ci starts bisection 2025-04-18 21:31:34.396650585 +0000 UTC m=+87662.989729295 bisecting cause commit starting from fc96b232f8e7c0a6c282f47726b2ff6a5fb341d2 building syzkaller on 2a20f901dbd7922a27b5625a8a442587c8c3df2c ensuring issue is reproducible on original commit fc96b232f8e7c0a6c282f47726b2ff6a5fb341d2 testing commit fc96b232f8e7c0a6c282f47726b2ff6a5fb341d2 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 0aed2701107fb4b2dbaca38d8c15e26646633d646b21b8bdb4a015ad1c7d9cf8 all runs: crashed: INFO: task hung in page_cache_ra_order representative crash: INFO: task hung in page_cache_ra_order, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit fc96b232f8e7c0a6c282f47726b2ff6a5fb341d2 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 37ca4f1a2a3f5b3c0dbb5b33432ffed81c7b4a32e78576a7a517c8735f12c1ae all runs: OK false negative chance: 0.000 kconfig minimization: base=4076 full=8321 leaves diff=2129 split chunks (needed=false): <2129> split chunk #0 of len 2129 into 5 parts testing without sub-chunk 1/5 testing commit fc96b232f8e7c0a6c282f47726b2ff6a5fb341d2 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 9f9ae2689428d3457218a0747073c8e75fc3a1a47d969d73d990cd9b55a0659d all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 testing commit fc96b232f8e7c0a6c282f47726b2ff6a5fb341d2 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: fcbda5ac2de3d43d078a9b7ad5136b29b0de3d0afb64b8dc480030c6e13a2664 all runs: crashed: INFO: task hung in page_cache_ra_order representative crash: INFO: task hung in page_cache_ra_order, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 testing commit fc96b232f8e7c0a6c282f47726b2ff6a5fb341d2 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 3c615231439e0aa13d9d9d6368a92568ffe95742ce381d18226163ec42699d2c all runs: crashed: INFO: task hung in page_cache_ra_order representative crash: INFO: task hung in page_cache_ra_order, types: [HANG] the chunk can be dropped testing without sub-chunk 4/5 testing commit fc96b232f8e7c0a6c282f47726b2ff6a5fb341d2 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: cac008603a753980d480060f05e600f8ac61a06a6ceb986f9ac4a675ed75e202 all runs: crashed: INFO: task hung in page_cache_ra_order representative crash: INFO: task hung in page_cache_ra_order, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 testing commit fc96b232f8e7c0a6c282f47726b2ff6a5fb341d2 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 3d2c7721c33b48e9c57b57b7bc02ae19da3df98a033dc439a10791587611d051 all runs: crashed: INFO: task hung in page_cache_ra_order representative crash: INFO: task hung in page_cache_ra_order, types: [HANG] the chunk can be dropped minimized to 426 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 6PACK 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 ACPI_PLATFORM_PROFILE ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMD_SFH_HID AMIGA_PARTITION ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS APPLE_MFI_FASTCHARGE AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION 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_CLIP ATM_DRIVERS ATM_LANE ATM_MPOA ATM_TCP AUXILIARY_BUS AX25 AX25_DAMA_SLAVE AX88796B_PHY BAREUDP BATMAN_ADV BATMAN_ADV_BATMAN_V BATMAN_ADV_BLA BATMAN_ADV_DAT BATMAN_ADV_MCAST BATMAN_ADV_NC BCACHE BCACHEFS_DEBUG BCACHEFS_ERASURE_CODING BCACHEFS_FS BCACHEFS_POSIX_ACL BCACHEFS_QUOTA BCACHEFS_SIX_OPTIMISTIC_SPIN BCMA BCMA_HOST_PCI_POSSIBLE BEFS_FS BFQ_CGROUP_DEBUG BFQ_GROUP_IOSCHED BFS_FS BIG_KEYS BLK_CGROUP_PUNT_BIO BLK_CGROUP_RWSTAT BLK_DEV_BSGLIB BLK_DEV_INITRD 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_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_STREAM_PARSER BPF_SYSCALL BPQETHER 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 BTRFS_FS_REF_VERIFY 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 CAIF CAIF_DEBUG CAIF_DRIVERS CAIF_NETDEV CAIF_TTY CAIF_USB CAIF_VIRTIO 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 CGROUP_BPF 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_DT9812 COMEDI_NI_USB6501 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_ITU_T CRC_T10DIF CRC_T10DIF_ARCH CRYPTO_842 CRYPTO_ADIANTUM CRYPTO_AEGIS128 CRYPTO_AEGIS128_AESNI_SSE2 CRYPTO_AES_NI_INTEL CRYPTO_AES_TI CRYPTO_ANSI_CPRNG CRYPTO_ANUBIS CRYPTO_ARC4 CRYPTO_ARCH_HAVE_LIB_BLAKE2S CRYPTO_ARCH_HAVE_LIB_CHACHA CRYPTO_ARCH_HAVE_LIB_CURVE25519 CRYPTO_ARCH_HAVE_LIB_POLY1305 CRYPTO_ARIA CRYPTO_ARIA_AESNI_AVX_X86_64 CRYPTO_BLAKE2B CRYPTO_BLAKE2S_X86 CRYPTO_BLOWFISH CRYPTO_BLOWFISH_COMMON CRYPTO_BLOWFISH_X86_64 CRYPTO_CAMELLIA 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_CHACHA20_X86_64 CRYPTO_CRC32C CRYPTO_CRYPTD CRYPTO_CTS CRYPTO_CURVE25519 CRYPTO_CURVE25519_X86 CRYPTO_DEFLATE CRYPTO_DES CRYPTO_DES3_EDE_X86_64 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_DRBG_CTR CRYPTO_DRBG_HASH CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_HKDF CRYPTO_KDF800108_CTR CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_GENERIC CRYPTO_LIB_CHACHA_INTERNAL CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_CURVE25519_INTERNAL CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LIB_POLY1305_INTERNAL CRYPTO_LRW CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_PCBC CRYPTO_PCRYPT CRYPTO_POLY1305 CRYPTO_POLY1305_X86_64 CRYPTO_POLYVAL CRYPTO_POLYVAL_CLMUL_NI CRYPTO_RMD160 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA1_SSSE3 CRYPTO_SHA256_SSSE3 CRYPTO_SHA512_SSSE3 CRYPTO_SIMD CRYPTO_SM3 CRYPTO_SM3_AVX_X86_64 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_XXHASH CRYPTO_ZSTD CUSE CYPRESS_FIRMWARE DAMON DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEBUG_VFS DEFAULT_CODEL DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX 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_HELPER DRM_FBDEV_EMULATION ENCRYPTED_KEYS FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MMC MTD NET_CLS_U32 NET_SCH_DEFAULT PARTITION_ADVANCED 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] picked [v6.14 v6.13 v6.12 v6.10 v6.8 v6.6 v6.4 v6.2 v5.19 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 37 release tags testing release v6.14 testing commit 38fec10eb60d687e30c8c6b5420d86e8149f7557 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 52b454dd61f8849d6815f6b0827025e776aa2369609167bd901bbd2b6b33b482 all runs: crashed: INFO: task hung in page_cache_ra_unbounded representative crash: INFO: task hung in page_cache_ra_unbounded, types: [HANG] testing release v6.13 testing commit ffd294d346d185b70e28b1a28abe367bbfe53c04 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 818f0d0d53fa5c82345f128594a0cf97a49fcf3578763dd4626472bbca12340e all runs: crashed: INFO: task hung in page_cache_ra_unbounded representative crash: INFO: task hung in page_cache_ra_unbounded, types: [HANG] testing release v6.12 testing commit adc218676eef25575469234709c2d87185ca223a gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: f22ba41948795d79c85adc2c6a5661a791ea2cbd17bcc97bcfdc24f7682a4c4d all runs: OK false negative chance: 0.000 # git bisect start ffd294d346d185b70e28b1a28abe367bbfe53c04 adc218676eef25575469234709c2d87185ca223a Bisecting: 6418 revisions left to test after this (roughly 13 steps) [28eb75e178d389d325f1666e422bc13bbbb9804c] Merge tag 'drm-next-2024-11-21' of https://gitlab.freedesktop.org/drm/kernel testing commit 28eb75e178d389d325f1666e422bc13bbbb9804c gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 26ac1f53917d6cc67171baf42584a440fabc3f4fbfa8d81201c442821b1dc52a all runs: crashed: INFO: task hung in page_cache_ra_unbounded representative crash: INFO: task hung in page_cache_ra_unbounded, types: [HANG] # git bisect bad 28eb75e178d389d325f1666e422bc13bbbb9804c Bisecting: 3914 revisions left to test after this (roughly 12 steps) [6e95ef0258ff4ee23ae3b06bf6b00b33dbbd5ef7] Merge tag 'bpf-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next testing commit 6e95ef0258ff4ee23ae3b06bf6b00b33dbbd5ef7 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 690926cd960e7fbbc2b9aed8d380b5712bdd1771e37e65869beb96a88867bcf7 all runs: crashed: INFO: task hung in page_cache_ra_unbounded representative crash: INFO: task hung in page_cache_ra_unbounded, types: [HANG] # git bisect bad 6e95ef0258ff4ee23ae3b06bf6b00b33dbbd5ef7 Bisecting: 1917 revisions left to test after this (roughly 11 steps) [aad3a0d084513e811233ad48bf234fbfcfcd0a14] Merge tag 'ftrace-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace testing commit aad3a0d084513e811233ad48bf234fbfcfcd0a14 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 9566f368e27ddc4dd8c63ff3c542b4355b79ef1fdae430aa8eb92cd69fef53d3 all runs: OK false negative chance: 0.000 # git bisect good aad3a0d084513e811233ad48bf234fbfcfcd0a14 Bisecting: 1088 revisions left to test after this (roughly 10 steps) [79caa6c88ac484111b24488eb9fe1c86a3d18016] Merge tag 'asm-generic-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic testing commit 79caa6c88ac484111b24488eb9fe1c86a3d18016 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 6c1c9fe7e9f586b94ca85a08cdd96e6558a6b3620bd0f1c1fba53714b7437e76 all runs: crashed: INFO: task hung in page_cache_ra_unbounded representative crash: INFO: task hung in page_cache_ra_unbounded, types: [HANG] # git bisect bad 79caa6c88ac484111b24488eb9fe1c86a3d18016 Bisecting: 411 revisions left to test after this (roughly 9 steps) [e6de688e93a93b98db2ba4929af773038a999e9e] Merge tag 'devicetree-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux testing commit e6de688e93a93b98db2ba4929af773038a999e9e gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 120aa24bdcb83a6a9b72355b2008b06b4487ef4cf09c80d4152d079e80ec271c all runs: OK false negative chance: 0.000 # git bisect good e6de688e93a93b98db2ba4929af773038a999e9e Bisecting: 205 revisions left to test after this (roughly 8 steps) [6c9934c5a00ae722a98d1a06ed44b673514407b5] media: venus: fix enc/dec destruction order testing commit 6c9934c5a00ae722a98d1a06ed44b673514407b5 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 35c47ab0ad97d39c90904c463bf24636cb09cbd7724e7f64613c69525d5b6a4a all runs: OK false negative chance: 0.000 # git bisect good 6c9934c5a00ae722a98d1a06ed44b673514407b5 Bisecting: 121 revisions left to test after this (roughly 7 steps) [70e8ef2d6762cecfc868296fa9e0a3848b926efc] Merge tag 'media/v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media testing commit 70e8ef2d6762cecfc868296fa9e0a3848b926efc gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 4585f3bb439a09b03d1b20c03b2d488dc90f562d4523efdd48543bbd7d9adb1b all runs: OK false negative chance: 0.000 # git bisect good 70e8ef2d6762cecfc868296fa9e0a3848b926efc Bisecting: 60 revisions left to test after this (roughly 6 steps) [8560b2775a08bf511576a18922c3bde920e69494] platform/x86/amd/hsmp: Change the error type testing commit 8560b2775a08bf511576a18922c3bde920e69494 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: e93cd641b51d84306bbdd580828bef57715b91880f88012e9519a2b8e712ebbe all runs: OK false negative chance: 0.000 # git bisect good 8560b2775a08bf511576a18922c3bde920e69494 Bisecting: 30 revisions left to test after this (roughly 5 steps) [7e7f65647e5216b667d7d98a74446a80a9adcfc0] Merge tag 'ipe-pr-20241119' of git://git.kernel.org/pub/scm/linux/kernel/git/wufan/ipe testing commit 7e7f65647e5216b667d7d98a74446a80a9adcfc0 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 38198a1b542d12acfe9f060c4767ac9b54ba2cd1c0313b7c949b085d7777ec3a all runs: OK false negative chance: 0.000 # git bisect good 7e7f65647e5216b667d7d98a74446a80a9adcfc0 Bisecting: 15 revisions left to test after this (roughly 4 steps) [0110feaaf6d0610d0089ae4897387df9a963b5f0] arm64: Use new fallback IO memcpy/memset testing commit 0110feaaf6d0610d0089ae4897387df9a963b5f0 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: 09dee633d4fb9c2a62b3dc5244e5076740916bb9b3ac7b2ede993e7bc6562bfe all runs: crashed: INFO: task hung in page_cache_ra_unbounded representative crash: INFO: task hung in page_cache_ra_unbounded, types: [HANG] # git bisect bad 0110feaaf6d0610d0089ae4897387df9a963b5f0 Bisecting: 7 revisions left to test after this (roughly 3 steps) [c5c3238d9b8cee58cd4b08bbbe9347a94a566390] asm-generic: provide generic page_to_phys and phys_to_page implementations testing commit c5c3238d9b8cee58cd4b08bbbe9347a94a566390 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: ef7c42cf102c17d37e44b20eaf0d84e6a55b162cc3e46854e6ce33c9386b2879 all runs: OK false negative chance: 0.000 # git bisect good c5c3238d9b8cee58cd4b08bbbe9347a94a566390 Bisecting: 3 revisions left to test after this (roughly 2 steps) [06508533d51a1dc96c5399e533adfe9ec1076088] ARM: div64: improve __arch_xprod_64() testing commit 06508533d51a1dc96c5399e533adfe9ec1076088 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: b2ec4d2fe5c77e6b27546a90e831e9e4af34ca453b673e5b1117fb4b8d5effe1 run #0: crashed: INFO: task hung in page_cache_ra_unbounded run #1: crashed: INFO: task hung in page_cache_ra_unbounded run #2: crashed: INFO: task hung in page_cache_ra_unbounded run #3: crashed: INFO: task hung in page_cache_ra_unbounded run #4: crashed: INFO: task hung in page_cache_ra_unbounded run #5: crashed: INFO: task hung in page_cache_ra_unbounded run #6: crashed: INFO: task hung in page_cache_ra_unbounded run #7: crashed: INFO: task hung in page_cache_ra_unbounded run #8: crashed: INFO: task hung in page_cache_ra_unbounded run #9: OK representative crash: INFO: task hung in page_cache_ra_unbounded, types: [HANG] # git bisect bad 06508533d51a1dc96c5399e533adfe9ec1076088 Bisecting: 1 revision left to test after this (roughly 1 step) [1dc82675cb79200d5e140520efd7ce88b38ea56d] lib/math/test_div64: add some edge cases relevant to __div64_const32() testing commit 1dc82675cb79200d5e140520efd7ce88b38ea56d gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: ccf466adda006083b3d4fbf3070c62b4fd27937228fb6c84a8ab0aa11722645d all runs: crashed: INFO: task hung in page_cache_ra_unbounded representative crash: INFO: task hung in page_cache_ra_unbounded, types: [HANG] # git bisect bad 1dc82675cb79200d5e140520efd7ce88b38ea56d Bisecting: 0 revisions left to test after this (roughly 0 steps) [3e25d5a49f99b75be2c6cfb165e4f77dc6d739a2] asm-generic: add an optional pfn_valid check to page_to_phys testing commit 3e25d5a49f99b75be2c6cfb165e4f77dc6d739a2 gcc compiler: Debian clang version 15.0.6, Debian LLD 15.0.6 kernel signature: d0de7548b8fa34cfde9600c9ab3ca9e79b9ec9af2a879b1463dde530db3a097c all runs: crashed: INFO: task hung in page_cache_ra_unbounded representative crash: INFO: task hung in page_cache_ra_unbounded, types: [HANG] # git bisect bad 3e25d5a49f99b75be2c6cfb165e4f77dc6d739a2 3e25d5a49f99b75be2c6cfb165e4f77dc6d739a2 is the first bad commit commit 3e25d5a49f99b75be2c6cfb165e4f77dc6d739a2 Author: Christoph Hellwig Date: Wed Oct 23 07:36:37 2024 +0200 asm-generic: add an optional pfn_valid check to page_to_phys page_to_pfn is usually implemented by pointer arithmetics on the memory map, which means that bogus input can lead to even more bogus output. Powerpc had a pfn_valid check on the intermediate pfn in the page_to_phys implementation when CONFIG_DEBUG_VIRTUAL is defined, which seems generally useful, so add that to the generic version. Signed-off-by: Christoph Hellwig Reviewed-by: Thomas Huth Signed-off-by: Arnd Bergmann include/asm-generic/memory_model.h | 10 ++++++++++ 1 file changed, 10 insertions(+) accumulated error probability: 0.00 culprit signature: d0de7548b8fa34cfde9600c9ab3ca9e79b9ec9af2a879b1463dde530db3a097c parent signature: ef7c42cf102c17d37e44b20eaf0d84e6a55b162cc3e46854e6ce33c9386b2879 revisions tested: 24, total time: 9h47m20.225269769s (build: 5h38m23.261912714s, test: 3h42m31.534897841s) first bad commit: 3e25d5a49f99b75be2c6cfb165e4f77dc6d739a2 asm-generic: add an optional pfn_valid check to page_to_phys recipients (to): ["arnd@arndb.de" "hch@lst.de" "thuth@redhat.com"] recipients (cc): [] crash: INFO: task hung in page_cache_ra_unbounded INFO: task syz.2.16:3363 blocked for more than 143 seconds. Not tainted 6.12.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.16 state:D stack:24176 pid:3363 tgid:3362 ppid:2960 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5315 [inline] __schedule+0x1718/0x29a0 kernel/sched/core.c:6675 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0xb1/0x270 kernel/sched/core.c:6767 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824 rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline] __down_read_common kernel/locking/rwsem.c:1248 [inline] __down_read kernel/locking/rwsem.c:1261 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:870 [inline] page_cache_ra_unbounded+0x129/0x700 mm/readahead.c:226 filemap_readahead mm/filemap.c:2519 [inline] filemap_get_pages+0x81a/0x1ef0 mm/filemap.c:2564 filemap_splice_read+0x5d3/0xcd0 mm/filemap.c:2921 do_splice_read fs/splice.c:985 [inline] splice_direct_to_actor+0x3b9/0xae0 fs/splice.c:1089 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x233/0x350 fs/splice.c:1233 do_sendfile+0x4bb/0xc80 fs/read_write.c:1388 __do_sys_sendfile64 fs/read_write.c:1455 [inline] __se_sys_sendfile64+0x143/0x190 fs/read_write.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x210 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7d3d78e169 RSP: 002b:00007f7d3e548038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f7d3d9b5fa0 RCX: 00007f7d3d78e169 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000003 RBP: 00007f7d3d810a68 R08: 0000000000000000 R09: 0000000000000000 R10: 000400000000003f R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f7d3d9b5fa0 R15: 00007ffdcc86e968 Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff87e80f80 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff87e80f80 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff87e80f80 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720 2 locks held by getty/1491: #0: ffff88810cb2c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x20/0x60 drivers/tty/tty_ldisc.c:243 #1: ffffc900000632f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x40a/0x1250 drivers/tty/n_tty.c:2211 1 lock held by syz.2.16/3363: #0: ffff88811154e540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:870 [inline] #0: ffff88811154e540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x129/0x700 mm/readahead.c:226 1 lock held by syz.2.16/3365: #0: ffff88811154e540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock include/linux/fs.h:860 [inline] #0: ffff88811154e540 (mapping.invalidate_lock#2){++++}-{4:4}, at: blkdev_fallocate+0x186/0x380 block/fops.c:808 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x198/0x250 lib/dump_stack.c:120 nmi_cpu_backtrace+0x353/0x390 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x104/0x210 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xb60/0xba0 kernel/hung_task.c:379 kthread+0x2e0/0x380 kernel/kthread.c:389 ret_from_fork+0x32/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 12720 Comm: syz-executor Not tainted 6.12.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:tomoyo_realpath_from_path+0x151/0x4e0 security/tomoyo/realpath.c:257 Code: 24 50 74 08 48 89 df e8 ad 62 d5 fe 4d 89 fd 48 8b 1b 48 85 db 48 8b 0c 24 74 29 48 83 c3 48 48 89 d8 48 c1 e8 03 80 3c 28 00 <74> 0c 48 89 df e8 85 62 d5 fe 48 8b 0c 24 4c 8b 1b 4d 85 db 0f 85 RSP: 0018:ffffc90002ea7510 EFLAGS: 00000246 RAX: 1ffffffff0d2bb89 RBX: ffffffff8695dc48 RCX: ffff88817a236068 RDX: 0000000000001000 RSI: ffffffff86b9b380 RDI: ffffffff86b9b340 RBP: dffffc0000000000 R08: 0000000000000c40 R09: 00000000ffffffff R10: dffffc0000000000 R11: fffffbfff1158ab6 R12: 0000000000000fff R13: ffff888176b84000 R14: 0000000000001000 R15: ffff888176b84000 FS: 0000555584fe0500(0000) GS:ffff8881f5d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1518db5f00 CR3: 0000000162a88000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_check_open_permission+0x24a/0x450 security/tomoyo/file.c:771 security_file_open+0x41/0xd0 security/security.c:3107 do_dentry_open+0x2c1/0xf90 fs/open.c:945 vfs_open+0x36/0x290 fs/open.c:1088 do_open fs/namei.c:3774 [inline] path_openat+0x278f/0x2fc0 fs/namei.c:3933 do_filp_open+0x22b/0x440 fs/namei.c:3960 do_sys_openat2+0xf6/0x180 fs/open.c:1415 do_sys_open fs/open.c:1430 [inline] __do_sys_openat fs/open.c:1446 [inline] __se_sys_openat fs/open.c:1441 [inline] __x64_sys_openat+0x20d/0x260 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x210 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1518d8cad0 Code: 48 89 44 24 20 75 93 44 89 54 24 0c e8 49 94 02 00 44 8b 54 24 0c 89 da 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 38 44 89 c7 89 44 24 0c e8 9c 94 02 00 8b 44 RSP: 002b:00007ffd8e07ad30 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000080001 RCX: 00007f1518d8cad0 RDX: 0000000000080001 RSI: 00007f1518e122a4 RDI: 00000000ffffff9c RBP: 00007f1518e122a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000004 R13: 00007ffd8e07add0 R14: 0000000000039171 R15: 00007ffd8e07b340