ci2 starts bisection 2023-11-19 17:20:20.670914404 +0000 UTC m=+515087.778945147 bisecting cause commit starting from 23dfa043f6d5ac9339607f077f2c30cd50798e12 building syzkaller on cb976f63e0177b96eb9ce1c631cc5e2c4b4b0759 ensuring issue is reproducible on original commit 23dfa043f6d5ac9339607f077f2c30cd50798e12 testing commit 23dfa043f6d5ac9339607f077f2c30cd50798e12 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f198e20c91c3db36eca81900a9096e8d1094b4011bc95f41334b933d0c573093 all runs: crashed: WARNING in btrfs_release_global_block_rsv representative crash: WARNING in btrfs_release_global_block_rsv, 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 23dfa043f6d5ac9339607f077f2c30cd50798e12 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 08be1d9b5162066e8f7a7fca6058abc491fc0064a0c4019ff2c4d9ae4d81936d all runs: crashed: WARNING in btrfs_release_global_block_rsv representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed kconfig minimization: base=3915 full=7651 leaves diff=2009 split chunks (needed=false): <2009> split chunk #0 of len 2009 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 23dfa043f6d5ac9339607f077f2c30cd50798e12 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1489f75e78bfd14b581c0141a0c554e55720f1b93880ffad3054907b6a5ab42c all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 23dfa043f6d5ac9339607f077f2c30cd50798e12 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6f4b0a2b6b0f40136dcc7bd734422b8cfa2a8b58d7c2033d5426857252d9adc5 all runs: crashed: WARNING in btrfs_release_global_block_rsv representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 23dfa043f6d5ac9339607f077f2c30cd50798e12 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b10f8a947f4884e6328b2548b9d9b5a5e967567c2dff1ccba8aa8e80b1adf12f all runs: crashed: WARNING in btrfs_release_global_block_rsv representative crash: WARNING in btrfs_release_global_block_rsv, 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 23dfa043f6d5ac9339607f077f2c30cd50798e12 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 690bb675cc8ee277a9b08dbdb19edf5d09f973d6e203af636f158c82c0ae1f3a all runs: crashed: WARNING in btrfs_release_global_block_rsv representative crash: WARNING in btrfs_release_global_block_rsv, 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 23dfa043f6d5ac9339607f077f2c30cd50798e12 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9c74a6854e18e27ccdbb60709d4344bcc4b6938af3e7f1bfdf8bd0d56dbe66ae all runs: crashed: WARNING in btrfs_release_global_block_rsv representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] the chunk can be dropped minimized to 402 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_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 BCACHEFS_DEBUG BCACHEFS_FS BCACHEFS_QUOTA 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_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_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_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_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_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 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 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 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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed picked [v6.6 v6.5 v6.4 v6.2 v6.0 v5.18 v5.16 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 29 release tags testing release v6.6 testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 06eab89be6df2bb7c93bc0ee33bb0551df52beca37321281becebb547b2ba779 run #0: crashed: WARNING in btrfs_release_global_block_rsv run #1: crashed: WARNING in btrfs_release_global_block_rsv run #2: crashed: WARNING in btrfs_release_global_block_rsv run #3: crashed: WARNING in btrfs_release_global_block_rsv run #4: crashed: WARNING in btrfs_release_global_block_rsv run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] testing release v6.5 testing commit 2dde18cd1d8fac735875f2e4987f11817cc0bc2c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4b09e693e4fc97118bb56c9ce162ce237cf12ad164e68e8b7508894243dd59dd run #0: crashed: WARNING in btrfs_release_global_block_rsv run #1: crashed: WARNING in btrfs_release_global_block_rsv run #2: crashed: WARNING in btrfs_release_global_block_rsv run #3: crashed: WARNING in btrfs_release_global_block_rsv run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4acd098f6346f0281c9b06d394df0f56e1c520112a28d0a9b5d039bf72de4b46 run #0: crashed: WARNING in btrfs_release_global_block_rsv run #1: crashed: WARNING in btrfs_release_global_block_rsv run #2: crashed: WARNING in btrfs_release_global_block_rsv run #3: crashed: WARNING in btrfs_release_global_block_rsv run #4: crashed: WARNING in btrfs_release_global_block_rsv run #5: crashed: WARNING in btrfs_release_global_block_rsv run #6: crashed: WARNING in btrfs_release_global_block_rsv run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] testing release v6.2 testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 20aa62e0636c9d8f7ee6d69bc76a08768501883ac7b0c6ce0e691d231a76f1b2 run #0: crashed: WARNING in btrfs_release_global_block_rsv run #1: crashed: WARNING in btrfs_release_global_block_rsv run #2: crashed: WARNING in btrfs_release_global_block_rsv run #3: crashed: WARNING in btrfs_release_global_block_rsv run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] testing release v6.0 testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 91d1ce46ba292a0a71ee21f9055bb20d5b4fb0246586b12b0229d16c9a9c60a2 run #0: crashed: WARNING in btrfs_release_global_block_rsv run #1: crashed: WARNING in btrfs_release_global_block_rsv run #2: crashed: WARNING in btrfs_release_global_block_rsv run #3: crashed: WARNING in btrfs_release_global_block_rsv run #4: crashed: WARNING in btrfs_release_global_block_rsv run #5: crashed: WARNING in btrfs_release_global_block_rsv run #6: crashed: WARNING in btrfs_release_global_block_rsv run #7: crashed: WARNING in btrfs_release_global_block_rsv run #8: crashed: WARNING in btrfs_release_global_block_rsv run #9: crashed: WARNING in btrfs_release_global_block_rsv run #10: crashed: WARNING in btrfs_release_global_block_rsv run #11: crashed: WARNING in btrfs_release_global_block_rsv run #12: crashed: WARNING in btrfs_release_global_block_rsv run #13: crashed: WARNING in btrfs_release_global_block_rsv run #14: crashed: WARNING in btrfs_release_global_block_rsv run #15: crashed: WARNING in btrfs_release_global_block_rsv run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] testing release v5.18 testing commit 4b0986a3613c92f4ec1bdc7f60ec66fea135991f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 91825e14748c368257b2c7e6b76f7426c786464c4ddfd9970c9ba5f8a3157c77 run #0: crashed: WARNING in btrfs_release_global_block_rsv run #1: crashed: WARNING in btrfs_release_global_block_rsv run #2: crashed: WARNING in btrfs_release_global_block_rsv run #3: crashed: WARNING in btrfs_release_global_block_rsv run #4: crashed: WARNING in btrfs_release_global_block_rsv run #5: crashed: WARNING in btrfs_release_global_block_rsv run #6: crashed: WARNING in btrfs_release_global_block_rsv run #7: crashed: WARNING in btrfs_release_global_block_rsv run #8: crashed: WARNING in btrfs_release_global_block_rsv run #9: crashed: WARNING in btrfs_release_global_block_rsv run #10: crashed: WARNING in btrfs_release_global_block_rsv run #11: crashed: WARNING in btrfs_release_global_block_rsv run #12: crashed: WARNING in btrfs_release_global_block_rsv run #13: crashed: WARNING in btrfs_release_global_block_rsv run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] testing release v5.16 testing commit df0cc57e057f18e44dac8e6c18aba47ab53202f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: af6f48559da64b2f2cd89ddd2537e917eaa3fa2d853fc4d55adb45cfb12e404d all runs: OK false negative chance: 0.000 # git bisect start 4b0986a3613c92f4ec1bdc7f60ec66fea135991f df0cc57e057f18e44dac8e6c18aba47ab53202f9 Bisecting: 15200 revisions left to test after this (roughly 14 steps) [616355cc818c6ddadc393fdfd4491f94458cb715] Merge tag 'for-5.18/block-2022-03-18' of git://git.kernel.dk/linux-block testing commit 616355cc818c6ddadc393fdfd4491f94458cb715 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ce071473a4aa52a10e3ee88753effb11e24ee8cc551440761a13165f1c4824b2 run #0: crashed: WARNING in btrfs_release_global_block_rsv run #1: crashed: WARNING in btrfs_release_global_block_rsv run #2: crashed: WARNING in btrfs_release_global_block_rsv run #3: crashed: WARNING in btrfs_release_global_block_rsv run #4: crashed: WARNING in btrfs_release_global_block_rsv run #5: crashed: WARNING in btrfs_release_global_block_rsv run #6: crashed: WARNING in btrfs_release_global_block_rsv run #7: crashed: WARNING in btrfs_release_global_block_rsv run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: crashed: WARNING in btrfs_release_global_block_rsv run #17: OK run #18: OK run #19: OK representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] # git bisect bad 616355cc818c6ddadc393fdfd4491f94458cb715 Bisecting: 7586 revisions left to test after this (roughly 13 steps) [8834147f9505661859ce44549bf601e2a06bba7c] Merge tag 'fscache-rewrite-20220111' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs testing commit 8834147f9505661859ce44549bf601e2a06bba7c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f2549644c70ce36365dad952c4c8d73514fb4f6b44833f3bfd483266ed970958 run #0: crashed: WARNING in btrfs_release_global_block_rsv run #1: crashed: WARNING in btrfs_release_global_block_rsv run #2: crashed: WARNING in btrfs_release_global_block_rsv run #3: crashed: WARNING in btrfs_release_global_block_rsv run #4: crashed: WARNING in btrfs_release_global_block_rsv run #5: crashed: WARNING in btrfs_release_global_block_rsv run #6: crashed: WARNING in btrfs_release_global_block_rsv run #7: crashed: WARNING in btrfs_release_global_block_rsv run #8: crashed: WARNING in btrfs_release_global_block_rsv run #9: crashed: WARNING in btrfs_release_global_block_rsv run #10: crashed: WARNING in btrfs_release_global_block_rsv run #11: crashed: WARNING in btrfs_release_global_block_rsv run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: crashed: WARNING in btrfs_release_global_block_rsv representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] # git bisect bad 8834147f9505661859ce44549bf601e2a06bba7c Bisecting: 4798 revisions left to test after this (roughly 12 steps) [9bcbf894b6872216ef61faf17248ec234e3db6bc] Merge tag 'media/v5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media testing commit 9bcbf894b6872216ef61faf17248ec234e3db6bc gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b79ed345054b8d9289c170794bd17872a33498a70c8a462d9c6b84f6086fdace all runs: OK false negative chance: 0.000 # git bisect good 9bcbf894b6872216ef61faf17248ec234e3db6bc Bisecting: 2394 revisions left to test after this (roughly 11 steps) [fe8152b38d3a994c4c6fdbc0cd6551d569a5715a] Merge tag 'devprop-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm testing commit fe8152b38d3a994c4c6fdbc0cd6551d569a5715a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cb11735fb52c075cd1fe2f02ff4f66cba38015a8a5befca7bb2b02a69bedaaa2 all runs: OK false negative chance: 0.000 # git bisect good fe8152b38d3a994c4c6fdbc0cd6551d569a5715a Bisecting: 1209 revisions left to test after this (roughly 10 steps) [5672cdfba4fefd6178b6c4078cb1bb7bf6ce0573] Merge tag 'for-linus-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs testing commit 5672cdfba4fefd6178b6c4078cb1bb7bf6ce0573 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 24b01ce3c89f03b6e6a551ed63542e3f99a4f6cd0b9f74a6203324cd48d77fb7 run #0: crashed: WARNING in btrfs_release_global_block_rsv run #1: crashed: WARNING in btrfs_release_global_block_rsv run #2: crashed: WARNING in btrfs_release_global_block_rsv run #3: crashed: WARNING in btrfs_release_global_block_rsv run #4: crashed: WARNING in btrfs_release_global_block_rsv run #5: crashed: WARNING in btrfs_release_global_block_rsv run #6: crashed: WARNING in btrfs_release_global_block_rsv run #7: crashed: WARNING in btrfs_release_global_block_rsv run #8: crashed: WARNING in btrfs_release_global_block_rsv run #9: crashed: WARNING in btrfs_release_global_block_rsv run #10: crashed: WARNING in btrfs_release_global_block_rsv run #11: crashed: WARNING in btrfs_release_global_block_rsv run #12: crashed: WARNING in btrfs_release_global_block_rsv run #13: crashed: WARNING in btrfs_release_global_block_rsv run #14: crashed: WARNING in btrfs_release_global_block_rsv run #15: crashed: WARNING in btrfs_release_global_block_rsv run #16: crashed: WARNING in btrfs_release_global_block_rsv run #17: crashed: WARNING in btrfs_release_global_block_rsv run #18: OK run #19: OK representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] # git bisect bad 5672cdfba4fefd6178b6c4078cb1bb7bf6ce0573 Bisecting: 623 revisions left to test after this (roughly 9 steps) [347708875a2fac81dd99ec826248ec29ac28f441] Merge tag 'platform-drivers-x86-v5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 testing commit 347708875a2fac81dd99ec826248ec29ac28f441 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 83ee38c6393b9690694e0f1d81ea4b6b69514fff0cae7757b52f9251fc5fcbfa all runs: OK false negative chance: 0.000 # git bisect good 347708875a2fac81dd99ec826248ec29ac28f441 Bisecting: 297 revisions left to test after this (roughly 8 steps) [c288ea679840de4dee2ce6da5d0f139e3774ad86] Merge tag 'gpio-updates-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux testing commit c288ea679840de4dee2ce6da5d0f139e3774ad86 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eb829e682a6f054a972dd7c749e257b277be74373686efa07daa03006574bea7 all runs: OK false negative chance: 0.000 # git bisect good c288ea679840de4dee2ce6da5d0f139e3774ad86 Bisecting: 182 revisions left to test after this (roughly 7 steps) [36c86a9e1be3b29f9f075a946df55dfe1d818019] btrfs: output more debug messages for uncommitted transaction testing commit 36c86a9e1be3b29f9f075a946df55dfe1d818019 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cf9ddb7fcc66675afffa3fc819214a8394c119539b3528d27c1c69e94e6fe102 run #0: crashed: WARNING in btrfs_release_global_block_rsv run #1: crashed: WARNING in btrfs_release_global_block_rsv run #2: crashed: WARNING in btrfs_release_global_block_rsv run #3: crashed: WARNING in btrfs_release_global_block_rsv run #4: crashed: WARNING in btrfs_release_global_block_rsv run #5: crashed: WARNING in btrfs_release_global_block_rsv run #6: crashed: WARNING in btrfs_release_global_block_rsv run #7: crashed: WARNING in btrfs_release_global_block_rsv run #8: crashed: WARNING in btrfs_release_global_block_rsv run #9: crashed: WARNING in btrfs_release_global_block_rsv run #10: crashed: WARNING in btrfs_release_global_block_rsv run #11: crashed: WARNING in btrfs_release_global_block_rsv run #12: crashed: WARNING in btrfs_release_global_block_rsv run #13: crashed: WARNING in btrfs_release_global_block_rsv run #14: crashed: WARNING in btrfs_release_global_block_rsv run #15: crashed: WARNING in btrfs_release_global_block_rsv run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] # git bisect bad 36c86a9e1be3b29f9f075a946df55dfe1d818019 Bisecting: 57 revisions left to test after this (roughly 6 steps) [7fcf8a0050df003776d10602c9c52b57212f3345] btrfs: remove useless WARN_ON in record_root_in_trans testing commit 7fcf8a0050df003776d10602c9c52b57212f3345 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6fc1669a9228093731c990ea402562de11e0fb5c780af58cba85de17c4fe72ef all runs: OK false negative chance: 0.000 # git bisect good 7fcf8a0050df003776d10602c9c52b57212f3345 Bisecting: 28 revisions left to test after this (roughly 5 steps) [71d18b53540f106a394cb35ed93b487b76678b06] btrfs: add inode to truncate control testing commit 71d18b53540f106a394cb35ed93b487b76678b06 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1f6dbe9973bfb622e0170ce4608a086ea84a43b62c1a80d8e6e72724df4711d2 all runs: OK false negative chance: 0.000 # git bisect good 71d18b53540f106a394cb35ed93b487b76678b06 Bisecting: 14 revisions left to test after this (roughly 4 steps) [736727100067267708d221632ffff4083fc0b278] btrfs: zoned: drop redundant check for REQ_OP_ZONE_APPEND and btrfs_is_zoned testing commit 736727100067267708d221632ffff4083fc0b278 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ab111d99939243a5ebc528f8517b5b4905789dab44d78f0eb7969e111b8baf10 run #0: crashed: WARNING in btrfs_release_global_block_rsv run #1: crashed: WARNING in btrfs_release_global_block_rsv run #2: crashed: WARNING in btrfs_release_global_block_rsv run #3: crashed: WARNING in btrfs_release_global_block_rsv run #4: crashed: WARNING in btrfs_release_global_block_rsv run #5: crashed: WARNING in btrfs_release_global_block_rsv run #6: crashed: WARNING in btrfs_release_global_block_rsv run #7: crashed: WARNING in btrfs_release_global_block_rsv run #8: crashed: WARNING in btrfs_release_global_block_rsv run #9: crashed: WARNING in btrfs_release_global_block_rsv run #10: crashed: WARNING in btrfs_release_global_block_rsv run #11: crashed: WARNING in btrfs_release_global_block_rsv run #12: crashed: WARNING in btrfs_release_global_block_rsv run #13: crashed: WARNING in btrfs_release_global_block_rsv run #14: crashed: WARNING in btrfs_release_global_block_rsv run #15: crashed: WARNING in btrfs_release_global_block_rsv run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] # git bisect bad 736727100067267708d221632ffff4083fc0b278 Bisecting: 6 revisions left to test after this (roughly 3 steps) [c9d328c0c4b0dc2e27c219d041855e74bb073ab0] btrfs: scrub: merge SCRUB_PAGES_PER_RD_BIO and SCRUB_PAGES_PER_WR_BIO testing commit c9d328c0c4b0dc2e27c219d041855e74bb073ab0 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 70899f41d823cdbe4a028bcbde4f85727781d3471ac02e9be5497a548b34ba6a all runs: OK false negative chance: 0.000 # git bisect good c9d328c0c4b0dc2e27c219d041855e74bb073ab0 Bisecting: 3 revisions left to test after this (roughly 2 steps) [a26d60dedf9af81df7aeaef66353eb391f85e7a9] btrfs: sysfs: add devinfo/fsid to retrieve actual fsid from the device testing commit a26d60dedf9af81df7aeaef66353eb391f85e7a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 79abe0a3b06fb773c21ffbe5ccbe75eed4fc126fe71c98021eb3b2632dd8106c run #0: crashed: WARNING in btrfs_release_global_block_rsv run #1: crashed: WARNING in btrfs_release_global_block_rsv run #2: crashed: WARNING in btrfs_release_global_block_rsv run #3: crashed: WARNING in btrfs_release_global_block_rsv run #4: crashed: WARNING in btrfs_release_global_block_rsv run #5: crashed: WARNING in btrfs_release_global_block_rsv run #6: crashed: WARNING in btrfs_release_global_block_rsv run #7: crashed: WARNING in btrfs_release_global_block_rsv run #8: crashed: WARNING in btrfs_release_global_block_rsv run #9: crashed: WARNING in btrfs_release_global_block_rsv run #10: crashed: WARNING in btrfs_release_global_block_rsv run #11: crashed: WARNING in btrfs_release_global_block_rsv run #12: crashed: WARNING in btrfs_release_global_block_rsv run #13: crashed: WARNING in btrfs_release_global_block_rsv run #14: crashed: WARNING in btrfs_release_global_block_rsv run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] # git bisect bad a26d60dedf9af81df7aeaef66353eb391f85e7a9 Bisecting: 0 revisions left to test after this (roughly 1 step) [c18e3235646a8ba74d013067a6475c8d262d3776] btrfs: reserve extra space for the free space tree testing commit c18e3235646a8ba74d013067a6475c8d262d3776 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 12e225a29fea53746c461c075b72a36e1833a331d654d4d62f3a5d472321709c run #0: crashed: WARNING in btrfs_release_global_block_rsv run #1: crashed: WARNING in btrfs_release_global_block_rsv run #2: crashed: WARNING in btrfs_release_global_block_rsv run #3: crashed: WARNING in btrfs_release_global_block_rsv run #4: crashed: WARNING in btrfs_release_global_block_rsv run #5: crashed: WARNING in btrfs_release_global_block_rsv run #6: crashed: WARNING in btrfs_release_global_block_rsv run #7: crashed: WARNING in btrfs_release_global_block_rsv run #8: crashed: WARNING in btrfs_release_global_block_rsv run #9: crashed: WARNING in btrfs_release_global_block_rsv run #10: crashed: WARNING in btrfs_release_global_block_rsv run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in btrfs_release_global_block_rsv, types: [WARNING] # git bisect bad c18e3235646a8ba74d013067a6475c8d262d3776 Bisecting: 0 revisions left to test after this (roughly 0 steps) [9506f9538206acb9a3c24d1ffbd587733b185732] btrfs: include the free space tree in the global rsv minimum calculation testing commit 9506f9538206acb9a3c24d1ffbd587733b185732 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e0936e43530e9fe51bbf05663ce3a9e7073a3cddfc32b97eddf4a0cd8176a894 all runs: OK false negative chance: 0.000 # git bisect good 9506f9538206acb9a3c24d1ffbd587733b185732 c18e3235646a8ba74d013067a6475c8d262d3776 is the first bad commit commit c18e3235646a8ba74d013067a6475c8d262d3776 Author: Josef Bacik Date: Thu Dec 2 15:34:32 2021 -0500 btrfs: reserve extra space for the free space tree Filipe reported a problem where sometimes he'd get an ENOSPC abort when running delayed refs with generic/619 and the free space tree enabled. This is partly because we do not reserve space for modifying the free space tree, nor do we have a block rsv associated with that tree. The delayed_refs_rsv tracks the amount of space required to run delayed refs. This means 1 modification means 1 change to the extent root. With the free space tree this turns into 2 changes, because modifying 1 extent means updating the extent tree and potentially updating the free space tree to either remove that entry or add the free space. Thus if we have the FST enabled, simply double the reservation size for our modification. Reviewed-by: Nikolay Borisov Signed-off-by: Josef Bacik Signed-off-by: David Sterba fs/btrfs/block-rsv.c | 1 + fs/btrfs/delayed-ref.c | 22 ++++++++++++++++++++++ 2 files changed, 23 insertions(+) accumulated error probability: 0.00 culprit signature: 12e225a29fea53746c461c075b72a36e1833a331d654d4d62f3a5d472321709c parent signature: e0936e43530e9fe51bbf05663ce3a9e7073a3cddfc32b97eddf4a0cd8176a894 reproducer is flaky (0.62 repro chance estimate) revisions tested: 29, total time: 7h25m17.125794581s (build: 2h14m2.269979463s, test: 4h59m51.796019318s) first bad commit: c18e3235646a8ba74d013067a6475c8d262d3776 btrfs: reserve extra space for the free space tree recipients (to): ["dsterba@suse.com" "josef@toxicpanda.com" "nborisov@suse.com"] recipients (cc): [] crash: WARNING in btrfs_release_global_block_rsv ------------[ cut here ]------------ WARNING: CPU: 1 PID: 1471 at fs/btrfs/block-rsv.c:473 btrfs_release_global_block_rsv+0xc6/0xd0 fs/btrfs/block-rsv.c:473 Modules linked in: CPU: 1 PID: 1471 Comm: syz-executor.0 Not tainted 5.16.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:btrfs_release_global_block_rsv+0xc6/0xd0 fs/btrfs/block-rsv.c:473 Code: 0f 0b 90 48 83 bb a0 03 00 00 00 74 a2 90 0f 0b 90 48 83 bb a8 03 00 00 00 74 9e 90 0f 0b 90 48 83 bb 18 04 00 00 00 74 9a 90 <0f> 0b 90 eb 94 0f 1f 44 00 00 41 56 41 55 41 54 55 53 48 8b 46 38 RSP: 0018:ffffc900008ffdd8 EFLAGS: 00010206 RAX: 00000000000e0000 RBX: ffff88817d904000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff82d8ff75 RDI: 00000000ffffffff RBP: ffff88817a972c00 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000001c01 R12: ffff88817d904130 R13: ffff88817d905130 R14: dead000000000122 R15: dead000000000100 FS: 0000555556206480(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4979c69988 CR3: 00000001791f8000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btrfs_free_block_groups+0x31d/0x3c0 fs/btrfs/block-group.c:3965 close_ctree+0x2e9/0x32a fs/btrfs/disk-io.c:4623 generic_shutdown_super+0x6c/0x110 fs/super.c:465 kill_anon_super+0x9/0x20 fs/super.c:1059 btrfs_kill_super+0xd/0x20 fs/btrfs/super.c:2348 deactivate_locked_super+0x27/0x90 fs/super.c:335 cleanup_mnt+0x12c/0x190 fs/namespace.c:1137 task_work_run+0x54/0x80 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:175 [inline] exit_to_user_mode_prepare+0x199/0x1a0 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x13/0x30 kernel/entry/common.c:300 do_syscall_64+0x44/0x80 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fbddf215e17 Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fff455bc038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fbddf215e17 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff455bc0f0 RBP: 00007fff455bc0f0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff455bd1b0 R13: 00007fbddf25f3b9 R14: 0000000000015dff R15: 0000000000000005