ci starts bisection 2025-12-06 20:46:49.505285856 +0000 UTC m=+895599.030771981 bisecting fixing commit since dbb9a7ef347828870df3e5e6ddf19469a3277fc9 building syzkaller on f00eed24f2a1332b07fef1a353a439133978d97b ensuring issue is reproducible on original commit dbb9a7ef347828870df3e5e6ddf19469a3277fc9 testing commit dbb9a7ef347828870df3e5e6ddf19469a3277fc9 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: ad692a3568ac789d3e8934ba7ab00b1533e79ff03370f2c30af3570b3d806a66 all runs: crashed: general protection fault in smc_diag_dump_proto representative crash: general protection fault in smc_diag_dump_proto, types: [DoS] check whether we can drop unnecessary instrumentation disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan locking], they are not needed testing commit dbb9a7ef347828870df3e5e6ddf19469a3277fc9 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 0d082504f326d0c141fe89d510c5fb0f28b3f9a00c00e6e107102db7b3e64bc7 all runs: crashed: BUG: unable to handle kernel paging request in smc_diag_dump_proto representative crash: BUG: unable to handle kernel paging request in smc_diag_dump_proto, types: [MEMORY_SAFETY_BUG] the bug reproduces without the instrumentation disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed kconfig minimization: base=4116 full=8196 leaves diff=2161 split chunks (needed=false): <2161> split chunk #0 of len 2161 into 5 parts testing without sub-chunk 1/5 disabling configs for [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit dbb9a7ef347828870df3e5e6ddf19469a3277fc9 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 5131bf67caf9f60d37cc9c1001f9edf72b99cf3dfc3f4262fea7526eabea839f all runs: crashed: BUG: unable to handle kernel paging request in smc_diag_dump_proto representative crash: BUG: unable to handle kernel paging request in smc_diag_dump_proto, types: [MEMORY_SAFETY_BUG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed testing commit dbb9a7ef347828870df3e5e6ddf19469a3277fc9 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: bb96a2e416e0789a9b92f375e7ec377fb58122c821717a810f9faf3c30fd25e2 all runs: crashed: BUG: unable to handle kernel paging request in smc_diag_dump_proto representative crash: BUG: unable to handle kernel paging request in smc_diag_dump_proto, types: [MEMORY_SAFETY_BUG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing commit dbb9a7ef347828870df3e5e6ddf19469a3277fc9 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 2c425468de7dbb01acc900fa319b71442ad80496fd833962fb25fbbb721e01cb all runs: crashed: BUG: unable to handle kernel paging request in smc_diag_dump_proto representative crash: BUG: unable to handle kernel paging request in smc_diag_dump_proto, types: [MEMORY_SAFETY_BUG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit dbb9a7ef347828870df3e5e6ddf19469a3277fc9 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 576351537eaf699659a71955f3dbc9beafaf6dd8524e0b1f96bc5129a1d8fafb all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing commit dbb9a7ef347828870df3e5e6ddf19469a3277fc9 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: c0b67c0066e39c60220d4f0f737f1b06cfce5e3b19dbce6f7bf6f2c436624a0d all runs: crashed: BUG: unable to handle kernel paging request in smc_diag_dump_proto representative crash: BUG: unable to handle kernel paging request in smc_diag_dump_proto, types: [MEMORY_SAFETY_BUG] the chunk can be dropped minimized to 433 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_HAS_PTE_DEVMAP ATM AX25 BT BT_BREDR BT_HIDP BXT_WC_PMIC_OPREGION CFG80211 CMA CRYPTO_CTS DAX DLM DRM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_NVIDIA_SHIELD HID_PLAYSTATION HID_SENSOR_HUB HID_SMARTJOYPLUS HID_STEAM HID_THRUSTMASTER IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN INTEL_SCU_IPC INTEL_SOC_PMIC_BXTWC IP_SCTP L2TP LEDS_CLASS_MULTICOLOR LIBNVDIMM MAC80211 MCORE2 MEDIA_COMMON_OPTIONS MEDIA_DIGITAL_TV_SUPPORT MEDIA_PLATFORM_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_INTEL_PMC_BXT MFD_MT6360 MFD_MT6370 MFD_RETU MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 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 NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN NVIDIA_SHIELD_FF 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 PAGE_IDLE_FLAG PAGE_REPORTING PAHOLE_HAS_BTF_TAG 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 PLAYSTATION_FF PLFXLC PMIC_OPREGION PM_CLK PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOE_HASH_BITS_1 PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_NOTIFIERS PROC_CHILDREN PROC_PID_CPUSET PSAMPLE PSI PSTORE PSTORE_COMPRESS PTDUMP_CORE 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 RC_XBOX_DVD 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 REGMAP_SPI REGULATOR REGULATOR_FIXED_VOLTAGE 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 RPCSEC_GSS_KRB5_ENCTYPES_AES_SHA1 RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE SCREEN_INFO 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 SENSORS_AQUACOMPUTER_D5NEXT SENSORS_CORSAIR_CPRO SENSORS_CORSAIR_PSU SENSORS_GIGABYTE_WATERFORCE SENSORS_NZXT_KRAKEN2 SENSORS_NZXT_SMART2 SENSORS_POWERZ SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SKB_DECRYPTED SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS SMC SMC_DIAG SMSC_PHY SMS_SDIO_DRV SMS_SIANO_DEBUGFS 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_HDA_SCODEC_COMPONENT 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_UMP_CLIENT SND_SEQ_VIRMIDI SND_SOC SND_SOC_I2C_AND_SPI SND_SUPPORT_OLD_API SND_TIMER SND_UMP SND_UMP_LEGACY_RAWMIDI SND_USB SND_USB_6FIRE SND_USB_AUDIO SND_USB_AUDIO_MIDI_V2 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 SOUNDWIRE SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_LJCA SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_COMPILE_DECOMP_MULTI SQUASHFS_DECOMP_MULTI 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 STEAM_FF STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC SYSFB SYSFS_SYSCALL 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 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 TEE TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THERMAL_GOV_USER_SPACE THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE TMPFS_QUOTA TOOLS_SUPPORT_RELR 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_ANX7411 TYPEC_DP_ALTMODE TYPEC_FUSB302 TYPEC_HD3SS3220 TYPEC_MT6360 TYPEC_MUX_FSA4480 TYPEC_MUX_GPIO_SBU TYPEC_MUX_INTEL_PMC TYPEC_MUX_NB7VPQ904M TYPEC_MUX_PTN36502 TYPEC_MUX_WCD939X_USBSS TYPEC_NVIDIA_ALTMODE TYPEC_RT1711H TYPEC_RT1719 TYPEC_STUSB160X TYPEC_TCPCI TYPEC_TCPCI_MAXIM TYPEC_TCPCI_MT6370 TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI TYPEC_WCOVE TYPEC_WUSB3801 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 UCSI_CCG UCSI_STM32G0 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_CDNS2_UDC USB_CDNS3 USB_CDNS3_GADGET USB_CDNS3_HOST USB_CDNS_SUPPORT USB_DWC2 USB_GADGET USB_LJCA USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VXLAN WIRELESS WLAN WLAN_VENDOR_PURELIFI ZONE_DEVICE] disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed testing current HEAD 8f7aa3d3c7323f4ca2768a9e74ebbe359c4f8f88 testing commit 8f7aa3d3c7323f4ca2768a9e74ebbe359c4f8f88 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 775ab7cacb865dddf50a690add5f6a5c5dd11b5d515e0882c035c750552ecb05 all runs: OK false negative chance: 0.000 # git bisect start 8f7aa3d3c7323f4ca2768a9e74ebbe359c4f8f88 dbb9a7ef347828870df3e5e6ddf19469a3277fc9 Bisecting: 45710 revisions left to test after this (roughly 16 steps) [f1975e4765e5df2b91d400d4ac25c9243a25e92a] Merge tag 'sysctl-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl determine whether the revision contains the guilty commit revision dbb9a7ef347828870df3e5e6ddf19469a3277fc9 crashed and is reachable testing commit f1975e4765e5df2b91d400d4ac25c9243a25e92a gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 9f565ff9cfbfd8c33a273037bbfb1f76dde28ea624f84ed3eab3c4bef64b131c run #0: ignore: lost connection to test machine run #1: crashed: BUG: unable to handle kernel paging request in smc_diag_dump_proto run #2: crashed: BUG: unable to handle kernel paging request in smc_diag_dump_proto run #3: crashed: BUG: unable to handle kernel paging request in smc_diag_dump_proto run #4: crashed: BUG: unable to handle kernel paging request in smc_diag_dump_proto run #5: crashed: BUG: unable to handle kernel paging request in smc_diag_dump_proto run #6: crashed: BUG: unable to handle kernel paging request in smc_diag_dump_proto run #7: crashed: BUG: unable to handle kernel paging request in smc_diag_dump_proto run #8: crashed: BUG: unable to handle kernel paging request in smc_diag_dump_proto run #9: crashed: BUG: unable to handle kernel paging request in smc_diag_dump_proto representative crash: BUG: unable to handle kernel paging request in smc_diag_dump_proto, types: [MEMORY_SAFETY_BUG] # git bisect good f1975e4765e5df2b91d400d4ac25c9243a25e92a Bisecting: 22856 revisions left to test after this (roughly 15 steps) [b80a75cf6999fb79971b41eaec7af2bb4b514714] Merge tag 'hid-for-linus-2025073101' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid determine whether the revision contains the guilty commit revision dbb9a7ef347828870df3e5e6ddf19469a3277fc9 crashed and is reachable testing commit b80a75cf6999fb79971b41eaec7af2bb4b514714 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 3460b958b7684b2961dbd277e0df62086bd85c8d34fcf0c5388f8dcc289e90de all runs: crashed: general protection fault in smc_diag_dump_proto representative crash: general protection fault in smc_diag_dump_proto, types: [DoS] # git bisect good b80a75cf6999fb79971b41eaec7af2bb4b514714 Bisecting: 12088 revisions left to test after this (roughly 14 steps) [f79e772258df311c2cb21594ca0996318e720d28] Merge tag 'media/v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media determine whether the revision contains the guilty commit revision dbb9a7ef347828870df3e5e6ddf19469a3277fc9 crashed and is reachable testing commit f79e772258df311c2cb21594ca0996318e720d28 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 2565d01441040a686c0ceef6fb80983e87c2fcbf200f43d4373cec8b1f083815 all runs: crashed: general protection fault in smc_diag_dump_proto representative crash: general protection fault in smc_diag_dump_proto, types: [DoS] # git bisect good f79e772258df311c2cb21594ca0996318e720d28 Bisecting: 6045 revisions left to test after this (roughly 13 steps) [4f38da1f027ea2c9f01bb71daa7a299c191b6940] spi: Merge up v6.18-rc1 determine whether the revision contains the guilty commit revision dbb9a7ef347828870df3e5e6ddf19469a3277fc9 crashed and is reachable testing commit 4f38da1f027ea2c9f01bb71daa7a299c191b6940 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 98e1c97be618f0c22863ff9a1db1257c923b05883c5991254f9b4e604390eec2 all runs: OK false negative chance: 0.000 # git bisect bad 4f38da1f027ea2c9f01bb71daa7a299c191b6940 Bisecting: 2996 revisions left to test after this (roughly 12 steps) [674b0ddb7586a192612442c3aed9cf523faeed7a] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi determine whether the revision contains the guilty commit revision f79e772258df311c2cb21594ca0996318e720d28 crashed and is reachable testing commit 674b0ddb7586a192612442c3aed9cf523faeed7a gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: f4d24f065599b1ae92c4ca3ec75adcfabf64fba78e5999c9ff710448f67697c4 all runs: OK false negative chance: 0.000 # git bisect bad 674b0ddb7586a192612442c3aed9cf523faeed7a Bisecting: 1515 revisions left to test after this (roughly 11 steps) [bb9a242ce58e00da802d9ae49643f7271be9c99e] Merge tag 'linux-can-next-for-6.18-20250924' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next determine whether the revision contains the guilty commit revision dbb9a7ef347828870df3e5e6ddf19469a3277fc9 crashed and is reachable testing commit bb9a242ce58e00da802d9ae49643f7271be9c99e gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 473cd3eb3c373e75b0c9a723b54a3d9744c71d946ab00ff35b9a54ead5bd7cf7 all runs: OK false negative chance: 0.000 # git bisect bad bb9a242ce58e00da802d9ae49643f7271be9c99e Bisecting: 727 revisions left to test after this (roughly 10 steps) [d103f26a5c8599385acb2d2e01dfbaedb00fdc0a] Merge tag 'wireless-next-2025-09-11' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next determine whether the revision contains the guilty commit revision dbb9a7ef347828870df3e5e6ddf19469a3277fc9 crashed and is reachable testing commit d103f26a5c8599385acb2d2e01dfbaedb00fdc0a gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: f79a56652bc4273c0bb4126135c467602332d2b578b504fb9ef6c1a0d7a8b40a all runs: crashed: general protection fault in smc_diag_dump_proto representative crash: general protection fault in smc_diag_dump_proto, types: [DoS] # git bisect good d103f26a5c8599385acb2d2e01dfbaedb00fdc0a Bisecting: 363 revisions left to test after this (roughly 9 steps) [6445bb832dc0ba0ab816e5bd79ef0209cdd46d3a] tcp: Remove osk from __inet_hash() arg. determine whether the revision contains the guilty commit revision d103f26a5c8599385acb2d2e01dfbaedb00fdc0a crashed and is reachable testing commit 6445bb832dc0ba0ab816e5bd79ef0209cdd46d3a gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 0a828727debb6f67ccf00b0add238964443aa4776ad997a7585dfc6b5a9dc202 run #0: crashed: general protection fault in smc_diag_dump_proto run #1: crashed: general protection fault in smc_diag_dump_proto run #2: ignore: lost connection to test machine run #3: ignore: lost connection to test machine run #4: crashed: general protection fault in smc_diag_dump_proto run #5: crashed: general protection fault in smc_diag_dump_proto run #6: crashed: general protection fault in smc_diag_dump_proto run #7: crashed: general protection fault in smc_diag_dump_proto run #8: crashed: general protection fault in smc_diag_dump_proto run #9: crashed: general protection fault in smc_diag_dump_proto representative crash: general protection fault in smc_diag_dump_proto, types: [DoS] # git bisect good 6445bb832dc0ba0ab816e5bd79ef0209cdd46d3a Bisecting: 193 revisions left to test after this (roughly 8 steps) [56d9de46715245c9cc46dbe16830e431056abbc3] wifi: libertas: add WQ_UNBOUND to alloc_workqueue users determine whether the revision contains the guilty commit revision b80a75cf6999fb79971b41eaec7af2bb4b514714 crashed and is reachable testing commit 56d9de46715245c9cc46dbe16830e431056abbc3 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: d8ff5051ad21e5d5294acefc42a5d8b4fa5880ee0051160b5753f09e4a27dc48 all runs: crashed: general protection fault in smc_diag_dump_proto representative crash: general protection fault in smc_diag_dump_proto, types: [DoS] # git bisect good 56d9de46715245c9cc46dbe16830e431056abbc3 Bisecting: 96 revisions left to test after this (roughly 7 steps) [c5ba345b2d358b07cc4f07253ba1ada73e77d586] netfilter: nf_conntrack: do not skip entries in /proc/net/nf_conntrack determine whether the revision contains the guilty commit revision d103f26a5c8599385acb2d2e01dfbaedb00fdc0a crashed and is reachable testing commit c5ba345b2d358b07cc4f07253ba1ada73e77d586 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: a4fc16133dc2aee641f9b41681110e5714fe8e9307e1aa76b064f5e40131303d all runs: OK false negative chance: 0.000 # git bisect bad c5ba345b2d358b07cc4f07253ba1ada73e77d586 Bisecting: 48 revisions left to test after this (roughly 6 steps) [2fe6e77c9f8f11c12a08741092f5662193f5a86f] bng_en: Allocate packet buffers determine whether the revision contains the guilty commit revision 6445bb832dc0ba0ab816e5bd79ef0209cdd46d3a crashed and is reachable testing commit 2fe6e77c9f8f11c12a08741092f5662193f5a86f gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: e9ec3ae00a2f9a9de93dd9d3f90111da51a4ee3ac8c7743a0d67f69f23107f44 all runs: crashed: general protection fault in smc_diag_dump_proto representative crash: general protection fault in smc_diag_dump_proto, types: [DoS] # git bisect good 2fe6e77c9f8f11c12a08741092f5662193f5a86f Bisecting: 24 revisions left to test after this (roughly 5 steps) [69baaac9361edd169713562f088829a1be9c51a9] dibs: Define dibs_client_ops and dibs_dev_ops determine whether the revision contains the guilty commit revision dbb9a7ef347828870df3e5e6ddf19469a3277fc9 crashed and is reachable testing commit 69baaac9361edd169713562f088829a1be9c51a9 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 22d9bedda6338a58392180fdb58e30ce70b04addb6f5c48c573ee791be58d1d5 all runs: OK false negative chance: 0.000 # git bisect bad 69baaac9361edd169713562f088829a1be9c51a9 Bisecting: 11 revisions left to test after this (roughly 4 steps) [31c4511bbb0c75c525b6e4f4fe4167f2e9d3b05c] tcp: move mtu_info to remove two 32bit holes determine whether the revision contains the guilty commit revision d103f26a5c8599385acb2d2e01dfbaedb00fdc0a crashed and is reachable testing commit 31c4511bbb0c75c525b6e4f4fe4167f2e9d3b05c gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: c07e47ba9bbb101b9ee94801a666fb2a2835c475e7ae1453ce9a0747b7a1e974 all runs: crashed: general protection fault in smc_diag_dump_proto representative crash: general protection fault in smc_diag_dump_proto, types: [DoS] # git bisect good 31c4511bbb0c75c525b6e4f4fe4167f2e9d3b05c Bisecting: 5 revisions left to test after this (roughly 3 steps) [884eee8e43f3072db4111178c98b9aa5c57bcf92] net/smc: Remove error handling of unregister_dmb() determine whether the revision contains the guilty commit revision dbb9a7ef347828870df3e5e6ddf19469a3277fc9 crashed and is reachable testing commit 884eee8e43f3072db4111178c98b9aa5c57bcf92 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: ff3f725a8af3f3f0a07709c36957d01b7ea6ab3fc54696be7865502c1e8c0abb all runs: crashed: general protection fault in smc_diag_dump_proto representative crash: general protection fault in smc_diag_dump_proto, types: [DoS] # git bisect good 884eee8e43f3072db4111178c98b9aa5c57bcf92 Bisecting: 2 revisions left to test after this (roughly 2 steps) [d324a2ca3f8efd57f5839aa2690554a5cbb3586f] dibs: Register smc as dibs_client determine whether the revision contains the guilty commit revision 31c4511bbb0c75c525b6e4f4fe4167f2e9d3b05c crashed and is reachable testing commit d324a2ca3f8efd57f5839aa2690554a5cbb3586f gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 41fc5d0e130146591dac5e45233cfffe128f433b08525c248cd1c35ede69056e all runs: OK false negative chance: 0.000 # git bisect bad d324a2ca3f8efd57f5839aa2690554a5cbb3586f Bisecting: 0 revisions left to test after this (roughly 1 step) [35758b0032c056cdff3e8f5a70669cb3e2c8d0e4] dibs: Create drivers/dibs determine whether the revision contains the guilty commit revision 6445bb832dc0ba0ab816e5bd79ef0209cdd46d3a crashed and is reachable testing commit 35758b0032c056cdff3e8f5a70669cb3e2c8d0e4 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 7d62ad1b9ad99855dd2792a4a2e730d5609425dfcd98ec6dae3c781bbe153eba run #0: ignore: lost connection to test machine run #1: crashed: general protection fault in smc_diag_dump_proto run #2: crashed: general protection fault in smc_diag_dump_proto run #3: crashed: general protection fault in smc_diag_dump_proto run #4: crashed: general protection fault in smc_diag_dump_proto run #5: crashed: general protection fault in smc_diag_dump_proto run #6: crashed: general protection fault in smc_diag_dump_proto run #7: crashed: general protection fault in smc_diag_dump_proto run #8: crashed: general protection fault in smc_diag_dump_proto run #9: crashed: general protection fault in smc_diag_dump_proto representative crash: general protection fault in smc_diag_dump_proto, types: [DoS] # git bisect good 35758b0032c056cdff3e8f5a70669cb3e2c8d0e4 d324a2ca3f8efd57f5839aa2690554a5cbb3586f is the first bad commit commit d324a2ca3f8efd57f5839aa2690554a5cbb3586f Author: Alexandra Winter Date: Thu Sep 18 13:04:50 2025 +0200 dibs: Register smc as dibs_client Formally register smc as dibs client. Functionality will be moved by follow-on patches from ism_client to dibs_client until eventually ism_client can be removed. As DIBS is only a shim layer without any dependencies, we can depend SMC on DIBS without adding indirect dependencies. A follow-on patch will remove dependency of SMC on ISM. Signed-off-by: Alexandra Winter Reviewed-by: Julian Ruess Link: https://patch.msgid.link/20250918110500.1731261-5-wintera@linux.ibm.com Signed-off-by: Paolo Abeni arch/s390/configs/debug_defconfig | 1 + arch/s390/configs/defconfig | 1 + drivers/dibs/dibs_main.c | 35 +++++++++++++++++++++++++++++++++++ include/linux/dibs.h | 23 +++++++++++++++++++++++ net/smc/Kconfig | 2 +- net/smc/smc_ism.c | 6 ++++++ 6 files changed, 67 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: 41fc5d0e130146591dac5e45233cfffe128f433b08525c248cd1c35ede69056e parent signature: 7d62ad1b9ad99855dd2792a4a2e730d5609425dfcd98ec6dae3c781bbe153eba revisions tested: 24, total time: 7h41m56.9512179s (build: 3h22m54.287977495s, test: 3h46m47.891104263s) first good commit: d324a2ca3f8efd57f5839aa2690554a5cbb3586f dibs: Register smc as dibs_client recipients (to): ["julianr@linux.ibm.com" "pabeni@redhat.com" "wintera@linux.ibm.com"] recipients (cc): []