ci2 starts bisection 2023-09-28 08:38:06.581590591 +0000 UTC m=+20097.918918145 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: possible deadlock in blocking_notifier_call_chain run #1: crashed: possible deadlock in hugetlbfs_file_mmap run #2: crashed: possible deadlock in blocking_notifier_call_chain run #3: crashed: possible deadlock in hugetlbfs_file_mmap run #4: crashed: possible deadlock in blocking_notifier_call_chain run #5: crashed: possible deadlock in blocking_notifier_call_chain run #6: crashed: possible deadlock in blocking_notifier_call_chain run #7: crashed: possible deadlock in blocking_notifier_call_chain run #8: crashed: possible deadlock in blocking_notifier_call_chain run #9: crashed: possible deadlock in blocking_notifier_call_chain run #10: crashed: possible deadlock in hugetlbfs_file_mmap run #11: crashed: possible deadlock in hugetlbfs_file_mmap run #12: crashed: possible deadlock in blocking_notifier_call_chain run #13: crashed: possible deadlock in blocking_notifier_call_chain run #14: crashed: possible deadlock in blocking_notifier_call_chain run #15: crashed: possible deadlock in blocking_notifier_call_chain run #16: crashed: possible deadlock in blocking_notifier_call_chain run #17: crashed: possible deadlock in blocking_notifier_call_chain run #18: crashed: possible deadlock in blocking_notifier_call_chain run #19: crashed: possible deadlock in hugetlbfs_file_mmap representative crash: possible deadlock in blocking_notifier_call_chain, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN BUG KASAN 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: 8929d8eab065592e8ca824cc00d5164102cac8f0f7d903c1ee0fc186fdef49b0 all runs: crashed: possible deadlock in hugetlbfs_file_mmap representative crash: possible deadlock in hugetlbfs_file_mmap, 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=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 [HANG LEAK UBSAN BUG KASAN 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: 5b7962bda14dcf8d199b2e957f2f522d92536c1eded53cc52da1bea528c3c31b all runs: crashed: possible deadlock in hugetlbfs_file_mmap representative crash: possible deadlock in hugetlbfs_file_mmap, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], 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: a61433e8cfa14dc27b82d673f1d02fa50f911aee82d1e03f3d29e5b720ffd8ef all runs: OK false negative chance: 0.000 testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN 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: ea55930606f0618cd6407e35bed33f81800374255446fb7eff6fd6a514dbac42 all runs: crashed: possible deadlock in hugetlbfs_file_mmap representative crash: possible deadlock in hugetlbfs_file_mmap, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN BUG KASAN 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: 9e1c16bbea3a13b36d5e23d1c1f27a0273abaf18bcd1b8f37d582524d35bc89c all runs: crashed: possible deadlock in hugetlbfs_file_mmap representative crash: possible deadlock in hugetlbfs_file_mmap, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG 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: 4f6b09f3cc39507675730f361dcfa66ceff26bfd427f989354479b1a87e28309 all runs: crashed: possible deadlock in hugetlbfs_file_mmap representative crash: possible deadlock in hugetlbfs_file_mmap, types: [LOCKDEP] the chunk can be dropped minimized to 396 configs; suspects: [6LOWPAN ACPI_WMI ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI CMA DAX_DRIVER DLM DRM DRM_BRIDGE DRM_FBDEV_EMULATION DRM_MIPI_DSI DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_ORIENTATION_QUIRKS DRM_SIMPLEDRM DRM_TTM DRM_TTM_HELPER DRM_UDL DRM_VGEM DRM_VIRTIO_GPU DRM_VKMS DRM_VMWGFX DRM_VMWGFX_FBCON DRM_VRAM_HELPER DUMMY DVB_AF9013 DVB_AF9033 DVB_AS102 DVB_AS102_FE DVB_B2C2_FLEXCOP DVB_B2C2_FLEXCOP_USB DVB_CORE DVB_DIB3000MB DVB_DIB3000MC DVB_EC100 DVB_GP8PSK_FE DVB_RTL2830 DVB_RTL2832 DVB_RTL2832_SDR DVB_TEST_DRIVERS DVB_TTUSB_BUDGET DVB_TTUSB_DEC DVB_USB DVB_USB_A800 DVB_USB_AF9005 DVB_USB_AF9005_REMOTE DVB_USB_AF9015 DVB_USB_AF9035 DVB_USB_ANYSEE DVB_USB_AU6610 DVB_USB_AZ6007 DVB_USB_AZ6027 DVB_USB_CE6230 DVB_USB_CINERGY_T2 DVB_USB_CXUSB DVB_USB_DIB0700 DVB_USB_DIB3000MC DVB_USB_DIBUSB_MB DVB_USB_DIBUSB_MC DVB_USB_DIGITV DVB_USB_DTT200U DVB_USB_DTV5100 DVB_USB_DVBSKY DVB_USB_DW2102 DVB_USB_EC168 DVB_USB_GL861 DVB_USB_GP8PSK DVB_USB_LME2510 DVB_USB_M920X DVB_USB_MXL111SF DVB_USB_NOVA_T_USB2 DVB_USB_OPERA1 DVB_USB_PCTV452E DVB_USB_RTL28XXU DVB_USB_TECHNISAT_USB2 DVB_USB_TTUSB2 DVB_USB_UMT_010 DVB_USB_V2 DVB_USB_VP702X DVB_USB_VP7045 DVB_USB_ZD1301 DVB_VIDTV DVB_ZL10353 ECRYPT_FS ECRYPT_FS_MESSAGING EDAC EEPROM_93CX6 EFS_FS ENCRYPTED_KEYS EQUALIZER EROFS_FS EROFS_FS_POSIX_ACL EROFS_FS_SECURITY EROFS_FS_XATTR EROFS_FS_ZIP EVM EVM_ADD_XATTRS EVM_ATTR_FSUUID EXFAT_FS EXPORTFS_BLOCK_OPS EXT3_FS EXT3_FS_POSIX_ACL EXT3_FS_SECURITY F2FS_CHECK_FS F2FS_FAULT_INJECTION F2FS_FS F2FS_FS_COMPRESSION F2FS_FS_LZ4 F2FS_FS_LZ4HC F2FS_FS_LZO F2FS_FS_LZORLE F2FS_FS_POSIX_ACL F2FS_FS_SECURITY F2FS_FS_XATTR F2FS_FS_ZSTD F2FS_STAT_FS FANOTIFY FANOTIFY_ACCESS_PERMISSIONS FB FB_BOOT_VESA_SUPPORT FB_CFB_COPYAREA FB_CFB_FILLRECT FB_CFB_IMAGEBLIT FB_CMDLINE FB_DEFERRED_IO FB_NOTIFY FB_SYS_COPYAREA FB_SYS_FILLRECT FB_SYS_FOPS FB_SYS_IMAGEBLIT FB_TILEBLITTING FB_VESA FB_VGA16 FB_VIRTUAL FDDI FIREWIRE FIREWIRE_NET FIREWIRE_OHCI FIREWIRE_SBP2 FONT_8x16 FONT_8x8 FONT_SUPPORT FRAMEBUFFER_CONSOLE FRAMEBUFFER_CONSOLE_DETECT_PRIMARY FRAMEBUFFER_CONSOLE_ROTATION FS_DAX FS_DAX_PMD FS_ENCRYPTION FS_ENCRYPTION_ALGS FS_VERITY FS_VERITY_BUILTIN_SIGNATURES FTL FUSE_DAX FUSE_FS FW_LOADER_COMPRESS FW_LOADER_PAGED_BUF FW_LOADER_USER_HELPER FW_LOADER_USER_HELPER_FALLBACK GACT_PROB GARP GENERIC_PHY GFS2_FS GFS2_FS_LOCKING_DLM GOOGLE_COREBOOT_TABLE GOOGLE_FIRMWARE GOOGLE_MEMCONSOLE GOOGLE_MEMCONSOLE_COREBOOT GOOGLE_VPD GPIOLIB GPIOLIB_IRQCHIP GPIO_ACPI GPIO_DLN2 GPIO_VIPERBOARD GREENASIA_FF GREYBUS GREYBUS_BRIDGED_PHY GREYBUS_ES2 GREYBUS_HID GREYBUS_USB GTP GVE HAVE_ARCH_USERFAULTFD_MINOR HAVE_ARCH_USERFAULTFD_WP HAVE_BOOTMEM_INFO_NODE HAVE_KVM_CPU_RELAX_INTERCEPT HAVE_KVM_EVENTFD HAVE_KVM_IRQCHIP HAVE_KVM_IRQFD HAVE_KVM_IRQ_BYPASS HAVE_KVM_IRQ_ROUTING HAVE_KVM_MSI HAVE_KVM_NO_POLL HAVE_KVM_PM_NOTIFIER HAVE_SCHED_AVG_IRQ HDLC HDLC_CISCO HDLC_FR HDLC_PPP HDLC_RAW HDLC_RAW_ETH HDLC_X25 HDMI HFSPLUS_FS HFS_FS HID_ACCUTOUCH HID_ACRUX HID_ACRUX_FF HID_ALPS HID_APPLEIR HID_ASUS HID_AUREAL HID_BATTERY_STRENGTH HID_BETOP_FF HID_CMEDIA HID_CORSAIR HID_CP2112 HID_ELECOM HID_ELO HID_EMS_FF HID_GEMBIRD HID_GFRM HID_GREENASIA HID_GT683R HID_HOLTEK HID_ICADE HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_LOGITECH_DJ HID_LOGITECH_HIDPP HID_MAGICMOUSE HID_MAYFLASH HID_MULTITOUCH HID_NTI HID_ORTEK HID_PENMOUNT HID_PICOLCD HID_PICOLCD_BACKLIGHT HID_PICOLCD_CIR HID_PICOLCD_FB HID_PICOLCD_LCD HID_PICOLCD_LEDS HID_PLANTRONICS HID_PRIMAX HID_PRODIKEYS HID_RETRODE HID_RMI HID_ROCCAT HID_SAITEK HID_SENSOR_ACCEL_3D HID_SENSOR_ALS HID_SENSOR_CUSTOM_SENSOR HID_SENSOR_DEVICE_ROTATION HID_SENSOR_GYRO_3D HID_SENSOR_HUB HID_SENSOR_HUMIDITY HID_SENSOR_IIO_COMMON HID_SENSOR_IIO_TRIGGER HID_SENSOR_INCLINOMETER_3D HID_SENSOR_MAGNETOMETER_3D HID_SENSOR_PRESS HID_SENSOR_PROX HID_SENSOR_TEMP HID_SPEEDLINK HID_STEELSERIES HID_THINGM HID_TIVO HID_TWINHAN HID_UCLOGIC HID_UDRAW_PS3 HID_WACOM HID_WALTOP HID_WIIMOTE HID_XINMO HID_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPET_MMAP HPET_MMAP_DEFAULT HPFS_FS I2C_ALGOBIT I2C_CHARDEV I2C_DIOLAN_U2C I2C_DLN2 I2C_MUX I2C_MUX_REG I2C_ROBOTFUZZ_OSIF I2C_SI4713 I2C_SLAVE I2C_SLAVE_EEPROM I2C_TINY_USB I2C_VIPERBOARD IEEE802154 IEEE802154_6LOWPAN IEEE802154_ATUSB IEEE802154_DRIVERS IEEE802154_HWSIM IEEE802154_NL802154_EXPERIMENTAL IEEE802154_SOCKET IFB IIO IIO_BUFFER IIO_KFIFO_BUF IIO_TRIGGER IIO_TRIGGERED_BUFFER IKCONFIG IKCONFIG_PROC IMA IMA_APPRAISE IMA_APPRAISE_MODSIG IMA_DEFAULT_HASH_SHA256 IMA_LSM_RULES IMA_MEASURE_ASYMMETRIC_KEYS IMA_NG_TEMPLATE IMA_QUEUE_EARLY_BOOT_KEYS IMA_READ_POLICY IMA_WRITE_POLICY INET6_ESPINTCP INET6_ESP_OFFLOAD INET6_IPCOMP INET6_TUNNEL INET6_XFRM_TUNNEL INET_AH INET_DCCP_DIAG INET_DIAG INET_DIAG_DESTROY INET_ESP INET_ESPINTCP INET_ESP_OFFLOAD INET_IPCOMP INET_MPTCP_DIAG INET_RAW_DIAG INET_SCTP_DIAG INET_TCP_DIAG INET_UDP_DIAG INET_XFRM_TUNNEL INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_ADDR_TRANS_CONFIGFS INFINIBAND_IPOIB INFINIBAND_IPOIB_CM INFINIBAND_IPOIB_DEBUG INFINIBAND_ISER INFINIBAND_ON_DEMAND_PAGING INFINIBAND_RTRS INFINIBAND_SRP INFINIBAND_USER_ACCESS INFINIBAND_USER_MAD INFINIBAND_USER_MEM INPUT_ATI_REMOTE2 INPUT_CM109 INPUT_IMS_PCU INPUT_JOYDEV INPUT_KEYSPAN_REMOTE INPUT_LEDS INPUT_MOUSEDEV INPUT_MOUSEDEV_PSAUX INPUT_POWERMATE INPUT_UINPUT INPUT_YEALINK INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_AUDIT INTEGRITY_SIGNATURE INTEGRITY_TRUSTED_KEYRING INTERVAL_TREE IP6_NF_MATCH_AH IP6_NF_MATCH_EUI64 IP6_NF_MATCH_FRAG IP6_NF_MATCH_HL IP6_NF_MATCH_MH IP6_NF_MATCH_OPTS IP6_NF_MATCH_RPFILTER IP6_NF_MATCH_RT IP6_NF_MATCH_SRH IP6_NF_NAT IP6_NF_RAW IP6_NF_SECURITY IP6_NF_TARGET_HL IP6_NF_TARGET_MASQUERADE IP6_NF_TARGET_NPT IP6_NF_TARGET_SYNPROXY IPV6_FOU IPV6_FOU_TUNNEL IPV6_GRE IPV6_ILA IPV6_MIP6 IPV6_MROUTE IPV6_MROUTE_MULTIPLE_TABLES IPV6_MULTIPLE_TABLES IPV6_OPTIMISTIC_DAD IPV6_PIMSM_V2 IPV6_ROUTER_PREF IPV6_ROUTE_INFO IPV6_RPL_LWTUNNEL IPV6_SEG6_BPF IPV6_SEG6_HMAC IPV6_SEG6_LWTUNNEL IPV6_SIT_6RD IPV6_SUBTREES IPV6_TUNNEL IPV6_VTI IPVLAN IPVLAN_L3S IPVTAP IP_DCCP IP_DCCP_CCID3 IP_DCCP_TFRC_LIB IP_FIB_TRIE_STATS IP_MROUTE_MULTIPLE_TABLES IP_NF_ARPFILTER IP_NF_ARPTABLES IP_NF_ARP_MANGLE IP_NF_MATCH_AH IP_NF_MATCH_ECN IP_NF_MATCH_RPFILTER IP_NF_MATCH_TTL IP_NF_RAW IP_NF_SECURITY IP_NF_TARGET_CLUSTERIP IP_NF_TARGET_ECN IP_NF_TARGET_NETMAP IP_NF_TARGET_REDIRECT IP_NF_TARGET_SYNPROXY IP_NF_TARGET_TTL IP_ROUTE_CLASSID IP_SCTP IP_SET IP_SET_BITMAP_IP IP_SET_BITMAP_IPMAC IP_SET_BITMAP_PORT IP_SET_HASH_IP IP_SET_HASH_IPMAC IP_SET_HASH_IPMARK IP_SET_HASH_IPPORT IP_SET_HASH_IPPORTIP IP_SET_HASH_IPPORTNET IP_SET_HASH_MAC IP_SET_HASH_NET IP_SET_HASH_NETIFACE IP_SET_HASH_NETNET IP_SET_HASH_NETPORT IP_SET_HASH_NETPORTNET IP_SET_LIST_SET IP_VS IP_VS_DH IP_VS_FO IP_VS_FTP IP_VS_IPV6 IP_VS_LBLC IP_VS_LBLCR IP_VS_LC IP_VS_MH IP_VS_NFCT IP_VS_NQ IP_VS_OVF IP_VS_PE_SIP IP_VS_PROTO_AH IP_VS_PROTO_AH_ESP IP_VS_PROTO_ESP IP_VS_PROTO_SCTP IP_VS_PROTO_TCP IP_VS_PROTO_UDP IP_VS_RR IP_VS_SED IP_VS_SH IP_VS_TWOS IP_VS_WLC IP_VS_WRR IRQ_BYPASS_MANAGER IRQ_POLL IRQ_TIME_ACCOUNTING IR_IGORPLUGUSB IR_IGUANA IR_IMON IR_MCEUSB IR_REDRAT3 IR_STREAMZAP IR_TTUSBIR ISDN ISDN_CAPI_MIDDLEWARE JFFS2_CMODE_PRIORITY JFFS2_COMPRESSION_OPTIONS JFFS2_FS JFFS2_FS_POSIX_ACL JFFS2_FS_XATTR LAPB LCD_CLASS_DEVICE MAC802154 MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_VIPERBOARD MPTCP MTD NETFILTER_ADVANCED NET_ACT_GACT NET_ACT_MIRRED NET_IPGRE_DEMUX NFT_FWD_NETDEV NF_TABLES NF_TABLES_NETDEV RADIO_ADAPTERS RADIO_SI4713 RAS RC_CORE RC_DEVICES RFKILL SND SOUND STAGING TRANSPARENT_HUGEPAGE VIDEO_DEV VIDEO_V4L2 VIRTIO_FS WAN ZONE_DEVICE] disabling configs for [LEAK UBSAN BUG KASAN ATOMIC_SLEEP HANG], they are not needed testing current HEAD b911329317b4218e63baf78f3f422efbaa7198ed testing commit b911329317b4218e63baf78f3f422efbaa7198ed gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 81d96b03f8ba7970acf6619621a82916535bb15955dac473f4d0aa4e232e05df all runs: OK false negative chance: 0.000 # git bisect start b911329317b4218e63baf78f3f422efbaa7198ed c957cbb8731536ddc9a01e4c1cd51eab6558aa14 Bisecting: 1759 revisions left to test after this (roughly 11 steps) [019f013e8b92360b0ce4d0ca3e73bdf63c50a542] drm/bridge: tc358768: fix THS_TRAILCNT computation determine whether the revision contains the guilty commit revision c957cbb8731536ddc9a01e4c1cd51eab6558aa14 crashed and is reachable testing commit 019f013e8b92360b0ce4d0ca3e73bdf63c50a542 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ac00e51d7706fa800321cb3d59f37fede81691bb2710466ec07ff5f10394088f all runs: crashed: possible deadlock in hugetlbfs_file_mmap representative crash: possible deadlock in hugetlbfs_file_mmap, types: [LOCKDEP] # git bisect good 019f013e8b92360b0ce4d0ca3e73bdf63c50a542 Bisecting: 879 revisions left to test after this (roughly 10 steps) [c597d8cb0d33462e449d7be345330e980abc035b] timers/nohz: Last resort update jiffies on nohz_full IRQ entry determine whether the revision contains the guilty commit revision 019f013e8b92360b0ce4d0ca3e73bdf63c50a542 crashed and is reachable testing commit c597d8cb0d33462e449d7be345330e980abc035b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 82a5f90383af78b94c48e6f75017f3bd8e85f8aff0432db3fd317f363c28c9ec all runs: crashed: possible deadlock in hugetlbfs_file_mmap representative crash: possible deadlock in hugetlbfs_file_mmap, types: [LOCKDEP] # git bisect good c597d8cb0d33462e449d7be345330e980abc035b Bisecting: 439 revisions left to test after this (roughly 9 steps) [b7b0c48851c45be7280f1022bb131096c014bfa5] ima: Remove deprecated IMA_TRUSTED_KEYRING Kconfig determine whether the revision contains the guilty commit revision 019f013e8b92360b0ce4d0ca3e73bdf63c50a542 crashed and is reachable testing commit b7b0c48851c45be7280f1022bb131096c014bfa5 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0686d5b258a127c6e32e33b869c52905efe5a0ecbef85b971ad2dd18b7af1fad all runs: OK false negative chance: 0.000 # git bisect bad b7b0c48851c45be7280f1022bb131096c014bfa5 Bisecting: 219 revisions left to test after this (roughly 8 steps) [930f3f164964ea823e1fa342d6744d5caec20fd9] drm/i915: Fix premature release of request's reusable memory determine whether the revision contains the guilty commit revision c597d8cb0d33462e449d7be345330e980abc035b crashed and is reachable testing commit 930f3f164964ea823e1fa342d6744d5caec20fd9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8572888aa5c1b47e4bf4101c9d058244468415bbfa0414808abee78dc4932273 all runs: OK false negative chance: 0.000 # git bisect bad 930f3f164964ea823e1fa342d6744d5caec20fd9 Bisecting: 109 revisions left to test after this (roughly 7 steps) [cc3f194f46e72c83b4357b2a50dbd1de676c8727] ALSA: usb-audio: Add support for Mythware XA001AU capture and playback interfaces. determine whether the revision contains the guilty commit revision c597d8cb0d33462e449d7be345330e980abc035b crashed and is reachable testing commit cc3f194f46e72c83b4357b2a50dbd1de676c8727 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d1e35a85908f4cda2cd7e1d6766434d02bfe6e299f779b3457700761f117ce84 all runs: crashed: possible deadlock in hugetlbfs_file_mmap representative crash: possible deadlock in hugetlbfs_file_mmap, types: [LOCKDEP] # git bisect good cc3f194f46e72c83b4357b2a50dbd1de676c8727 Bisecting: 54 revisions left to test after this (roughly 6 steps) [ef748360ba9168ccfc199693f03d884682224ea6] tracing: Fix cpu buffers unavailable due to 'record_disabled' missed determine whether the revision contains the guilty commit revision c597d8cb0d33462e449d7be345330e980abc035b crashed and is reachable testing commit ef748360ba9168ccfc199693f03d884682224ea6 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3184e2b3f051c2d0f5723e518621488c8c9f61355966222b879b30ebdadbb6c3 all runs: crashed: possible deadlock in hugetlbfs_file_mmap representative crash: possible deadlock in hugetlbfs_file_mmap, types: [LOCKDEP] # git bisect good ef748360ba9168ccfc199693f03d884682224ea6 Bisecting: 27 revisions left to test after this (roughly 5 steps) [bd1697e122306a07e7a44344b385423265d88508] NFS: Fix a use after free in nfs_direct_join_group() determine whether the revision contains the guilty commit revision ef748360ba9168ccfc199693f03d884682224ea6 crashed and is reachable testing commit bd1697e122306a07e7a44344b385423265d88508 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4cd03d27e8761265d8c64430bbe0fbee107c0aad4808d3f2c17936bba873ebfb all runs: crashed: possible deadlock in hugetlbfs_file_mmap representative crash: possible deadlock in hugetlbfs_file_mmap, types: [LOCKDEP] # git bisect good bd1697e122306a07e7a44344b385423265d88508 Bisecting: 13 revisions left to test after this (roughly 4 steps) [b53ed415163e643e8795cf97a229d7f46444f253] PCI: acpiphp: Use pci_assign_unassigned_bridge_resources() only for non-root bus determine whether the revision contains the guilty commit revision bd1697e122306a07e7a44344b385423265d88508 crashed and is reachable testing commit b53ed415163e643e8795cf97a229d7f46444f253 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4cd03d27e8761265d8c64430bbe0fbee107c0aad4808d3f2c17936bba873ebfb all runs: crashed: possible deadlock in hugetlbfs_file_mmap representative crash: possible deadlock in hugetlbfs_file_mmap, types: [LOCKDEP] # git bisect good b53ed415163e643e8795cf97a229d7f46444f253 Bisecting: 6 revisions left to test after this (roughly 3 steps) [78efab71a6493fc71ff188c855c2d15f6e1211ef] torture: Fix hang during kthread shutdown phase determine whether the revision contains the guilty commit revision c957cbb8731536ddc9a01e4c1cd51eab6558aa14 crashed and is reachable testing commit 78efab71a6493fc71ff188c855c2d15f6e1211ef gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 35b473ba6c66bf729c477ab5c07ce0fbb950bf71cd76411c41b72906ede27226 all runs: crashed: possible deadlock in hugetlbfs_file_mmap representative crash: possible deadlock in hugetlbfs_file_mmap, types: [LOCKDEP] # git bisect good 78efab71a6493fc71ff188c855c2d15f6e1211ef Bisecting: 3 revisions left to test after this (roughly 2 steps) [43d8cbfefa7c59bd3b5fe184535eca476d45304e] sched/cpuset: Keep track of SCHED_DEADLINE task in cpusets determine whether the revision contains the guilty commit revision c957cbb8731536ddc9a01e4c1cd51eab6558aa14 crashed and is reachable testing commit 43d8cbfefa7c59bd3b5fe184535eca476d45304e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 61eb593be0a87439dd9fb49535c01abe4263f24a229437244161ac3f8ae23766 all runs: OK false negative chance: 0.000 # git bisect bad 43d8cbfefa7c59bd3b5fe184535eca476d45304e Bisecting: 0 revisions left to test after this (roughly 1 step) [d0eb4917f4d36f106e2c5daa9598f6f8bd08a734] sched/cpuset: Bring back cpuset_mutex determine whether the revision contains the guilty commit revision ef748360ba9168ccfc199693f03d884682224ea6 crashed and is reachable testing commit d0eb4917f4d36f106e2c5daa9598f6f8bd08a734 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3f4b32b76b2e459017954e7f82389e86bb556029f41a4c2cf9aca77105320ab3 all runs: OK false negative chance: 0.000 # git bisect bad d0eb4917f4d36f106e2c5daa9598f6f8bd08a734 Bisecting: 0 revisions left to test after this (roughly 0 steps) [918879de0e23ca9fc60b8ad1c996d12a813c9316] cgroup/cpuset: Rename functions dealing with DEADLINE accounting determine whether the revision contains the guilty commit revision 019f013e8b92360b0ce4d0ca3e73bdf63c50a542 crashed and is reachable testing commit 918879de0e23ca9fc60b8ad1c996d12a813c9316 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3cad187e3b5b67c77cc6880ed6c8c55cfea489061d94e02ffb42b729feef85a1 all runs: crashed: possible deadlock in hugetlbfs_file_mmap representative crash: possible deadlock in hugetlbfs_file_mmap, types: [LOCKDEP] # git bisect good 918879de0e23ca9fc60b8ad1c996d12a813c9316 d0eb4917f4d36f106e2c5daa9598f6f8bd08a734 is the first bad commit commit d0eb4917f4d36f106e2c5daa9598f6f8bd08a734 Author: Juri Lelli Date: Sun Aug 20 16:22:54 2023 +0100 sched/cpuset: Bring back cpuset_mutex commit 111cd11bbc54850f24191c52ff217da88a5e639b upstream. Turns out percpu_cpuset_rwsem - commit 1243dc518c9d ("cgroup/cpuset: Convert cpuset_mutex to percpu_rwsem") - wasn't such a brilliant idea, as it has been reported to cause slowdowns in workloads that need to change cpuset configuration frequently and it is also not implementing priority inheritance (which causes troubles with realtime workloads). Convert percpu_cpuset_rwsem back to regular cpuset_mutex. Also grab it only for SCHED_DEADLINE tasks (other policies don't care about stable cpusets anyway). Signed-off-by: Juri Lelli Reviewed-by: Waiman Long Signed-off-by: Tejun Heo [ Conflict in kernel/cgroup/cpuset.c due to pulling changes in functions or comments that don't exist on this branch. Remove a BUG_ON() for rwsem that doesn't exist on mainline. ] Signed-off-by: Qais Yousef (Google) Signed-off-by: Greg Kroah-Hartman include/linux/cpuset.h | 8 +-- kernel/cgroup/cpuset.c | 149 ++++++++++++++++++++++++------------------------- kernel/sched/core.c | 22 +++++--- 3 files changed, 93 insertions(+), 86 deletions(-) accumulated error probability: 0.00 culprit signature: 3f4b32b76b2e459017954e7f82389e86bb556029f41a4c2cf9aca77105320ab3 parent signature: 3cad187e3b5b67c77cc6880ed6c8c55cfea489061d94e02ffb42b729feef85a1 revisions tested: 20, total time: 3h13m10.519164546s (build: 54m27.078773173s, test: 2h14m41.094545604s) first good commit: d0eb4917f4d36f106e2c5daa9598f6f8bd08a734 sched/cpuset: Bring back cpuset_mutex recipients (to): ["gregkh@linuxfoundation.org" "juri.lelli@redhat.com" "longman@redhat.com" "qyousef@layalina.io" "tj@kernel.org"] recipients (cc): []