ci starts bisection 2023-09-04 01:34:06.99600737 +0000 UTC m=+285827.526543202 bisecting cause commit starting from 92901222f83d988617aee37680cb29e1a743b5e4 building syzkaller on 696ea0d2f4fdaa17db929e152edba19bf7666d84 ensuring issue is reproducible on original commit 92901222f83d988617aee37680cb29e1a743b5e4 testing commit 92901222f83d988617aee37680cb29e1a743b5e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ed9ba7e8914285150d5f4de5902e7c12e753bcb1bf7daf57a0d89f724a867078 run #0: infra problem: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0008fa140] Location: Message:Quota 'N2D_CPUS' exceeded. Limit: 300.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #1: infra problem: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0008fa4b0] Location: Message:Quota 'N2D_CPUS' exceeded. Limit: 300.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #2: infra problem: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0008fa730] Location: Message:Quota 'N2D_CPUS' exceeded. Limit: 300.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #3: infra problem: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc00411bea0] Location: Message:Quota 'N2D_CPUS' exceeded. Limit: 300.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #4: infra problem: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0008fa960] Location: Message:Quota 'N2D_CPUS' exceeded. Limit: 300.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #5: infra problem: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc00080bea0] Location: Message:Quota 'N2D_CPUS' exceeded. Limit: 300.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #6: crashed: general protection fault in hci_register_dev run #7: crashed: general protection fault in hci_register_dev run #8: crashed: general protection fault in hci_register_dev run #9: crashed: general protection fault in hci_register_dev run #10: crashed: general protection fault in hci_register_dev run #11: crashed: general protection fault in hci_register_dev run #12: crashed: general protection fault in hci_register_dev run #13: crashed: general protection fault in hci_register_dev run #14: crashed: general protection fault in hci_register_dev run #15: crashed: general protection fault in hci_register_dev run #16: crashed: general protection fault in hci_register_dev run #17: crashed: general protection fault in hci_register_dev run #18: crashed: general protection fault in hci_register_dev run #19: crashed: general protection fault in hci_register_dev representative crash: general protection fault in hci_register_dev, 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 92901222f83d988617aee37680cb29e1a743b5e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 654f11cfcb7a3ae43d05b047dc26a1214a0e5fad7dff6ee135362de1817ace20 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed kconfig minimization: base=3883 full=7690 leaves diff=2019 split chunks (needed=false): <2019> split chunk #0 of len 2019 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 92901222f83d988617aee37680cb29e1a743b5e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b8fd043f242dee33b2d6e443378083216bf3bb23dca9b985504f0b9b5e4eb01f all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 92901222f83d988617aee37680cb29e1a743b5e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2b25340151ef3af65089dbcefd3a2d5a4ae50e8c2b07129b04f9dc078beff61e all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 92901222f83d988617aee37680cb29e1a743b5e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: be47369293ea52f7f7d076a0e41c7964334b8932042d486bfa2da791dd3c0430 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 92901222f83d988617aee37680cb29e1a743b5e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 62c0af5f9770abb3fc99e227dc31bfdbda5634a4f20e43277d384492ae70ba8d all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 92901222f83d988617aee37680cb29e1a743b5e4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 82b43e89e9813e8bce739d798624fbe2ef57cf1b566ec11db8b72f333ffb22f6 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] the chunk can be dropped minimized to 404 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_PLATFORM_PROFILE ADDRESS_MASKING ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_SUPPORTS_CRASH_DUMP ARCH_SUPPORTS_CRASH_HOTPLUG ARCH_SUPPORTS_KEXEC ARCH_SUPPORTS_KEXEC_BZIMAGE_VERIFY_SIG ARCH_SUPPORTS_KEXEC_FILE ARCH_SUPPORTS_KEXEC_JUMP ARCH_SUPPORTS_KEXEC_SIG ARCH_SUPPORTS_KEXEC_SIG_FORCE ARCH_WANT_OPTIMIZE_DAX_VMEMMAP ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP ARCH_WANT_PMD_MKWRITE ASM_MODVERSIONS 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_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG 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 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_DEBUG_FS_ZONED BLK_DEV_BSGLIB BLK_DEV_FD BLK_DEV_INTEGRITY BLK_DEV_INTEGRITY_T10 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_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_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_CMTP BT_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB 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_HIDP BT_HS BT_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MSFTEXT BT_MTK BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL BUFFER_HEAD 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_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_VCAN CAN_VXCAN CAPI_TRACE 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_BQ24190 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 CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MBYTES 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 CRASH_HOTPLUG CRC4 CRC64 CRC64_ROCKSOFT CRC7 CRC8 CRC_ITU_T CRC_T10DIF 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_CFB CRYPTO_CHACHA20 CRYPTO_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32 CRYPTO_CRC32C_INTEL CRYPTO_CRC32_PCLMUL CRYPTO_CRC64_ROCKSOFT CRYPTO_CRCT10DIF CRYPTO_CRCT10DIF_PCLMUL 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_ECB CRYPTO_ECC CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_KDF800108_CTR CRYPTO_KEYWRAP CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_GENERIC CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LRW CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_OFB 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_SM2 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_VMAC CRYPTO_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_XXHASH CUSE CYPRESS_FIRMWARE DAMON DAMON_DBGFS DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_PFIFO_FAST DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DIMLIB DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID DMA_NUMA_CMA 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 ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GPIOLIB HAMRADIO IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ ISDN ISDN_CAPI LIBNVDIMM MAC80211 MAC80211_LEDS MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 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 WIRELESS_EXT WLAN WLAN_VENDOR_ATH X86_X32_ABI ZONE_DEVICE] disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed picked [%!d(string=v6.5) %!d(string=v6.4) %!d(string=v6.3) %!d(string=v6.1) %!d(string=v5.19) %!d(string=v5.17) %!d(string=v5.15) %!d(string=v5.13) %!d(string=v5.10) %!d(string=v5.7) %!d(string=v5.4) %!d(string=v5.1) %!d(string=v4.19)] out of %!d(MISSING) release tags testing release v6.5 testing commit 2dde18cd1d8fac735875f2e4987f11817cc0bc2c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 39e32321b655ea9dbfb9adbd688dea0e054dc281d465e4200cdce3d4593dbe1c all runs: OK false negative chance: 0.000 # git bisect start 92901222f83d988617aee37680cb29e1a743b5e4 2dde18cd1d8fac735875f2e4987f11817cc0bc2c Bisecting: 6053 revisions left to test after this (roughly 13 steps) [53ea7f624fb91074c2f9458832ed74975ee5d64c] Merge tag 'xfs-6.6-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux testing commit 53ea7f624fb91074c2f9458832ed74975ee5d64c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fb97921122ec8eb38f85b456c79f4dd53a18b153d9a28751dac7f891d2e5569c all runs: OK false negative chance: 0.000 # git bisect good 53ea7f624fb91074c2f9458832ed74975ee5d64c Bisecting: 2891 revisions left to test after this (roughly 12 steps) [0e72db77672ff4758a31fb5259c754a7bb229751] Merge tag 'soc-dt-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit 0e72db77672ff4758a31fb5259c754a7bb229751 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c39d5598914bfca39ac860fb8be867188a73cf602550f0414d3c4b2db8ea7669 all runs: OK false negative chance: 0.000 # git bisect good 0e72db77672ff4758a31fb5259c754a7bb229751 Bisecting: 1470 revisions left to test after this (roughly 11 steps) [51e7accbe8ab51476fbe55fbb5616c12fb3a0beb] Merge tag 'usb-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb testing commit 51e7accbe8ab51476fbe55fbb5616c12fb3a0beb gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aaa42d48f503bbc723f043e9856f66c260db56b37086fbfc58544aa4f0776a94 all runs: OK false negative chance: 0.000 # git bisect good 51e7accbe8ab51476fbe55fbb5616c12fb3a0beb Bisecting: 870 revisions left to test after this (roughly 10 steps) [b84acc11b1c9552c9ca3a099b1610a6018619332] Merge tag 'fbdev-for-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev testing commit b84acc11b1c9552c9ca3a099b1610a6018619332 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b9edd24fc9ec8b897abdd0e6b456d9ae3124e754d2461bc771310e50f1c5d4da all runs: OK false negative chance: 0.000 # git bisect good b84acc11b1c9552c9ca3a099b1610a6018619332 Bisecting: 446 revisions left to test after this (roughly 9 steps) [e987af4546ac5de50e514182c1d0ca33843fa665] Merge tag 'percpu-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu testing commit e987af4546ac5de50e514182c1d0ca33843fa665 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b8a4bf74b37451746b7d29af421ea492207b8333fc3a0d8d53d9618e962bd0fa all runs: OK false negative chance: 0.000 # git bisect good e987af4546ac5de50e514182c1d0ca33843fa665 Bisecting: 189 revisions left to test after this (roughly 8 steps) [0468be89b3fa5b9249cee1097f1d50314950a2df] Merge tag 'iommu-updates-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu testing commit 0468be89b3fa5b9249cee1097f1d50314950a2df gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 22cf6ee404ecc678638acfaea4727da0413f99eaa4ef7360fb5be7266007ee37 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] # git bisect bad 0468be89b3fa5b9249cee1097f1d50314950a2df Bisecting: 155 revisions left to test after this (roughly 7 steps) [2fcbb03847d89155d7b33d75ffee3a6bc5c51c97] Merge tag 'x86-urgent-2023-09-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 2fcbb03847d89155d7b33d75ffee3a6bc5c51c97 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2912af0205d496eb0941dd694dd82076d7cd8f60392f4cabc5f4d799af76b88b all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] # git bisect bad 2fcbb03847d89155d7b33d75ffee3a6bc5c51c97 Bisecting: 34 revisions left to test after this (roughly 6 steps) [bd30fe6a7d9b72e73c5ac9109cbc3066dde08034] Merge tag 'wq-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq testing commit bd30fe6a7d9b72e73c5ac9109cbc3066dde08034 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8f576df722925df54e9f31255ddb53526f752455a44c273c1a75854cb3a8634a all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev representative crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev, types: [UNKNOWN] # git bisect bad bd30fe6a7d9b72e73c5ac9109cbc3066dde08034 Bisecting: 32 revisions left to test after this (roughly 5 steps) [7716f383a58314378604eecdd66949ea2cd80ef3] Merge tag 'cgroup-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup testing commit 7716f383a58314378604eecdd66949ea2cd80ef3 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e9d76bed7edef6cbf831a9bf1871086aaf30c9ed53c7d61c44d35f406ca0ca15 all runs: OK false negative chance: 0.000 # git bisect good 7716f383a58314378604eecdd66949ea2cd80ef3 Bisecting: 16 revisions left to test after this (roughly 4 steps) [fef59c9cab6ac5592da54f6c2b1195418f14e4d0] workqueue: Rename NUMA related names to use pod instead testing commit fef59c9cab6ac5592da54f6c2b1195418f14e4d0 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 46a90087e817b6535c6d3f7259bfbe529ec1f28c5cda61ab53f78a0e0462a11f all runs: OK false negative chance: 0.000 # git bisect good fef59c9cab6ac5592da54f6c2b1195418f14e4d0 Bisecting: 8 revisions left to test after this (roughly 3 steps) [63c5484e74952f60f5810256bd69814d167b8d22] workqueue: Add multiple affinity scopes and interface to select them testing commit 63c5484e74952f60f5810256bd69814d167b8d22 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 639c20924f2097e11c8b012d68db34a13dab35e884f49f3bf9e01d64afe67404 all runs: OK false negative chance: 0.000 # git bisect good 63c5484e74952f60f5810256bd69814d167b8d22 Bisecting: 4 revisions left to test after this (roughly 2 steps) [8639ecebc9b1796d7074751a350462f5e1c61cd4] workqueue: Implement non-strict affinity scope for unbound workqueues testing commit 8639ecebc9b1796d7074751a350462f5e1c61cd4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f38c3a2bdf66ecc1c72f40d81a32047ff236168f3850cb8393f736785d308bd6 all runs: OK false negative chance: 0.000 # git bisect good 8639ecebc9b1796d7074751a350462f5e1c61cd4 Bisecting: 2 revisions left to test after this (roughly 1 step) [523a301e66afd1ea9856660bcf3cee3a7c84c6dd] workqueue: Make default affinity_scope dynamically updatable testing commit 523a301e66afd1ea9856660bcf3cee3a7c84c6dd gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3d9cd93348026327e4ca61c38145fbe13a804167801f174b156a2b61bcaeec62 all runs: OK false negative chance: 0.000 # git bisect good 523a301e66afd1ea9856660bcf3cee3a7c84c6dd Bisecting: 0 revisions left to test after this (roughly 1 step) [fe48ba7daefe75bbbefa2426deddc05f2d530d2d] workqueue: fix data race with the pwq->stats[] increment testing commit fe48ba7daefe75bbbefa2426deddc05f2d530d2d gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 23ffba7c6d9a5bf7cffe9b9054bb6c9aa8ac02a38c338b6e0821a282dd358d26 all runs: OK false negative chance: 0.000 # git bisect good fe48ba7daefe75bbbefa2426deddc05f2d530d2d bd30fe6a7d9b72e73c5ac9109cbc3066dde08034 is the first bad commit commit bd30fe6a7d9b72e73c5ac9109cbc3066dde08034 Merge: 7716f383a583 fe48ba7daefe Author: Linus Torvalds Date: Fri Sep 1 16:06:32 2023 -0700 Merge tag 'wq-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq Pull workqueue updates from Tejun Heo: - Unbound workqueues now support more flexible affinity scopes. The default behavior is to soft-affine according to last level cache boundaries. A work item queued from a given LLC is executed by a worker running on the same LLC but the worker may be moved across cache boundaries as the scheduler sees fit. On machines which multiple L3 caches, which are becoming more popular along with chiplet designs, this improves cache locality while not harming work conservation too much. Unbound workqueues are now also a lot more flexible in terms of execution affinity. Differeing levels of affinity scopes are supported and both the default and per-workqueue affinity settings can be modified dynamically. This should help working around amny of sub-optimal behaviors observed recently with asymmetric ARM CPUs. This involved signficant restructuring of workqueue code. Nothing was reported yet but there's some risk of subtle regressions. Should keep an eye out. - Rescuer workers now has more identifiable comms. - workqueue.unbound_cpus added so that CPUs which can be used by workqueue can be constrained early during boot. - Now that all the in-tree users have been flushed out, trigger warning if system-wide workqueues are flushed. * tag 'wq-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (31 commits) workqueue: fix data race with the pwq->stats[] increment workqueue: Rename rescuer kworker workqueue: Make default affinity_scope dynamically updatable workqueue: Add "Affinity Scopes and Performance" section to documentation workqueue: Implement non-strict affinity scope for unbound workqueues workqueue: Add workqueue_attrs->__pod_cpumask workqueue: Factor out need_more_worker() check and worker wake-up workqueue: Factor out work to worker assignment and collision handling workqueue: Add multiple affinity scopes and interface to select them workqueue: Modularize wq_pod_type initialization workqueue: Add tools/workqueue/wq_dump.py which prints out workqueue configuration workqueue: Generalize unbound CPU pods workqueue: Factor out clearing of workqueue-only attrs fields workqueue: Factor out actual cpumask calculation to reduce subtlety in wq_update_pod() workqueue: Initialize unbound CPU pods later in the boot workqueue: Move wq_pod_init() below workqueue_init() workqueue: Rename NUMA related names to use pod instead workqueue: Rename workqueue_attrs->no_numa to ->ordered workqueue: Make unbound workqueues to use per-cpu pool_workqueues workqueue: Call wq_update_unbound_numa() on all CPUs in NUMA node on CPU hotplug ... Documentation/admin-guide/kernel-parameters.txt | 28 +- Documentation/core-api/workqueue.rst | 356 ++++- include/linux/workqueue.h | 115 +- init/main.c | 1 + kernel/workqueue.c | 1618 +++++++++++++---------- kernel/workqueue_internal.h | 2 +- tools/workqueue/wq_dump.py | 177 +++ tools/workqueue/wq_monitor.py | 21 +- 8 files changed, 1513 insertions(+), 805 deletions(-) create mode 100644 tools/workqueue/wq_dump.py accumulated error probability: 0.00 revisions tested: 22, total time: 10h25m30.711365256s (build: 7h3m53.943629147s, test: 2h58m48.782180154s) first bad commit: bd30fe6a7d9b72e73c5ac9109cbc3066dde08034 Merge tag 'wq-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq recipients (to): ["torvalds@linux-foundation.org"] recipients (cc): [] crash: BUG: unable to handle kernel NULL pointer dereference in hci_register_dev RBP: 00007fc9ace2c120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 0000000000000006 R14: 00007fc9ac19bf80 R15: 00007ffd2ee9ce28 BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10ab4a067 P4D 10ab4a067 PUD 1087b4067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 2320 Comm: syz-executor.0 Not tainted 6.5.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 RIP: 0010:strchr+0x4/0x30 lib/string.c:329 Code: c0 eb 0d 84 c9 74 18 48 83 c0 01 48 39 d0 74 0f 0f b6 0c 07 3a 0c 06 74 ea 19 c0 83 c8 01 c3 31 c0 c3 0f 1f 40 00 f3 0f 1e fa <0f> b6 07 89 f2 40 38 f0 75 0e eb 13 0f b6 47 01 48 83 c7 01 38 d0 RSP: 0018:ffffc90002373cf0 EFLAGS: 00010246 RAX: ffffc90002373d58 RBX: 0000000000000000 RCX: ffffc90002373cec RDX: ffffc90002373d38 RSI: 0000000000000025 RDI: 0000000000000000 RBP: ffffc90002373d38 R08: 00000000000000f1 R09: ffff8881086f40b8 R10: 0000000000000000 R11: 0000000000000002 R12: 0000000000000cc0 R13: ffff888106327900 R14: ffff88810872f800 R15: 0000000000000000 FS: 00007fc9ace2c6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000101b71000 CR4: 0000000000350ef0 Call Trace: kvasprintf_const+0x1e/0xa0 lib/kasprintf.c:45 kobject_set_name_vargs+0x20/0x90 lib/kobject.c:272 kobject_add_varg lib/kobject.c:366 [inline] kobject_add+0x84/0x100 lib/kobject.c:424 device_add+0xe4/0x8e0 drivers/base/core.c:3560 hci_register_dev+0x135/0x3c0 net/bluetooth/hci_core.c:2644 hci_uart_register_dev drivers/bluetooth/hci_ldisc.c:688 [inline] hci_uart_set_proto drivers/bluetooth/hci_ldisc.c:712 [inline] hci_uart_tty_ioctl+0x1c2/0x300 drivers/bluetooth/hci_ldisc.c:765 tty_ioctl+0x2b2/0x890 drivers/tty/tty_io.c:2785 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __x64_sys_ioctl+0x8b/0xc0 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc9ac07cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc9ace2c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fc9ac19bf80 RCX: 00007fc9ac07cae9 RDX: 0000000000000000 RSI: 00000000400455c8 RDI: 0000000000000003 RBP: 00007fc9ace2c120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 0000000000000006 R14: 00007fc9ac19bf80 R15: 00007ffd2ee9ce28 Modules linked in: CR2: 0000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:strchr+0x4/0x30 lib/string.c:329 Code: c0 eb 0d 84 c9 74 18 48 83 c0 01 48 39 d0 74 0f 0f b6 0c 07 3a 0c 06 74 ea 19 c0 83 c8 01 c3 31 c0 c3 0f 1f 40 00 f3 0f 1e fa <0f> b6 07 89 f2 40 38 f0 75 0e eb 13 0f b6 47 01 48 83 c7 01 38 d0 RSP: 0018:ffffc90002373cf0 EFLAGS: 00010246 RAX: ffffc90002373d58 RBX: 0000000000000000 RCX: ffffc90002373cec RDX: ffffc90002373d38 RSI: 0000000000000025 RDI: 0000000000000000 RBP: ffffc90002373d38 R08: 00000000000000f1 R09: ffff8881086f40b8 R10: 0000000000000000 R11: 0000000000000002 R12: 0000000000000cc0 R13: ffff888106327900 R14: ffff88810872f800 R15: 0000000000000000 FS: 00007fc9ace2c6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000101b71000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: c0 eb 0d shr $0xd,%bl 3: 84 c9 test %cl,%cl 5: 74 18 je 0x1f 7: 48 83 c0 01 add $0x1,%rax b: 48 39 d0 cmp %rdx,%rax e: 74 0f je 0x1f 10: 0f b6 0c 07 movzbl (%rdi,%rax,1),%ecx 14: 3a 0c 06 cmp (%rsi,%rax,1),%cl 17: 74 ea je 0x3 19: 19 c0 sbb %eax,%eax 1b: 83 c8 01 or $0x1,%eax 1e: c3 ret 1f: 31 c0 xor %eax,%eax 21: c3 ret 22: 0f 1f 40 00 nopl 0x0(%rax) 26: f3 0f 1e fa endbr64 * 2a: 0f b6 07 movzbl (%rdi),%eax <-- trapping instruction 2d: 89 f2 mov %esi,%edx 2f: 40 38 f0 cmp %sil,%al 32: 75 0e jne 0x42 34: eb 13 jmp 0x49 36: 0f b6 47 01 movzbl 0x1(%rdi),%eax 3a: 48 83 c7 01 add $0x1,%rdi 3e: 38 d0 cmp %dl,%al