ci starts bisection 2023-08-01 05:05:00.404740323 +0000 UTC m=+138590.571857634 bisecting fixing commit since 4bdec23f971b1a5caf7a18ae117e44bdfaf26c93 building syzkaller on fbf0499acc828df26995835e51d83c3a0117e716 ensuring issue is reproducible on original commit 4bdec23f971b1a5caf7a18ae117e44bdfaf26c93 testing commit 4bdec23f971b1a5caf7a18ae117e44bdfaf26c93 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b2fb3b986f3a25964f2cbc8ceb51d95473deb2266f1c4967645902af00d1d37f run #0: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #1: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #2: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #3: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #4: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #5: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #6: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #7: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #8: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #9: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #10: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #11: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #12: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #13: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #14: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #15: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #16: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #17: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #18: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #19: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #20: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #21: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #22: crashed: WARNING in btrfs_space_info_update_bytes_may_use run #23: crashed: WARNING in btrfs_space_info_update_bytes_may_use run #24: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #25: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #26: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #27: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #28: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #29: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #30: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #31: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #32: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #33: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #34: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #35: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #36: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #37: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #38: crashed: WARNING in btrfs_free_reserved_data_space_noquota run #39: crashed: WARNING in btrfs_free_reserved_data_space_noquota representative crash: WARNING in btrfs_free_reserved_data_space_noquota, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 4bdec23f971b1a5caf7a18ae117e44bdfaf26c93 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 75db055c8bb24e1c79db617199feaf461ac216b50ec504acfb7b741353ef9f8d all runs: crashed: WARNING in btrfs_free_reserved_data_space_noquota representative crash: WARNING in btrfs_free_reserved_data_space_noquota, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed kconfig minimization: base=3876 full=7587 leaves diff=1994 split chunks (needed=false): <1994> split chunk #0 of len 1994 into 5 parts testing without sub-chunk 1/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 4bdec23f971b1a5caf7a18ae117e44bdfaf26c93 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 49eddf469f848714e03d14773ea9e0367df44cffd9fd7474b7fa45bd3555439f all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 4bdec23f971b1a5caf7a18ae117e44bdfaf26c93 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e67757e4a6b8d2171355db0c5062c3f4112491dfa93eb53487a8622476133de6 all runs: crashed: WARNING in btrfs_free_reserved_data_space_noquota representative crash: WARNING in btrfs_free_reserved_data_space_noquota, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 4bdec23f971b1a5caf7a18ae117e44bdfaf26c93 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 382bad8ccecfa70d587fa3f90377946a71d99507a422eea9531323cb8501482d all runs: crashed: WARNING in btrfs_free_reserved_data_space_noquota representative crash: WARNING in btrfs_free_reserved_data_space_noquota, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 4bdec23f971b1a5caf7a18ae117e44bdfaf26c93 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a124b4c66d9c22926b90df3ecae29c8e2322b47ce62a001b1cd12d0eaa24b06 all runs: crashed: WARNING in btrfs_free_reserved_data_space_noquota representative crash: WARNING in btrfs_free_reserved_data_space_noquota, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 4bdec23f971b1a5caf7a18ae117e44bdfaf26c93 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8ee07a37535c1ed4e3b0f6d7c8da8388bf8006b977707ac918f8d7874b439f9a all runs: crashed: WARNING in btrfs_free_reserved_data_space_noquota representative crash: WARNING in btrfs_free_reserved_data_space_noquota, types: [WARNING] the chunk can be dropped minimized to 399 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 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_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP 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_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_DEV_ZONED BLK_ICQ BLK_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_MQ_RDMA 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 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_SLCAN CAN_VCAN CAN_VXCAN CAPI_TRACE CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CC_HAS_UBSAN_BOUNDS CC_HAS_ZERO_CALL_USED_REGS 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 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 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 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_BOCHS DRM_BUDDY DRM_CIRRUS_QEMU ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE 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 [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 testing commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 587935f365c813d51103921338689ff290fb1a9b5a535619f46c429afa777432 all runs: OK false negative chance: 0.000 # git bisect start 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 4bdec23f971b1a5caf7a18ae117e44bdfaf26c93 Bisecting: 15291 revisions left to test after this (roughly 14 steps) [46be92e58fa8868fc10854de94f270e1d58ec434] Merge tag 'sound-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit 46be92e58fa8868fc10854de94f270e1d58ec434 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8e20428e0bca4ed3bc5b261670f79797073fc808aa3a2b9b2ba24d4a859baa8e all runs: OK false negative chance: 0.000 # git bisect bad 46be92e58fa8868fc10854de94f270e1d58ec434 Bisecting: 8645 revisions left to test after this (roughly 13 steps) [b68ee1c6131c540a62ecd443be89c406401df091] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi testing commit b68ee1c6131c540a62ecd443be89c406401df091 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3642a13d876a96dfa0757baeb25b2a6fadfa47b9c65e4ade086e73b6e58310f6 all runs: OK false negative chance: 0.000 # git bisect bad b68ee1c6131c540a62ecd443be89c406401df091 Bisecting: 3826 revisions left to test after this (roughly 12 steps) [736b378b29d89c8c3567fa4b2e948be5568aebb8] Merge tag 'slab-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab testing commit 736b378b29d89c8c3567fa4b2e948be5568aebb8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 94ba98b7ac7dae97f22a0caec17a5451ae2d7ec31520b9a5a96143805d2d59ed all runs: OK false negative chance: 0.000 # git bisect bad 736b378b29d89c8c3567fa4b2e948be5568aebb8 Bisecting: 1397 revisions left to test after this (roughly 11 steps) [61d325dcbc05d8fef88110d35ef7776f3ac3f68b] Merge tag 'erofs-for-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs testing commit 61d325dcbc05d8fef88110d35ef7776f3ac3f68b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a40215e09ba383cc95e14379595e0ad306d18914a32deaf58b41e53c3083fa66 all runs: OK false negative chance: 0.000 # git bisect bad 61d325dcbc05d8fef88110d35ef7776f3ac3f68b Bisecting: 697 revisions left to test after this (roughly 10 steps) [829cca4d1783088e43bace57a555044cc937c554] Merge tag 'net-6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 829cca4d1783088e43bace57a555044cc937c554 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b900908c231cbafcaed72a731e5d6e0b8b6ed21ed86896bb59ee93b5a79ef818 all runs: crashed: WARNING in btrfs_free_reserved_data_space_noquota representative crash: WARNING in btrfs_free_reserved_data_space_noquota, types: [WARNING] # git bisect good 829cca4d1783088e43bace57a555044cc937c554 Bisecting: 338 revisions left to test after this (roughly 9 steps) [08e30833f86ba25945e416b9f372791aacfef153] Merge tag 'lsm-pr-20230420' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm testing commit 08e30833f86ba25945e416b9f372791aacfef153 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 09babc46f6f9ccb6ef008afd28964911439e0dd5452d7e2f19e816c6f5e3a1ea all runs: OK false negative chance: 0.000 # git bisect bad 08e30833f86ba25945e416b9f372791aacfef153 Bisecting: 189 revisions left to test after this (roughly 8 steps) [cb0856346a60fe3eb837ba5e73588a41f81ac05f] Merge tag 'mm-hotfixes-stable-2023-04-19-16-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit cb0856346a60fe3eb837ba5e73588a41f81ac05f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 724674f828c5892c36aeb5128f2f0114218609d0516656cfecfeeb384969e7b4 all runs: crashed: WARNING in btrfs_free_reserved_data_space_noquota representative crash: WARNING in btrfs_free_reserved_data_space_noquota, types: [WARNING] # git bisect good cb0856346a60fe3eb837ba5e73588a41f81ac05f Bisecting: 93 revisions left to test after this (roughly 7 steps) [84ebdb8e0d9ca261d73677f345814505af172ae0] Merge tag '6.3-rc7-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 testing commit 84ebdb8e0d9ca261d73677f345814505af172ae0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4ddc19a42265fb7785e7558bb7ae3b42d3b83741586e1c9efaf9b5e2e0be50d7 all runs: crashed: WARNING in btrfs_free_reserved_data_space_noquota representative crash: WARNING in btrfs_free_reserved_data_space_noquota, types: [WARNING] # git bisect good 84ebdb8e0d9ca261d73677f345814505af172ae0 Bisecting: 42 revisions left to test after this (roughly 6 steps) [a5624566431de76b17862383d9ae254d9606cba9] Merge branch 'x86-rep-insns': x86 user copy clarifications testing commit a5624566431de76b17862383d9ae254d9606cba9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: be8cc826570151e4d04faf16fc78f29f67e2520227916465e322694e951de9ac all runs: OK false negative chance: 0.000 # git bisect bad a5624566431de76b17862383d9ae254d9606cba9 Bisecting: 25 revisions left to test after this (roughly 5 steps) [d88867a24fa7e9c75b8f86df20d4f40e2fe61e9b] Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm testing commit d88867a24fa7e9c75b8f86df20d4f40e2fe61e9b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 877291a206029de6abfbbd7db8b942a63bb38ec9f8d41ffd7a9e0a62f57802d9 all runs: crashed: WARNING in btrfs_free_reserved_data_space_noquota representative crash: WARNING in btrfs_free_reserved_data_space_noquota, types: [WARNING] # git bisect good d88867a24fa7e9c75b8f86df20d4f40e2fe61e9b Bisecting: 12 revisions left to test after this (roughly 4 steps) [b9dff2195f8a5847fad801046b26955e05670d31] Merge tag 'iter-ubuf.2-2023-04-21' of git://git.kernel.dk/linux testing commit b9dff2195f8a5847fad801046b26955e05670d31 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4b2dbbee0b9d0d03ea624827c49d8a1a5fd50c54599db65f69ba194c0dccfa4b all runs: crashed: WARNING in btrfs_free_reserved_data_space_noquota representative crash: WARNING in btrfs_free_reserved_data_space_noquota, types: [WARNING] # git bisect good b9dff2195f8a5847fad801046b26955e05670d31 Bisecting: 6 revisions left to test after this (roughly 3 steps) [577e6a7fd50d519c201d20968b6a027a6563dc4c] x86: inline the 'rep movs' in user copies for the FSRM case testing commit 577e6a7fd50d519c201d20968b6a027a6563dc4c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 26cad113b25a3421f0e45644c44a750b6728a4919ee32c822a66c495c7c852be all runs: crashed: WARNING in btrfs_free_reserved_data_space_noquota representative crash: WARNING in btrfs_free_reserved_data_space_noquota, types: [WARNING] # git bisect good 577e6a7fd50d519c201d20968b6a027a6563dc4c Bisecting: 3 revisions left to test after this (roughly 2 steps) [e046fe5a36a970bc14fbfbcb2074a48776f6b671] x86: set FSRS automatically on AMD CPUs that have FSRM testing commit e046fe5a36a970bc14fbfbcb2074a48776f6b671 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0957a31e960cba91a0e032730c1426cd4d0b1f6aff2f87710488c913b85ee514 all runs: crashed: WARNING in btrfs_free_reserved_data_space_noquota representative crash: WARNING in btrfs_free_reserved_data_space_noquota, types: [WARNING] # git bisect good e046fe5a36a970bc14fbfbcb2074a48776f6b671 Bisecting: 1 revision left to test after this (roughly 1 step) [034ff37d34071ff3f48755f728cd229e42a4f15d] x86: rewrite '__copy_user_nocache' function testing commit 034ff37d34071ff3f48755f728cd229e42a4f15d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 958b7054da2ae59c8157f76f7cdc0fa7b7c7da6ae6bf6c6e19c9f4e9a5550dae all runs: crashed: WARNING in btrfs_free_reserved_data_space_noquota representative crash: WARNING in btrfs_free_reserved_data_space_noquota, types: [WARNING] # git bisect good 034ff37d34071ff3f48755f728cd229e42a4f15d Bisecting: 0 revisions left to test after this (roughly 0 steps) [487c20b016dc48230367a7be017f40313e53e3bd] iov: improve copy_iovec_from_user() code generation testing commit 487c20b016dc48230367a7be017f40313e53e3bd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4c49196706596b87af14fcc7ad9edbd2a9124ccda98f63b96fa5b491d9894e17 all runs: OK false negative chance: 0.000 # git bisect bad 487c20b016dc48230367a7be017f40313e53e3bd 487c20b016dc48230367a7be017f40313e53e3bd is the first bad commit commit 487c20b016dc48230367a7be017f40313e53e3bd Author: Linus Torvalds Date: Thu Mar 30 14:53:51 2023 -0700 iov: improve copy_iovec_from_user() code generation Use the same pattern as the compat version of this code does: instead of copying the whole array to a kernel buffer and then having a separate phase of verifying it, just do it one entry at a time, verifying as you go. On Jens' /dev/zero readv() test this improves performance by ~6%. [ This was obviously triggered by Jens' ITER_UBUF updates series ] Reported-and-tested-by: Jens Axboe Link: https://lore.kernel.org/all/de35d11d-bce7-e976-7372-1f2caf417103@kernel.dk/ Signed-off-by: Linus Torvalds lib/iov_iter.c | 35 ++++++++++++++++++++++++++--------- 1 file changed, 26 insertions(+), 9 deletions(-) accumulated error probability: 0.00 culprit signature: 4c49196706596b87af14fcc7ad9edbd2a9124ccda98f63b96fa5b491d9894e17 parent signature: 4b2dbbee0b9d0d03ea624827c49d8a1a5fd50c54599db65f69ba194c0dccfa4b revisions tested: 23, total time: 4h21m44.177836719s (build: 1h53m18.098898038s, test: 2h17m48.777648255s) first good commit: 487c20b016dc48230367a7be017f40313e53e3bd iov: improve copy_iovec_from_user() code generation recipients (to): ["axboe@kernel.dk" "torvalds@linux-foundation.org"] recipients (cc): []