5262216e477e7b6ae74e40ab58

testing commit 12fec40907fafe5262216e477e7b6ae74e40ab58 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 96f9d60c73b80bd1d98aa0715612483faf079e53ea5bccef13461bb9fd9deb82
run #0: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #1: crashed: INFO: task hung in __bio_queue_enter
run #2: crashed: INFO: task hung in __bio_queue_enter
run #3: crashed: INFO: task hung in __bio_queue_enter
run #4: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #5: crashed: INFO: task hung in __bio_queue_enter
run #6: crashed: INFO: task hung in blkdev_flush_mapping
run #7: crashed: INFO: task hung in blkdev_flush_mapping
run #8: crashed: INFO: task hung in blkdev_flush_mapping
run #9: crashed: INFO: task hung in blkdev_flush_mapping
run #10: crashed: INFO: task hung in blkdev_flush_mapping
run #11: crashed: INFO: task hung in blkdev_flush_mapping
run #12: crashed: INFO: task hung in blkdev_flush_mapping
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
representative crash: INFO: task hung in queue_limits_commit_update_frozen, types: [HANG]
check whether we can drop unnecessary instrumentation
disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed
testing commit 12fec40907fafe5262216e477e7b6ae74e40ab58 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 4f750cdadab661e352901b83dd2319112f8515defd8945d12c2ffdfe2d2ff031
run #0: infra problem: create instance operation failed: &{Code:INTERNAL_ERROR ErrorDetails:[] Location: Message:Internal error. Please try again or contact Google Support. (Code: '4760618702653040425') ForceSendFields:[] NullFields:[]}.
run #1: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #2: crashed: INFO: task hung in blkdev_flush_mapping
run #3: crashed: INFO: task hung in blkdev_flush_mapping
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
representative crash: INFO: task hung in queue_limits_commit_update_frozen, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
kconfig minimization: base=4175 full=8663 leaves diff=2142
split chunks (needed=false): <2142>
split chunk #0 of len 2142 into 5 parts
testing without sub-chunk 1/5
disabling configs for [kasan locking atomic_sleep memleak ubsan bug_or_warning], they are not needed
testing commit 12fec40907fafe5262216e477e7b6ae74e40ab58 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: e30df3e7a9665602c35e7159b404574dcaaf1f303dbb85b40f3cdb49976801dc
all runs: OK
false negative chance: 0.000
testing without sub-chunk 2/5
disabling configs for [bug_or_warning kasan locking atomic_sleep memleak ubsan], they are not needed
testing commit 12fec40907fafe5262216e477e7b6ae74e40ab58 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 3d1e07e59691aab1209e322f1120e3e39e75f9258b922d25199f68d03229f36b
run #0: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #1: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #2: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #3: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #4: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #5: crashed: INFO: task hung in blkdev_flush_mapping
run #6: crashed: INFO: task hung in blkdev_flush_mapping
run #7: crashed: INFO: task hung in blkdev_flush_mapping
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: INFO: task hung in queue_limits_commit_update_frozen, types: [HANG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [bug_or_warning kasan locking atomic_sleep memleak ubsan], they are not needed
testing commit 12fec40907fafe5262216e477e7b6ae74e40ab58 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: cba7779577697dea10bec51a00db787c6c6c2d773188a1ee8ecfe44a19900ec3
run #0: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #1: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #2: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #3: crashed: INFO: task hung in __bio_queue_enter
run #4: crashed: INFO: task hung in blkdev_flush_mapping
run #5: crashed: INFO: task hung in blkdev_flush_mapping
run #6: crashed: INFO: task hung in blkdev_flush_mapping
run #7: crashed: INFO: task hung in blkdev_flush_mapping
run #8: crashed: INFO: task hung in blkdev_flush_mapping
run #9: crashed: INFO: task hung in blkdev_flush_mapping
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: INFO: task hung in queue_limits_commit_update_frozen, types: [HANG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit 12fec40907fafe5262216e477e7b6ae74e40ab58 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 977db18aa7e6da28d56eb794e68996f58e3e228908d5d4c9ba0f58b5bf04e84a
run #0: crashed: INFO: task hung in __bio_queue_enter
run #1: crashed: INFO: task hung in __bio_queue_enter
run #2: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #3: crashed: INFO: task hung in blkdev_flush_mapping
run #4: crashed: INFO: task hung in blkdev_flush_mapping
run #5: crashed: INFO: task hung in blkdev_flush_mapping
run #6: crashed: INFO: task hung in blkdev_flush_mapping
run #7: crashed: INFO: task hung in blkdev_flush_mapping
run #8: crashed: INFO: task hung in blkdev_flush_mapping
run #9: crashed: INFO: task hung in blkdev_flush_mapping
run #10: crashed: INFO: task hung in blkdev_flush_mapping
run #11: crashed: INFO: task hung in blkdev_flush_mapping
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: INFO: task hung in __bio_queue_enter, types: [HANG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit 12fec40907fafe5262216e477e7b6ae74e40ab58 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 3c272caaab391b5ae53603c8f78c530ca46e14a5a91924e91d0e8f0a2750af03
run #0: crashed: INFO: task hung in __bio_queue_enter
run #1: crashed: INFO: task hung in __bio_queue_enter
run #2: crashed: INFO: task hung in blkdev_flush_mapping
run #3: crashed: INFO: task hung in blkdev_flush_mapping
run #4: crashed: INFO: task hung in blkdev_flush_mapping
run #5: crashed: INFO: task hung in blkdev_flush_mapping
run #6: crashed: INFO: task hung in blkdev_flush_mapping
run #7: crashed: INFO: task hung in blkdev_flush_mapping
run #8: crashed: INFO: task hung in blkdev_flush_mapping
run #9: crashed: INFO: task hung in blkdev_flush_mapping
run #10: crashed: INFO: task hung in blkdev_flush_mapping
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: INFO: task hung in __bio_queue_enter, types: [HANG]
the chunk can be dropped
minimized to 429 configs; suspects: [6LOWPAN 6LOWPAN_GHC_EXT_HDR_DEST 6LOWPAN_GHC_EXT_HDR_FRAG 6LOWPAN_GHC_EXT_HDR_HOP 6LOWPAN_GHC_EXT_HDR_ROUTE 6LOWPAN_GHC_ICMPV6 6LOWPAN_GHC_UDP 6LOWPAN_NHC 6LOWPAN_NHC_DEST 6LOWPAN_NHC_FRAGMENT 6LOWPAN_NHC_HOP 6LOWPAN_NHC_IPV6 6LOWPAN_NHC_MOBILITY 6LOWPAN_NHC_ROUTING 6LOWPAN_NHC_UDP 842_COMPRESS 842_DECOMPRESS 9P_FSCACHE 9P_FS_POSIX_ACL 9P_FS_SECURITY ACORN_PARTITION ACORN_PARTITION_ADFS ACORN_PARTITION_CUMANA ACORN_PARTITION_EESOX ACORN_PARTITION_ICS ACORN_PARTITION_POWERTEC ACORN_PARTITION_RISCIX ACPI_NFIT ACPI_NHLT ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMD_SFH_HID AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS APPLE_MFI_FASTCHARGE AR5523 ARCH_HAS_DELAY_TIMER ARCH_HAS_PMD_SOFTLEAVES ARCH_HAS_USER_SHADOW_STACK ARCH_SUPPORTS_HUGE_PFNMAP ARCH_SUPPORTS_PMD_PFNMAP ARCH_SUPPORTS_PUD_PFNMAP ARCH_WANT_PMD_MKWRITE ASM_MODVERSIONS ASUS_TF103C_DOCK ASYNC_CORE ASYNC_MEMCPY ASYNC_PQ ASYNC_RAID6_RECOV ASYNC_TX_DMA ASYNC_XOR ATARI_PARTITION ATA_GENERIC ATA_OVER_ETH ATH10K ATH10K_CE ATH10K_LEDS ATH10K_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG ATH9K_COMMON_SPECTRAL ATH9K_DEBUGFS ATH9K_DYNACK ATH9K_HTC ATH9K_HTC_DEBUGFS ATH9K_HW ATH9K_PCI ATH9K_PCOEM ATH9K_RFKILL ATH_COMMON ATM ATM_BR2684 ATM_DRIVERS AX88796B_PHY BALLOON BAREUDP BATMAN_ADV BATMAN_ADV_BATMAN_V BATMAN_ADV_BLA BATMAN_ADV_DAT BATMAN_ADV_MCAST BCACHE BCMA BCMA_HOST_PCI_POSSIBLE BEFS_FS BFQ_CGROUP_DEBUG BFQ_GROUP_IOSCHED BFS_FS BIG_KEYS BLKDEV_UBLK_LEGACY_OPCODES BLK_CGROUP_PUNT_BIO BLK_CGROUP_RWSTAT BLK_DEV_BSGLIB BLK_DEV_INTEGRITY BLK_DEV_NBD BLK_DEV_NULL_BLK BLK_DEV_NULL_BLK_FAULT_INJECTION BLK_DEV_NVME BLK_DEV_PMEM BLK_DEV_RAM BLK_DEV_RNBD BLK_DEV_RNBD_CLIENT BLK_DEV_THROTTLING BLK_DEV_UBLK BLK_DEV_ZONED BLK_ICQ BLK_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_WBT BLK_WBT_MQ BONDING BOOT_VESA_SUPPORT BPF_EVENTS BPF_JIT BPF_JIT_ALWAYS_ON BPF_JIT_DEFAULT_ON BPF_LSM BPF_PRELOAD BPF_PRELOAD_UMD BPF_SYSCALL BRIDGE BRIDGE_CFM BRIDGE_EBT_802_3 BRIDGE_EBT_AMONG BRIDGE_EBT_ARP BRIDGE_EBT_ARPREPLY BRIDGE_EBT_BROUTE BRIDGE_EBT_DNAT BRIDGE_EBT_IP BRIDGE_EBT_IP6 BRIDGE_EBT_LIMIT BRIDGE_EBT_LOG BRIDGE_EBT_MARK BRIDGE_EBT_MARK_T BRIDGE_EBT_NFLOG BRIDGE_EBT_PKTTYPE BRIDGE_EBT_REDIRECT BRIDGE_EBT_SNAT BRIDGE_EBT_STP BRIDGE_EBT_T_FILTER BRIDGE_EBT_T_NAT BRIDGE_EBT_VLAN BRIDGE_IGMP_SNOOPING BRIDGE_MRP BRIDGE_NF_EBTABLES BRIDGE_NF_EBTABLES_LEGACY BRIDGE_VLAN_FILTERING BSD_DISKLABEL BSD_PROCESS_ACCT_V3 BT BTRFS_ASSERT BTRFS_FS BTRFS_FS_POSIX_ACL BTT BT_6LOWPAN BT_ATH3K BT_BCM BT_BNEP BT_BNEP_MC_FILTER BT_BNEP_PROTO_FILTER BT_BREDR BT_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB BT_HCIBTUSB_AUTOSUSPEND BT_HCIBTUSB_BCM BT_HCIBTUSB_MTK BT_HCIBTUSB_POLL_SYNC BT_HCIBTUSB_RTL BT_HCIUART BT_HCIUART_3WIRE BT_HCIUART_AG6XX BT_HCIUART_BCSP BT_HCIUART_H4 BT_HCIUART_LL BT_HCIUART_MRVL BT_HCIUART_QCA BT_HCIUART_SERDEV BT_HCIVHCI BT_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MRVL BT_MRVL_SDIO BT_MSFTEXT BT_MTK BT_MTKSDIO BT_MTKUART BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL CACHEFILES CAN CAN_8DEV_USB CAN_BCM CAN_CALC_BITTIMING CAN_DEV CAN_EMS_USB CAN_ESD_USB CAN_ETAS_ES58X CAN_F81604 CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_NETLINK CAN_PEAK_USB CAN_RAW CAN_RX_OFFLOAD CAN_SLCAN CAN_UCAN CAN_VCAN CAN_VXCAN CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CEC_CORE CEPH_FS CEPH_FSCACHE CEPH_FS_POSIX_ACL CEPH_LIB CEPH_LIB_USE_DNS_RESOLVER CFG80211 CFG80211_CRDA_SUPPORT CFG80211_DEBUGFS CFG80211_DEFAULT_PS CFG80211_REQUIRE_SIGNED_REGDB CFG80211_USE_KERNEL_REGDB_KEYS CFG80211_WEXT CFS_BANDWIDTH CHARGER_ISP1704 CHR_DEV_ST CIFS CIFS_ALLOW_INSECURE_LEGACY CIFS_DEBUG CIFS_DFS_UPCALL CIFS_FSCACHE CIFS_POSIX CIFS_SMB_DIRECT CIFS_SWN_UPCALL CIFS_UPCALL CIFS_XATTR CLOSURES CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MAX CMDLINE_PARTITION COMEDI COMEDI_8254 COMEDI_8255 COMEDI_8255_PCI COMEDI_8255_SA COMEDI_ADL_PCI9118 COMEDI_ADQ12B COMEDI_AIO_AIO12_8 COMEDI_AIO_IIRO_16 COMEDI_AMPLC_DIO200 COMEDI_AMPLC_DIO200_ISA COMEDI_AMPLC_PC236 COMEDI_AMPLC_PC236_ISA COMEDI_AMPLC_PC263_ISA COMEDI_BOND COMEDI_C6XDIGIO COMEDI_DAC02 COMEDI_DAS08 COMEDI_DAS08_ISA COMEDI_DAS16M1 COMEDI_DAS1800 COMEDI_DAS6402 COMEDI_DAS800 COMEDI_DMM32AT COMEDI_DT2801 COMEDI_DT2811 COMEDI_DT2814 COMEDI_DT2815 COMEDI_DT2817 COMEDI_DT282X COMEDI_DT9812 COMEDI_FL512 COMEDI_ISADMA COMEDI_ISA_DRIVERS COMEDI_KCOMEDILIB COMEDI_MISC_DRIVERS COMEDI_MPC624 COMEDI_MULTIQ3 COMEDI_NI_ATMIO16D COMEDI_NI_AT_A2150 COMEDI_NI_AT_AO COMEDI_NI_DAQ_700_CS COMEDI_NI_LABPC COMEDI_NI_LABPC_CS COMEDI_NI_LABPC_ISA COMEDI_NI_LABPC_ISADMA COMEDI_NI_LABPC_PCI COMEDI_NI_USB6501 COMEDI_PARPORT COMEDI_PCI_DRIVERS COMEDI_PCL711 COMEDI_PCL724 COMEDI_PCL726 COMEDI_PCL730 COMEDI_PCL812 COMEDI_PCL816 COMEDI_PCL818 COMEDI_PCM3724 COMEDI_PCMAD COMEDI_PCMCIA_DRIVERS COMEDI_PCMDA12 COMEDI_PCMMIO COMEDI_PCMUIO COMEDI_RTI800 COMEDI_RTI802 COMEDI_S526 COMEDI_TEST COMEDI_USBDUX COMEDI_USBDUXFAST COMEDI_USBDUXSIGMA COMEDI_USB_DRIVERS COMEDI_VMK80XX COMPAT_NETLINK_MESSAGES COUNTER CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRC64 CRC64_ARCH CRC8 CRC_CCITT CRC_ITU_T CRC_T10DIF CRC_T10DIF_ARCH CRYPTO_842 CRYPTO_ACOMP CRYPTO_ADIANTUM CRYPTO_AEGIS128 CRYPTO_AEGIS128_AESNI_SSE2 CRYPTO_AES_NI_INTEL CRYPTO_ANUBIS CRYPTO_ARC4 CRYPTO_ARIA CRYPTO_ARIA_AESNI_AVX_X86_64 CRYPTO_BLOWFISH CRYPTO_BLOWFISH_COMMON CRYPTO_BLOWFISH_X86_64 CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 CRYPTO_CAMELLIA_AESNI_AVX_X86_64 CRYPTO_CAMELLIA_X86_64 CRYPTO_CAST5 CRYPTO_CAST5_AVX_X86_64 CRYPTO_CAST6 CRYPTO_CAST6_AVX_X86_64 CRYPTO_CAST_COMMON CRYPTO_CHACHA20 CRYPTO_CHACHA20POLY1305 CRYPTO_DEFLATE CRYPTO_DES CRYPTO_DEV_CCP CRYPTO_DEV_CCP_DD CRYPTO_DEV_PADLOCK CRYPTO_DEV_PADLOCK_AES CRYPTO_DEV_PADLOCK_SHA CRYPTO_DEV_QAT CRYPTO_DEV_QAT_C3XXX CRYPTO_DEV_QAT_C3XXXVF CRYPTO_DEV_QAT_C62X CRYPTO_DEV_QAT_C62XVF CRYPTO_DEV_QAT_DH895xCC CRYPTO_DEV_QAT_DH895xCCVF CRYPTO_DEV_VIRTIO CRYPTO_DH CRYPTO_ECC CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_HCTR2 CRYPTO_KDF800108_CTR CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_KPP2 CRYPTO_LIB_AES_XTS CRYPTO_LIB_ARC4 CRYPTO_LIB_BLAKE2B CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_ARCH CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_ARCH CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_DES CRYPTO_LIB_GF128MUL CRYPTO_LIB_NH CRYPTO_LIB_NH_ARCH CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_ARCH CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LRW CRYPTO_LZ4HC CRYPTO_NULL CRYPTO_PCRYPT CRYPTO_RMD160 CRYPTO_RNG CRYPTO_RNG2 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA3 CRYPTO_SM4 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 CRYPTO_SM4_GENERIC CRYPTO_STREEBOG CRYPTO_TEA CRYPTO_TWOFISH CRYPTO_TWOFISH_AVX_X86_64 CRYPTO_TWOFISH_COMMON CRYPTO_TWOFISH_X86_64 CRYPTO_TWOFISH_X86_64_3WAY CRYPTO_USER CRYPTO_USER_API CRYPTO_USER_API_AEAD CRYPTO_USER_API_ENABLE_OBSOLETE CRYPTO_USER_API_HASH CRYPTO_USER_API_RNG CRYPTO_USER_API_SKCIPHER CRYPTO_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_ZSTD CUSE CYPRESS_FIRMWARE DAMON DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_CODEL DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DEV_DAX_FSDEV DIBS DIBS_LO DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM 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_AUX_HPD_BRIDGE DRM_BOCHS DRM_BRIDGE DRM_BUDDY DRM_CIRRUS_QEMU DRM_CLIENT DRM_CLIENT_DEFAULT_FBDEV DRM_CLIENT_LIB DRM_CLIENT_SELECTION DRM_FBDEV_EMULATION ENCRYPTED_KEYS FSCACHE FS_DAX FUSE_FS GPIOLIB HID_DRAGONRISE IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ ISA_BUS LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MMC MODVERSIONS MTD NETFILTER_XTABLES_LEGACY NET_CLS_U32 NET_SCH_DEFAULT PARTITION_ADVANCED PCCARD PCMCIA RFKILL SERIAL_DEV_BUS TLS TLS_DEVICE TRANSPARENT_HUGEPAGE TRUSTED_KEYS USB_GADGET USB_PHY VLAN_8021Q WANT_COMPAT_NETLINK_MESSAGES WEXT_CORE WIRELESS WLAN WLAN_VENDOR_ATH ZONE_DEVICE]
disabling configs for [bug_or_warning kasan locking atomic_sleep memleak ubsan], they are not needed
picked [v7.2 v7.1 v7.0 v6.18 v6.16 v6.14 v6.12 v6.10 v6.7 v6.4 v6.1 v5.18 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 45 release tags
testing release v7.2
testing commit 8d3ae59288f1e7d58d76558a6ee96d533bc5019f gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 0a06c0e3e726a4a67b16b48990096fa05e85ff26a45dd8da32091a7a0a67e41f
run #0: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #1: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #2: crashed: INFO: task hung in blkdev_flush_mapping
run #3: crashed: INFO: task hung in blkdev_flush_mapping
run #4: crashed: INFO: task hung in blkdev_flush_mapping
run #5: crashed: INFO: task hung in blkdev_flush_mapping
run #6: crashed: INFO: task hung in blkdev_flush_mapping
run #7: crashed: INFO: task hung in blkdev_flush_mapping
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: INFO: task hung in queue_limits_commit_update_frozen, types: [HANG]
testing release v7.1
testing commit 8cd9520d35a6c38db6567e97dd93b1f11f185dc6 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 00f371cfb3bf096013fcaaef2040c24a196d747f847793bd9a4f99712701aaeb
run #0: crashed: INFO: task hung in __bio_queue_enter
run #1: crashed: INFO: task hung in blkdev_flush_mapping
run #2: crashed: INFO: task hung in blkdev_flush_mapping
run #3: crashed: INFO: task hung in blkdev_flush_mapping
run #4: crashed: INFO: task hung in blkdev_flush_mapping
run #5: crashed: INFO: task hung in blkdev_flush_mapping
run #6: crashed: INFO: task hung in blkdev_flush_mapping
run #7: crashed: INFO: task hung in blkdev_flush_mapping
run #8: crashed: INFO: task hung in blkdev_flush_mapping
run #9: crashed: INFO: task hung in blkdev_flush_mapping
run #10: crashed: INFO: task hung in blkdev_flush_mapping
run #11: crashed: INFO: task hung in blkdev_flush_mapping
run #12: crashed: INFO: task hung in blkdev_flush_mapping
run #13: crashed: INFO: task hung in blkdev_flush_mapping
run #14: crashed: INFO: task hung in blkdev_flush_mapping
run #15: crashed: INFO: task hung in blkdev_flush_mapping
run #16: crashed: INFO: task hung in blkdev_flush_mapping
run #17: crashed: INFO: task hung in blkdev_flush_mapping
run #18: crashed: INFO: task hung in blkdev_flush_mapping
run #19: crashed: INFO: task hung in blkdev_flush_mapping
representative crash: INFO: task hung in __bio_queue_enter, types: [HANG]
testing release v7.0
testing commit 028ef9c96e96197026887c0f092424679298aae8 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 5123bcff66051271119e300f7b3fe0a02dc2c2c6c57e7abc91910ded3f4ae8a0
run #0: crashed: INFO: task hung in __bio_queue_enter
run #1: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #2: crashed: INFO: task hung in __bio_queue_enter
run #3: crashed: INFO: task hung in queue_limits_commit_update_frozen
run #4: crashed: INFO: task hung in blkdev_flush_mapping
run #5: crashed: INFO: task hung in blkdev_flush_mapping
run #6: crashed: INFO: task hung in blkdev_flush_mapping
run #7: crashed: INFO: task hung in blkdev_flush_mapping
run #8: crashed: INFO: task hung in blkdev_flush_mapping
run #9: crashed: INFO: task hung in blkdev_flush_mapping
run #10: crashed: INFO: task hung in blkdev_flush_mapping
run #11: crashed: INFO: task hung in blkdev_flush_mapping
run #12: crashed: INFO: task hung in blkdev_flush_mapping
run #13: crashed: INFO: task hung in blkdev_flush_mapping
run #14: crashed: INFO: task hung in blkdev_flush_mapping
run #15: crashed: INFO: task hung in blkdev_flush_mapping
run #16: crashed: INFO: task hung in blkdev_flush_mapping
run #17: crashed: INFO: task hung in blkdev_flush_mapping
run #18: crashed: INFO: task hung in blkdev_flush_mapping
run #19: crashed: INFO: task hung in blkdev_flush_mapping
representative crash: INFO: task hung in __bio_queue_enter, types: [HANG]
testing release v6.18
reproducer is flaky (0.55 repro chance estimate)
revisions tested: 10, total time: 12h14m6.516249561s (build: 9h19m52.911812223s, test: 2h11m33.85766713s)
error: bisection is taking too long (>12h0m0s), aborting