ci starts bisection 2024-01-27 08:26:16.261507901 +0000 UTC m=+135405.192167878
bisecting cause commit starting from 168174d78157bba1315d5f8e1c66548b92c84ae9
building syzkaller on cc4a4020ecb6d62110981f597feea0c04a643efa
ensuring issue is reproducible on original commit 168174d78157bba1315d5f8e1c66548b92c84ae9

testing commit 168174d78157bba1315d5f8e1c66548b92c84ae9 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 57c076e75ef8aa28649e1bb747e41c05f1a262ca85fb06e8d9c9c898922c2110
all runs: crashed: possible deadlock in smc_release
representative crash: possible deadlock in smc_release, types: [LOCKDEP]
check whether we can drop unnecessary instrumentation
disabling configs for [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit 168174d78157bba1315d5f8e1c66548b92c84ae9 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 67bc6e7fbe8a830cda78f32d572db2d4096cdc7d23a980b70ca7eb0b86efb24d
all runs: crashed: possible deadlock in smc_release
representative crash: possible deadlock in smc_release, types: [LOCKDEP]
the bug reproduces without the instrumentation
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed
kconfig minimization: base=3923 full=7687 leaves diff=2013
split chunks (needed=false): <2013>
split chunk #0 of len 2013 into 5 parts
testing without sub-chunk 1/5
disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed
testing commit 168174d78157bba1315d5f8e1c66548b92c84ae9 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e58d6a5bd93d717dd9924604f7e2bcaa903e07989a7bce7bd55065cc1c8aa5cb
all runs: crashed: possible deadlock in smc_release
representative crash: possible deadlock in smc_release, types: [LOCKDEP]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [BUG KASAN ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit 168174d78157bba1315d5f8e1c66548b92c84ae9 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6ffdf84be61e98808d4961106c83ff6585245add3ef265de7ebf2261a64c72d7
all runs: crashed: possible deadlock in smc_release
representative crash: possible deadlock in smc_release, types: [LOCKDEP]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed
testing commit 168174d78157bba1315d5f8e1c66548b92c84ae9 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5b379a66a87f986966f0f7de0a84d9e588179c50d948c0127919ff121fbbfd70
all runs: crashed: possible deadlock in smc_release
representative crash: possible deadlock in smc_release, types: [LOCKDEP]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed
testing commit 168174d78157bba1315d5f8e1c66548b92c84ae9 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 3fb020d8a74d1846ce6f0a6d3b3c0f33dd6ca1b77201eff8d42bfc014a2faa54
all runs: OK
false negative chance: 0.000
testing without sub-chunk 5/5
disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed
testing commit 168174d78157bba1315d5f8e1c66548b92c84ae9 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 1d153ca4614425e00694c69cff83609c78299075f737d1037df61db034fe3097
all runs: crashed: possible deadlock in smc_release
representative crash: possible deadlock in smc_release, types: [LOCKDEP]
the chunk can be dropped
minimized to 403 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 CFG80211 CMA DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN IP_SCTP L2TP LIBNVDIMM MEDIA_COMMON_OPTIONS MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_RETU MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_ARP NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 NLS_CODEPAGE_860 NLS_CODEPAGE_861 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 NLS_CODEPAGE_865 NLS_CODEPAGE_866 NLS_CODEPAGE_869 NLS_CODEPAGE_874 NLS_CODEPAGE_932 NLS_CODEPAGE_936 NLS_CODEPAGE_949 NLS_CODEPAGE_950 NLS_ISO8859_13 NLS_ISO8859_14 NLS_ISO8859_15 NLS_ISO8859_2 NLS_ISO8859_3 NLS_ISO8859_4 NLS_ISO8859_5 NLS_ISO8859_6 NLS_ISO8859_7 NLS_ISO8859_8 NLS_ISO8859_9 NLS_KOI8_R NLS_KOI8_U NLS_MAC_CELTIC NLS_MAC_CENTEURO NLS_MAC_CROATIAN NLS_MAC_CYRILLIC NLS_MAC_GAELIC NLS_MAC_GREEK NLS_MAC_ICELAND NLS_MAC_INUIT NLS_MAC_ROMAN NLS_MAC_ROMANIAN NLS_MAC_TURKISH NLS_UCS2_UTILS NOP_USB_XCEIV NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NTFS_FS NTFS_RW NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN NVMEM_LAYOUTS NVME_CORE NVME_FABRICS NVME_FC NVME_MULTIPATH NVME_RDMA NVME_TARGET NVME_TARGET_FC NVME_TARGET_FCLOOP NVME_TARGET_LOOP NVME_TARGET_RDMA NVME_TARGET_TCP NVME_TCP N_GSM N_HDLC OCFS2_DEBUG_FS OCFS2_FS OCFS2_FS_O2CB OCFS2_FS_STATS OCFS2_FS_USERSPACE_CLUSTER OF_GPIO OF_PMEM OMFS_FS OPENVSWITCH OPENVSWITCH_GENEVE OPENVSWITCH_GRE OPENVSWITCH_VXLAN ORANGEFS_FS OSF_PARTITION OVERLAY_FS OVERLAY_FS_DEBUG OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PADATA PAGE_IDLE_FLAG PAGE_POOL PAGE_REPORTING PAHOLE_HAS_LANG_EXCLUDE PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS PHONET PHYLINK PHY_CPCAP_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PM_CLK PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOE_HASH_BITS_4 PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_NOTIFIERS PRISM2_USB PROC_CHILDREN PSI PSTORE PSTORE_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN R8712U RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_TEA575X RAID6_PQ RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGULATOR REGULATOR_TWL4030 REISERFS_FS REISERFS_FS_POSIX_ACL REISERFS_FS_SECURITY REISERFS_FS_XATTR REISERFS_PROC_INFO RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SAS_ATA SCSI_SAS_ATTRS SCSI_SAS_LIBSAS SCSI_SCAN_ASYNC SCSI_SRP_ATTRS SCTP_COOKIE_HMAC_MD5 SCTP_COOKIE_HMAC_SHA1 SCTP_DEFAULT_COOKIE_HMAC_MD5 SECONDARY_TRUSTED_KEYRING SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS SMC SMC_DIAG SMSC_PHY SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_FAST_LOOKUP SND_CTL_LED SND_DEBUG SND_DMA_SGBUF SND_DRIVERS SND_DUMMY SND_DYNAMIC_MINORS SND_HDA SND_HDA_CODEC_ANALOG SND_HDA_CODEC_CA0110 SND_HDA_CODEC_CA0132 SND_HDA_CODEC_CIRRUS SND_HDA_CODEC_CMEDIA SND_HDA_CODEC_CONEXANT SND_HDA_CODEC_HDMI SND_HDA_CODEC_REALTEK SND_HDA_CODEC_SI3054 SND_HDA_CODEC_SIGMATEL SND_HDA_CODEC_VIA SND_HDA_COMPONENT SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_I915 SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG SND_HRTIMER SND_HWDEP SND_INTEL_DSP_CONFIG SND_INTEL_NHLT SND_INTEL_SOUNDWIRE_ACPI SND_JACK SND_JACK_INPUT_DEV SND_MIXER_OSS SND_OSSEMUL SND_PCI SND_PCM SND_PCMCIA SND_PCM_OSS SND_PCM_OSS_PLUGINS SND_PCM_TIMER SND_PCM_XRUN_DEBUG SND_PROC_FS SND_RAWMIDI SND_SEQUENCER SND_SEQUENCER_OSS SND_SEQ_DEVICE SND_SEQ_DUMMY SND_SEQ_HRTIMER_DEFAULT SND_SEQ_MIDI SND_SEQ_MIDI_EVENT SND_SEQ_VIRMIDI SND_SUPPORT_OLD_API SND_TIMER SND_USB SND_USB_6FIRE SND_USB_AUDIO SND_USB_AUDIO_USE_MEDIA_CONTROLLER SND_USB_CAIAQ SND_USB_CAIAQ_INPUT SND_USB_HIFACE SND_USB_LINE6 SND_USB_POD SND_USB_PODHD SND_USB_TONEPORT SND_USB_UA101 SND_USB_US122L SND_USB_USX2Y SND_USB_VARIAX SND_VERBOSE_PROCFS SND_VIRMIDI SND_VIRTIO SND_VMASTER SND_X86 SOCK_VALIDATE_XMIT SOLARIS_X86_PARTITION SONY_FF SOUND SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_COMPILE_DECOMP_SINGLE SQUASHFS_DECOMP_SINGLE SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZLIB SQUASHFS_ZSTD SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STAGING STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC SYSFB SYSV68_PARTITION SYSV_FS TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TASKS_TRACE_RCU TCG_CRB TCG_TIS TCG_TIS_CORE TCG_TPM TCP_CONG_BBR TCP_CONG_BIC TCP_CONG_CDG TCP_CONG_DCTCP TCP_CONG_HSTCP TCP_CONG_HTCP TCP_CONG_HYBLA TCP_CONG_ILLINOIS TCP_CONG_LP TCP_CONG_NV TCP_CONG_SCALABLE TCP_CONG_VEGAS TCP_CONG_VENO TCP_CONG_WESTWOOD TCP_CONG_YEAH TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THERMAL_NETLINK THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE TMPFS_QUOTA TOUCHSCREEN_SUR40 TOUCHSCREEN_USB_3M TOUCHSCREEN_USB_COMPOSITE TOUCHSCREEN_USB_DMC_TSC10 TOUCHSCREEN_USB_E2I TOUCHSCREEN_USB_EASYTOUCH TOUCHSCREEN_USB_EGALAX TOUCHSCREEN_USB_ELO TOUCHSCREEN_USB_ETT_TC45USB TOUCHSCREEN_USB_ETURBO TOUCHSCREEN_USB_GENERAL_TOUCH TOUCHSCREEN_USB_GOTOP TOUCHSCREEN_USB_GUNZE TOUCHSCREEN_USB_IDEALTEK TOUCHSCREEN_USB_IRTOUCH TOUCHSCREEN_USB_ITM TOUCHSCREEN_USB_JASTEC TOUCHSCREEN_USB_NEXIO TOUCHSCREEN_USB_PANJIT TOUCHSCREEN_USB_ZYTRONIC TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TTPCI_EEPROM TTY_PRINTK TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_FUSB302 TYPEC_TCPCI TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UCSI_ACPI UDF_FS UDMABUF UFS_FS UFS_FS_WRITE UHID ULTRIX_PARTITION UNICODE UNIXWARE_DISKLABEL UNIX_DIAG USB4 USB4_NET USBIP_CORE USBIP_HOST USBIP_VHCI_HCD USBIP_VUDC USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_BDC_UDC USB_BELKIN USB_C67X00_HCD USB_CATC USB_CDC_PHONET USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_HOST USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_DWC2 USB_GADGET USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VXLAN WIRELESS WLAN X86_HAVE_PAE ZONE_DEVICE]
disabling configs for [HANG LEAK UBSAN BUG KASAN ATOMIC_SLEEP], they are not needed
picked [v6.7 v6.6 v6.5 v6.3 v6.1 v5.19 v5.17 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 30 release tags
testing release v6.7
testing commit 0dd3ee31125508cd67f7e7172247f05b7fd1753a gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ff22038d2f40ffbc7417220b4dc4b3ab59a138501153d6baab606cfef2200426
all runs: crashed: possible deadlock in smc_release
representative crash: possible deadlock in smc_release, types: [LOCKDEP]
testing release v6.6
testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c4370e63df5507a85bcd84ab2860e586296595e4f264e92c9f5a3820ff5265b0
all runs: crashed: possible deadlock in smc_release
representative crash: possible deadlock in smc_release, types: [LOCKDEP]
testing release v6.5
testing commit 2dde18cd1d8fac735875f2e4987f11817cc0bc2c gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 67683b0c066c63bdad4672219ce3732872175dd60da0484d4e67b4c648b8e093
all runs: crashed: possible deadlock in smc_release
representative crash: possible deadlock in smc_release, types: [LOCKDEP]
testing release v6.3
testing commit 457391b0380335d5e9a5babdec90ac53928b23b4 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a45ce9cdb9bcf8831990035ffb705ba59a016217327da6ec396f49a0027830c0
all runs: crashed: possible deadlock in smc_release
representative crash: possible deadlock in smc_release, types: [LOCKDEP]
testing release v6.1
testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a466d7778df8256b8683031dd554571479d559af0f3028c6d9b1a96617cbe732
all runs: crashed: possible deadlock in smc_release
representative crash: possible deadlock in smc_release, types: [LOCKDEP]
testing release v5.19
testing commit 3d7cb6b04c3f3115719235cc6866b10326de34cd gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 76cb96c94ed4f99794338f8c8ef883624a6d6c0751a2d0171870877ef386fa43
all runs: OK
false negative chance: 0.000
# git bisect start 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 3d7cb6b04c3f3115719235cc6866b10326de34cd
Bisecting: 15849 revisions left to test after this (roughly 14 steps)
[26f6a2aefd3167a06ac0e9de1fb09b8900878eea] Merge patch series "can: gs_usb: hardware timestamp support"

testing commit 26f6a2aefd3167a06ac0e9de1fb09b8900878eea gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6b6936b3a3cfc0c50bc2616b484bf513ae76a4b341a4bdec7929da0f2610ffc5
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock
representative crash: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock, types: [UNKNOWN]
# git bisect bad 26f6a2aefd3167a06ac0e9de1fb09b8900878eea
Bisecting: 7909 revisions left to test after this (roughly 13 steps)
[228dfe98a313f6b6bff5da8b2c5e650e297ebf1a] Merge tag 'char-misc-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

testing commit 228dfe98a313f6b6bff5da8b2c5e650e297ebf1a gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e44a1e0f0489628da3798b1d4c77ab0a4a8ac47d5946d5c6d4ec8a006bc50c13
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
representative crash: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock, types: [UNKNOWN]
# git bisect bad 228dfe98a313f6b6bff5da8b2c5e650e297ebf1a
Bisecting: 4724 revisions left to test after this (roughly 12 steps)
[526942b8134cc34d25d27f95dfff98b8ce2f6fcd] Merge tag 'ata-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata

testing commit 526942b8134cc34d25d27f95dfff98b8ce2f6fcd gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5e725048bf51823001364d37a08f2401cbbe55f72c5ba5bd626b7ad67eb00e11
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock
run #1: OK
run #2: OK
run #3: OK
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: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock, types: [UNKNOWN]
# git bisect bad 526942b8134cc34d25d27f95dfff98b8ce2f6fcd
Bisecting: 1601 revisions left to test after this (roughly 11 steps)
[2e7a95156d64667a8ded606829d57c6fc92e41df] Merge tag 'regmap-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

testing commit 2e7a95156d64667a8ded606829d57c6fc92e41df gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ecb79f62aea4cca81b7fb7f51ae6ef9ccff8415c33f90a95860793ee67c40e93
all runs: OK
false negative chance: 0.001
# git bisect good 2e7a95156d64667a8ded606829d57c6fc92e41df
Bisecting: 792 revisions left to test after this (roughly 10 steps)
[c013d0af81f60cc7dbe357c4e2a925fb6738dbfe] Merge tag 'for-5.20/block-2022-07-29' of git://git.kernel.dk/linux-block

testing commit c013d0af81f60cc7dbe357c4e2a925fb6738dbfe gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6ac99914d4afc65729a1c26ef42995cf83fce2f500bdd861ecbf404c7b156e70
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock
run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock
run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock
run #3: OK
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: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock, types: [UNKNOWN]
# git bisect bad c013d0af81f60cc7dbe357c4e2a925fb6738dbfe
Bisecting: 405 revisions left to test after this (roughly 9 steps)
[efb2883060afc79638bb1eb19e2c30e7f6c5a178] Merge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

testing commit efb2883060afc79638bb1eb19e2c30e7f6c5a178 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 4d0da5ded36e8ef5e16d7d4959fe50b026bb6f5d22f194528f2d33b9d01380d7
all runs: OK
false negative chance: 0.006
# git bisect good efb2883060afc79638bb1eb19e2c30e7f6c5a178
Bisecting: 202 revisions left to test after this (roughly 8 steps)
[cb309ae49da7a7c28f0051deea13970291134fac] io_uring/net: improve io_get_notif_slot types

testing commit cb309ae49da7a7c28f0051deea13970291134fac gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 910aec218800afeaa9aec5b19944139c9d2f677169806bc61c16ed1754cbcca5
run #0: OK
run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock
run #2: OK
run #3: OK
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: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock, types: [UNKNOWN]
# git bisect bad cb309ae49da7a7c28f0051deea13970291134fac
Bisecting: 101 revisions left to test after this (roughly 7 steps)
[ba3cdb6fbb6e8eb525c868c60e103c5711edc068] io_uring: improve task exit timeout cancellations

testing commit ba3cdb6fbb6e8eb525c868c60e103c5711edc068 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 052cfe390c3296ef2b85f8bcf7e4b4b35cdc5124f2989538eea8b1367e1c5637
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock
run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock
run #2: OK
run #3: OK
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: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock, types: [UNKNOWN]
# git bisect bad ba3cdb6fbb6e8eb525c868c60e103c5711edc068
Bisecting: 50 revisions left to test after this (roughly 6 steps)
[7aaff708a768144ec6459f0a58301be1a6b982fc] io_uring: move cancelation into its own file

testing commit 7aaff708a768144ec6459f0a58301be1a6b982fc gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 4b1bb73005fd1b12774719744a866f0274b36006a7514015231a4c3179ef97a1
all runs: OK
false negative chance: 0.080
# git bisect good 7aaff708a768144ec6459f0a58301be1a6b982fc
Bisecting: 25 revisions left to test after this (roughly 5 steps)
[1ab1edb0a104dd683d83e7853aa5b624856f4127] io_uring: pass poll_find lock back

testing commit 1ab1edb0a104dd683d83e7853aa5b624856f4127 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 392b8d7e5e7cbfbacbc59fa2213413cc9ee1fe915563d6d4f6fe21f9262b4ee8
all runs: OK
false negative chance: 0.080
# git bisect good 1ab1edb0a104dd683d83e7853aa5b624856f4127
Bisecting: 12 revisions left to test after this (roughly 4 steps)
[68494a65d0e2de3d99b28ae050971b6161eabac0] io_uring: introduce io_req_cqe_overflow()

testing commit 68494a65d0e2de3d99b28ae050971b6161eabac0 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6fbebf4ab72b301b5c62e9d44ddf91c4b0d8e0c70ea564e4e3dd465888b84bcd
run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock
run #1: OK
run #2: OK
run #3: OK
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: BUG: unable to handle kernel NULL pointer dereference in smc_tcp_syn_recv_sock, types: [UNKNOWN]
# git bisect bad 68494a65d0e2de3d99b28ae050971b6161eabac0
Bisecting: 6 revisions left to test after this (roughly 3 steps)
[a2cdd5193218c557b4ee7828017cce83f251e99a] io_uring: pass hash table into poll_find

reproducer is flaky (0.08 repro chance estimate)
revisions tested: 24, total time: 12h19m34.494882617s (build: 7h18m19.229785033s, test: 4h34m35.296386481s)
error: bisection is taking too long (>12h0m0s), aborting