ci2 starts bisection 2023-09-18 20:23:10.67219122 +0000 UTC m=+475522.701365353
bisecting fixing commit since c957cbb8731536ddc9a01e4c1cd51eab6558aa14
building syzkaller on f325deb023e4e2fb9197004be1b3da738680429c
ensuring issue is reproducible on original commit c957cbb8731536ddc9a01e4c1cd51eab6558aa14

testing commit c957cbb8731536ddc9a01e4c1cd51eab6558aa14 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c2ce2446dee916c6a3257e0c326d239a97569a49429eeea27b973cd1d689f1a2
run #0: crashed: WARNING in mark_buffer_dirty
run #1: crashed: WARNING in mark_buffer_dirty
run #2: crashed: WARNING in mark_buffer_dirty
run #3: crashed: WARNING in mark_buffer_dirty
run #4: crashed: WARNING in mark_buffer_dirty
run #5: crashed: WARNING in mark_buffer_dirty
run #6: crashed: WARNING in mark_buffer_dirty
run #7: crashed: WARNING in mark_buffer_dirty
run #8: crashed: WARNING in mark_buffer_dirty
run #9: crashed: WARNING in mark_buffer_dirty
run #10: crashed: WARNING in mark_buffer_dirty
run #11: crashed: WARNING in mark_buffer_dirty
run #12: crashed: WARNING in mark_buffer_dirty
run #13: crashed: WARNING in mark_buffer_dirty
run #14: crashed: general protection fault in bfs_get_block
run #15: crashed: general protection fault in bfs_get_block
run #16: crashed: WARNING in mark_buffer_dirty
run #17: crashed: WARNING in mark_buffer_dirty
run #18: crashed: WARNING in mark_buffer_dirty
run #19: crashed: WARNING in mark_buffer_dirty
representative crash: WARNING in mark_buffer_dirty, 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 c957cbb8731536ddc9a01e4c1cd51eab6558aa14 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 2a662fe7d1c196bd08f0286f90426623ef7f1a222d664febf764f7de90d3eb7d
run #0: crashed: WARNING in mark_buffer_dirty
run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #2: crashed: WARNING in mark_buffer_dirty
run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #5: crashed: WARNING in mark_buffer_dirty
run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
representative crash: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block, types: [UNKNOWN WARNING]
the bug reproduces without the instrumentation
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
kconfig minimization: base=3703 full=7269 leaves diff=1979
split chunks (needed=false): <1979>
split chunk #0 of len 1979 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 c957cbb8731536ddc9a01e4c1cd51eab6558aa14 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c72c352a255bc26df4d271aba68b67c73594c1f208aa3d265cf23a041916494e
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 c957cbb8731536ddc9a01e4c1cd51eab6558aa14 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 85613a33f8d27596e34d5f96db7bed32f2875ab7a77b859111289790c5a7cd15
run #0: crashed: WARNING in mark_buffer_dirty
run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #3: crashed: WARNING in mark_buffer_dirty
run #4: crashed: WARNING in mark_buffer_dirty
run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #7: crashed: WARNING in mark_buffer_dirty
run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
representative crash: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block, types: [UNKNOWN WARNING]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing commit c957cbb8731536ddc9a01e4c1cd51eab6558aa14 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 410f520a938470d925f4c505b9ddb4ab895943301e699d8a68498b69d81bd98d
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #1: crashed: WARNING in mark_buffer_dirty
run #2: crashed: WARNING in mark_buffer_dirty
run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #4: crashed: WARNING in mark_buffer_dirty
run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #6: crashed: WARNING in mark_buffer_dirty
run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #9: crashed: WARNING in mark_buffer_dirty
representative crash: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block, types: [UNKNOWN WARNING]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit c957cbb8731536ddc9a01e4c1cd51eab6558aa14 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6df127a1cdbc44f7fb850dcc24e9642a052b14c0bee77a12bc02d5b49570e0ef
all runs: crashed: WARNING in mark_buffer_dirty
representative crash: WARNING in mark_buffer_dirty, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit c957cbb8731536ddc9a01e4c1cd51eab6558aa14 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: de8cff4a1c539a5c4a0e0d7fd23e44464d93f08aa2d16a69be2edf32af71ec5e
all runs: crashed: WARNING in mark_buffer_dirty
representative crash: WARNING in mark_buffer_dirty, types: [WARNING]
the chunk can be dropped
minimized to 396 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 ANDROID_BINDERFS ANDROID_BINDER_IPC AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ASHMEM ASM_MODVERSIONS ASN1_ENCODER 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 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 BLK_CGROUP_IOCOST BLK_CGROUP_IOLATENCY BLK_CGROUP_RWSTAT BLK_DEBUG_FS_ZONED BLK_DEV_BSGLIB BLK_DEV_CRYPTOLOOP 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_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_MQ_RDMA BLK_RQ_ALLOC_TIME BLK_WBT BLK_WBT_MQ BONDING 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_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_MSFTEXT 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_USB2 CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_PEAK_USB CAN_RAW CAN_SLCAN CAN_VCAN CAN_VXCAN CAPI_TRACE CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC 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 CGROUP_DEVICE CGROUP_HUGETLB CGROUP_NET_CLASSID CGROUP_NET_PRIO CGROUP_PERF CGROUP_RDMA CGROUP_WRITEBACK 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 CRC7 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_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_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_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_LIB_SM4 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_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_SHA3 CRYPTO_SHA512_SSSE3 CRYPTO_SIMD CRYPTO_SM2 CRYPTO_SM3 CRYPTO_SM4 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_XTS CRYPTO_XXHASH CUSE CYPRESS_FIRMWARE DAMON DAMON_DBGFS DAMON_VADDR DAX DCB DEBUG_PREEMPT DEFAULT_PFIFO_FAST DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DEV_PAGEMAP_OPS DIMLIB DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA 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_CIRRUS_QEMU DRM_DEBUG_MM DRM_DP_AUX_CHARDEV DRM_GEM_SHMEM_HELPER DRM_I915 DRM_I915_CAPTURE_ERROR DRM_I915_COMPRESS_ERROR DRM_I915_USERPTR DRM_KMS_HELPER 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 PREEMPTION RFKILL SERIAL_DEV_BUS STAGING TCG_TPM 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 ZONE_DEVICE]
disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing current HEAD aff03380bda4d25717170b42c92b54143aec0a36
testing commit aff03380bda4d25717170b42c92b54143aec0a36 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5daa72a0bbc1031ba88a3235bc912c9d32d484ef1c7ccc4b2b250fddfa539ea9
run #0: crashed: WARNING in mark_buffer_dirty
run #1: crashed: WARNING in mark_buffer_dirty
run #2: crashed: WARNING in mark_buffer_dirty
run #3: crashed: WARNING in mark_buffer_dirty
run #4: crashed: WARNING in mark_buffer_dirty
run #5: crashed: WARNING in mark_buffer_dirty
run #6: crashed: WARNING in mark_buffer_dirty
run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in bfs_get_block
run #8: crashed: WARNING in mark_buffer_dirty
run #9: crashed: WARNING in mark_buffer_dirty
representative crash: WARNING in mark_buffer_dirty, types: [WARNING]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 1h11m20.798068219s (build: 40m41.402507026s, test: 28m33.44351851s)
crash still not fixed or there were kernel test errors
commit msg: Linux 5.15.131
crash: WARNING in mark_buffer_dirty
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1860 at fs/buffer.c:1084 mark_buffer_dirty+0x112/0x150 fs/buffer.c:1112
Modules linked in:
CPU: 0 PID: 1860 Comm: syz-executor.0 Not tainted 5.15.131-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
RIP: 0010:mark_buffer_dirty+0x112/0x150 fs/buffer.c:1084
Code: c0 48 89 c3 74 39 48 89 c6 48 89 ef 31 d2 e8 d5 39 ef ff 48 89 ef e8 bd ce f9 ff 48 8b 3b be 04 00 00 00 5b 5d e9 3e 15 ff ff <0f> 0b e9 f7 fe ff ff 0f 0b e9 02 ff ff ff 0f 0b e9 3a ff ff ff 48
RSP: 0018:ffffc90001603750 EFLAGS: 00010246
RAX: 0000000000000010 RBX: ffff88817d3505e8 RCX: 0000000000000000
RDX: 0000000000000200 RSI: ffff88817d5de400 RDI: ffff88817d3505e8
RBP: ffff88817d3c9ba8 R08: 0000000000000000 R09: 0000000000000001
R10: ffff8881098b9ee8 R11: 0000000000000001 R12: ffff88817d3505e8
R13: ffff88817b762000 R14: ffff888178a57a00 R15: ffff88817d34f348
FS:  00007f93e49da6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f93e5779988 CR3: 00000001799d4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bfs_move_block fs/bfs/file.c:43 [inline]
 bfs_move_blocks fs/bfs/file.c:56 [inline]
 bfs_get_block+0x119/0x2b0 fs/bfs/file.c:125
 __block_write_begin_int+0x146/0x560 fs/buffer.c:2012
 __block_write_begin fs/buffer.c:2062 [inline]
 block_write_begin+0x43/0x100 fs/buffer.c:2122
 bfs_write_begin+0x2a/0x60 fs/bfs/file.c:177
 generic_perform_write+0xbf/0x1f0 mm/filemap.c:3776
 __generic_file_write_iter+0x147/0x1d0 mm/filemap.c:3903
 generic_file_write_iter+0x58/0xa0 mm/filemap.c:3935
 __kernel_write+0x147/0x2d0 fs/read_write.c:539
 __dump_emit fs/coredump.c:875 [inline]
 dump_emit+0x90/0xc0 fs/coredump.c:912
 elf_core_dump+0xb70/0xfa0 fs/binfmt_elf.c:2264
 do_coredump+0x1057/0x1750 fs/coredump.c:826
 get_signal+0x5b5/0xac0 kernel/signal.c:2875
 arch_do_signal_or_restart+0xeb/0x760 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
 exit_to_user_mode_prepare+0x116/0x190 kernel/entry/common.c:208
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:314
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 002b:0000000020000008 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f93e5777f80 RCX: 00007f93e56588d9
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000000
RBP: 00007f93e56b4b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007f93e5777f80 R15: 00007ffe9a7ca618
 </TASK>