ci2 starts bisection 2024-05-27 06:10:48.658115999 +0000 UTC m=+218057.519083924
bisecting cause commit starting from c13320499ba0efd93174ef6462ae8a7a2933f6e7
building syzkaller on a10a183e260f0ea1a0c37e84ca5c60f28c13e3fd
ensuring issue is reproducible on original commit c13320499ba0efd93174ef6462ae8a7a2933f6e7

testing commit c13320499ba0efd93174ef6462ae8a7a2933f6e7 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 39d2b518a83b64da632d9ed9f6b033fcaa3b2c874cd28e85aad3db3a06856ce1
all runs: crashed: WARNING: kmalloc bug in __snapshot_t_mut
representative crash: WARNING: kmalloc bug in __snapshot_t_mut, types: [WARNING]
check whether we can drop unnecessary instrumentation
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit c13320499ba0efd93174ef6462ae8a7a2933f6e7 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 950c3577c969dc08c2ef53e1157b03e9a38fcc7c1e9c3a0d8bd0b331b621931d
all runs: crashed: WARNING: kmalloc bug in __snapshot_t_mut
representative crash: WARNING: kmalloc bug in __snapshot_t_mut, types: [WARNING]
the bug reproduces without the instrumentation
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
kconfig minimization: base=3971 full=8037 leaves diff=2024
split chunks (needed=false): <2024>
split chunk #0 of len 2024 into 5 parts
testing without sub-chunk 1/5
disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit c13320499ba0efd93174ef6462ae8a7a2933f6e7 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b9801f516803f8da4d55b74ac5abab754698e1a0ee2fa6453aeac2e54f24fd77
all runs: OK
false negative chance: 0.000
testing without sub-chunk 2/5
disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit c13320499ba0efd93174ef6462ae8a7a2933f6e7 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0cb966ebc40535ff39501a2c45a5e46f4314aabe3eb5761f2f52ee9eae39b664
all runs: crashed: WARNING: kmalloc bug in __snapshot_t_mut
representative crash: WARNING: kmalloc bug in __snapshot_t_mut, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit c13320499ba0efd93174ef6462ae8a7a2933f6e7 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 1d5597508b208fc9cf4d4889a1ad35e20298f8c25cf645a916f1c0c841db1eb0
all runs: crashed: WARNING: kmalloc bug in __snapshot_t_mut
representative crash: WARNING: kmalloc bug in __snapshot_t_mut, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing commit c13320499ba0efd93174ef6462ae8a7a2933f6e7 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: af7ca72f5db953fa60b0dc0ffb925a8718da4aa6b60224a460cdb304229fa625
all runs: crashed: WARNING: kmalloc bug in __snapshot_t_mut
representative crash: WARNING: kmalloc bug in __snapshot_t_mut, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit c13320499ba0efd93174ef6462ae8a7a2933f6e7 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0ed2a2e07800835c502616208da9c695874e6befe50e579b998d47f38d9798ef
all runs: crashed: WARNING: kmalloc bug in __snapshot_t_mut
representative crash: WARNING: kmalloc bug in __snapshot_t_mut, types: [WARNING]
the chunk can be dropped
minimized to 405 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 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_CONFIGURES_CPU_MITIGATIONS ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_HAS_CPU_PASID ARCH_WANT_PMD_MKWRITE ASM_MODVERSIONS ASYNC_CORE ASYNC_MEMCPY ASYNC_PQ ASYNC_RAID6_RECOV ASYNC_TX_DMA ASYNC_XOR AS_VAES AS_VPCLMULQDQ 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 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_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_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_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_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MRVL BT_MRVL_SDIO 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_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 CLOSURES 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_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_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_AESCFB 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_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_SIG 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_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_PFIFO_FAST 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 DMA_NEED_SYNC 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 ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GPIOLIB HAMRADIO IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ ISDN ISDN_CAPI 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 WIRELESS_EXT WLAN WLAN_VENDOR_ATH X86_X32_ABI ZONE_DEVICE]
disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
picked [v6.9 v6.8 v6.7 v6.5 v6.3 v6.1 v5.19 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 32 release tags
testing release v6.9
testing commit a38297e3fb012ddfa7ce0321a7e5a8daeb1872b6 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5aef4913decdbc18629b5ca019a8addf05902db7115ee76a1840e88192e0527c
all runs: OK
false negative chance: 0.000
# git bisect start c13320499ba0efd93174ef6462ae8a7a2933f6e7 a38297e3fb012ddfa7ce0321a7e5a8daeb1872b6
Bisecting: 5703 revisions left to test after this (roughly 13 steps)
[db5d28c0bfe566908719bec8e25443aabecbb802] Merge tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel

testing commit db5d28c0bfe566908719bec8e25443aabecbb802 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: d061c1071ed880addd3585d57a27774264c58f81be56ee18694835c1fe22e84a
all runs: OK
false negative chance: 0.000
# git bisect good db5d28c0bfe566908719bec8e25443aabecbb802
Bisecting: 2917 revisions left to test after this (roughly 12 steps)
[a90f1cd105c6c5c246f07ca371d873d35b78c7d9] Merge tag 'turbostat-for-Linux-6.10-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

testing commit a90f1cd105c6c5c246f07ca371d873d35b78c7d9 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 098cd207182a00d0474f7e6a42294653ad9878b1a3445a85d6bc8efb69e07905
all runs: OK
false negative chance: 0.000
# git bisect good a90f1cd105c6c5c246f07ca371d873d35b78c7d9
Bisecting: 1395 revisions left to test after this (roughly 11 steps)
[29c73fc794c83505066ee6db893b2a83ac5fac63] Merge tag 'perf-tools-for-v6.10-1-2024-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

testing commit 29c73fc794c83505066ee6db893b2a83ac5fac63 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 93dc06d4720b4e596d035cc27aa2c751ae34b57a53eeffa08d639f2f73c3d14c
all runs: crashed: WARNING: kmalloc bug in __snapshot_t_mut
representative crash: WARNING: kmalloc bug in __snapshot_t_mut, types: [WARNING]
# git bisect bad 29c73fc794c83505066ee6db893b2a83ac5fac63
Bisecting: 770 revisions left to test after this (roughly 10 steps)
[30aec6e1bb617e1349d7fa5498898d7d4351d71e] Merge tag 'vfio-v6.10-rc1' of https://github.com/awilliam/linux-vfio

testing commit 30aec6e1bb617e1349d7fa5498898d7d4351d71e gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 2d88bb0306dabb88a3fafe55d25d2a393ce1ffffb9c80f5b02be53c5a91def7e
all runs: crashed: WARNING: kmalloc bug in __snapshot_t_mut
representative crash: WARNING: kmalloc bug in __snapshot_t_mut, types: [WARNING]
# git bisect bad 30aec6e1bb617e1349d7fa5498898d7d4351d71e
Bisecting: 387 revisions left to test after this (roughly 9 steps)
[80f9d9023058e156eb09226ac339f56a8411bc8a] Merge tag 'dmi-for-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging

testing commit 80f9d9023058e156eb09226ac339f56a8411bc8a gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0545eb0872270abd99b068c51b856441f2467b941d6bcf036275bd93a3ce1b10
all runs: crashed: WARNING: kmalloc bug in __snapshot_t_mut
representative crash: WARNING: kmalloc bug in __snapshot_t_mut, types: [WARNING]
# git bisect bad 80f9d9023058e156eb09226ac339f56a8411bc8a
Bisecting: 206 revisions left to test after this (roughly 8 steps)
[16dbfae867cdeb32f3d24cea81193793d5decc61] Merge tag 'bcachefs-2024-05-19' of https://evilpiepirate.org/git/bcachefs

testing commit 16dbfae867cdeb32f3d24cea81193793d5decc61 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e3722c1b8f09d01ca4594a2d00b210c5c92f32b507d58267c20fe79ecf20cb2b
all runs: crashed: WARNING: kmalloc bug in __snapshot_t_mut
representative crash: WARNING: kmalloc bug in __snapshot_t_mut, types: [WARNING]
# git bisect bad 16dbfae867cdeb32f3d24cea81193793d5decc61
Bisecting: 77 revisions left to test after this (roughly 6 steps)
[4da1713a8db5b6d5e421b20687ecde9354ee85cf] bcachefs: check for inodes that should have backpointers in fsck

testing commit 4da1713a8db5b6d5e421b20687ecde9354ee85cf gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 2851829fc07ecb8a97fc2bf6ef31bddb4bcecf9972d7f74ba2680758cf48b895
all runs: crashed: WARNING: kmalloc bug in __snapshot_t_mut
representative crash: WARNING: kmalloc bug in __snapshot_t_mut, types: [WARNING]
# git bisect bad 4da1713a8db5b6d5e421b20687ecde9354ee85cf
Bisecting: 38 revisions left to test after this (roughly 5 steps)
[b7f10636d51a8f07fdf569c2de5cbfabae549c91] bcachefs: prefer drop_locks_do()

testing commit b7f10636d51a8f07fdf569c2de5cbfabae549c91 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 06d69a0b1000dec441716f823a9e59568f643057028ad0fd0d4421995d473547
all runs: OK
false negative chance: 0.000
# git bisect good b7f10636d51a8f07fdf569c2de5cbfabae549c91
Bisecting: 19 revisions left to test after this (roughly 4 steps)
[e4f2c4dfeeaeb70164967aa4abfa1190f7e61781] bcachefs: Remove calls to folio_set_error

testing commit e4f2c4dfeeaeb70164967aa4abfa1190f7e61781 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a993877ec8746ae03b610b31fd38861bb8799c85a3a7d4ddbb381b5aee3b7359
all runs: crashed: WARNING: kmalloc bug in __snapshot_t_mut
representative crash: WARNING: kmalloc bug in __snapshot_t_mut, types: [WARNING]
# git bisect bad e4f2c4dfeeaeb70164967aa4abfa1190f7e61781
Bisecting: 9 revisions left to test after this (roughly 3 steps)
[fd104e2967b766f1151b4c58daa67cbde620b376] bcachefs: bch2_trans_verify_not_unlocked()

testing commit fd104e2967b766f1151b4c58daa67cbde620b376 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b93ca276fe7f7f84e3a7b0fb99b3c24a5a4a3205155a9e049663b5c6a42b4e52
all runs: OK
false negative chance: 0.000
# git bisect good fd104e2967b766f1151b4c58daa67cbde620b376
Bisecting: 4 revisions left to test after this (roughly 2 steps)
[5a2d15213d3187ed3b059a2ec8865aa9172fd3a2] bcachefs: Rip bch2_snapshot_equiv() out of fsck

testing commit 5a2d15213d3187ed3b059a2ec8865aa9172fd3a2 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 22671321f1be04081380be16ee696d4875e2c19e5254be11e436252195e5b3cc
all runs: OK
false negative chance: 0.000
# git bisect good 5a2d15213d3187ed3b059a2ec8865aa9172fd3a2
Bisecting: 2 revisions left to test after this (roughly 1 step)
[aef7eecb5711f8bcbaf0709793ff950c290e3493] bcachefs: Sync journal when we complete a recovery pass

testing commit aef7eecb5711f8bcbaf0709793ff950c290e3493 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a6a19ab125e8882eebc8810fb2659a0070ceea754d7207f30e84320de1565608
all runs: crashed: WARNING: kmalloc bug in __snapshot_t_mut
representative crash: WARNING: kmalloc bug in __snapshot_t_mut, types: [WARNING]
# git bisect bad aef7eecb5711f8bcbaf0709793ff950c290e3493
Bisecting: 0 revisions left to test after this (roughly 0 steps)
[f7643bc9749f270d487c32dc35b578575bf1adb0] bcachefs: make btree read errors silent during scan

testing commit f7643bc9749f270d487c32dc35b578575bf1adb0 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: f629059431fef63e2598d855906d0220d1dd80055adb478bba601db7fac29023
all runs: crashed: WARNING: kmalloc bug in __snapshot_t_mut
representative crash: WARNING: kmalloc bug in __snapshot_t_mut, types: [WARNING]
# git bisect bad f7643bc9749f270d487c32dc35b578575bf1adb0
f7643bc9749f270d487c32dc35b578575bf1adb0 is the first bad commit
commit f7643bc9749f270d487c32dc35b578575bf1adb0
Author: Kent Overstreet <kent.overstreet@linux.dev>
Date:   Wed Apr 17 01:26:02 2024 -0400

    bcachefs: make btree read errors silent during scan
    
    Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

 fs/bcachefs/btree_io.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

accumulated error probability: 0.00
culprit signature: f629059431fef63e2598d855906d0220d1dd80055adb478bba601db7fac29023
parent  signature: 22671321f1be04081380be16ee696d4875e2c19e5254be11e436252195e5b3cc
revisions tested: 21, total time: 3h52m38.711861762s (build: 1h35m52.570832519s, test: 2h8m21.97315799s)
first bad commit: f7643bc9749f270d487c32dc35b578575bf1adb0 bcachefs: make btree read errors silent during scan
recipients (to): ["kent.overstreet@linux.dev"]
recipients (cc): []
crash: WARNING: kmalloc bug in __snapshot_t_mut
bcachefs (loop0): mounting version 1.7: mi_btree_bitmap opts=metadata_checksum=crc64,data_checksum=xxhash,compression=gzip,str_hash=crc64,nojournal_transaction_names
bcachefs (loop0): recovering from clean shutdown, journal seq 7
bcachefs (loop0): alloc_read... done
bcachefs (loop0): stripes_read... done
bcachefs (loop0): snapshots_read...
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2357 at mm/util.c:649 kvmalloc_node+0xbb/0xd0 mm/util.c:649
Modules linked in:
CPU: 0 PID: 2357 Comm: syz-executor.0 Not tainted 6.9.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:kvmalloc_node+0xbb/0xd0 mm/util.c:649
Code: df 41 89 e8 ff 74 24 18 41 56 68 00 04 00 00 e8 1b 8b 05 00 48 83 c4 18 5b 41 5e 5d c3 cc cc cc cc f7 c5 00 20 00 00 75 9e 90 <0f> 0b 90 31 c0 eb e7 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90
RSP: 0018:ffffc90001e8f818 EFLAGS: 00010246
RAX: 000000000000006f RBX: 00000037ffc7c850 RCX: 0000004000000000
RDX: 00000037ffc7c850 RSI: ffffffff836c93ed RDI: ffffffff835775bd
RBP: 0000000000000dc0 R08: 0000000000012dc0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888179680000
R13: 00000037ffc7c800 R14: 00000000ffffffff R15: 00000000000100ff
FS:  00007f80af4016c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f80a6301150 CR3: 0000000103336000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kvmalloc include/linux/slab.h:766 [inline]
 kvzalloc include/linux/slab.h:774 [inline]
 __snapshot_t_mut+0x30/0xb0 fs/bcachefs/snapshot.c:171
 snapshot_t_mut fs/bcachefs/snapshot.c:200 [inline]
 __bch2_mark_snapshot+0x1bf/0x1f0 fs/bcachefs/snapshot.c:310
 bch2_snapshots_read+0x205/0x630 fs/bcachefs/snapshot.c:1844
 bch2_run_recovery_pass fs/bcachefs/recovery_passes.c:182 [inline]
 bch2_run_recovery_passes+0xaf/0x210 fs/bcachefs/recovery_passes.c:225
 bch2_fs_recovery+0x9b3/0x1160 fs/bcachefs/recovery.c:799
 bch2_fs_start+0x1b9/0x270 fs/bcachefs/super.c:1045
 bch2_fs_open+0x404/0x530 fs/bcachefs/super.c:2106
 bch2_mount+0x277/0x5c0 fs/bcachefs/fs.c:1903
 legacy_get_tree+0x2d/0x60 fs/fs_context.c:662
 vfs_get_tree+0x2a/0xf0 fs/super.c:1779
 do_new_mount+0x15a/0x3a0 fs/namespace.c:3352
 do_mount fs/namespace.c:3692 [inline]
 __do_sys_mount fs/namespace.c:3898 [inline]
 __se_sys_mount+0x14b/0x1c0 fs/namespace.c:3875
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xe2/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f80ae67e5ea
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f80af400ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f80af400f80 RCX: 00007f80ae67e5ea
RDX: 0000000020005d80 RSI: 0000000020005dc0 RDI: 00007f80af400f40
RBP: 0000000020005d80 R08: 00007f80af400f80 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020005dc0
R13: 00007f80af400f40 R14: 0000000000005d6a R15: 0000000020005e00
 </TASK>