ci starts bisection 2023-12-04 08:37:49.956239273 +0000 UTC m=+363579.356138655 bisecting cause commit starting from 33cc938e65a98f1d29d0a18403dbbee050dcad9a building syzkaller on f819d6f7cb99737851dcaaa51f11190138fd48d5 ensuring issue is reproducible on original commit 33cc938e65a98f1d29d0a18403dbbee050dcad9a testing commit 33cc938e65a98f1d29d0a18403dbbee050dcad9a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 37f26347ed86872584174969caf9fb5dca826fe9950121040142950b697c801e all runs: crashed: WARNING in drm_gem_prime_fd_to_handle representative crash: WARNING in drm_gem_prime_fd_to_handle, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 33cc938e65a98f1d29d0a18403dbbee050dcad9a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ed9c8993f05d014b9b895f2a1b7148a9d87e57a779e03d66236f6eb8178ede50 all runs: crashed: WARNING in drm_gem_prime_fd_to_handle representative crash: WARNING in drm_gem_prime_fd_to_handle, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed kconfig minimization: base=3923 full=7659 leaves diff=2005 split chunks (needed=false): <2005> split chunk #0 of len 2005 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 33cc938e65a98f1d29d0a18403dbbee050dcad9a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f1d3454955ae0efd1a5dfee8936351b28c41c8492866876abb3373f2eab35bc5 all runs: crashed: WARNING in drm_gem_prime_fd_to_handle representative crash: WARNING in drm_gem_prime_fd_to_handle, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit 33cc938e65a98f1d29d0a18403dbbee050dcad9a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: da5a51572cf7821bdf195b8a1d76a48ef230d887cb853e6a834f80f6916a4fbc all runs: OK false negative chance: 0.000 testing without sub-chunk 3/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 33cc938e65a98f1d29d0a18403dbbee050dcad9a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8072b08bd6a7ab91f0faf5573ad5ed671b68c12e0cb83338a12aba2c42d85c13 all runs: crashed: WARNING in drm_gem_prime_fd_to_handle representative crash: WARNING in drm_gem_prime_fd_to_handle, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 33cc938e65a98f1d29d0a18403dbbee050dcad9a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1ecc034cba7ee8cb7d227e5528ac01d7bbae664482f7016bb82c355b684b2f71 all runs: crashed: WARNING in drm_gem_prime_fd_to_handle representative crash: WARNING in drm_gem_prime_fd_to_handle, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 33cc938e65a98f1d29d0a18403dbbee050dcad9a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c27ca8c0528026c40a10c8069fef710e380986166c6dadab8a26429cbb8a2323 all runs: crashed: WARNING in drm_gem_prime_fd_to_handle representative crash: WARNING in drm_gem_prime_fd_to_handle, types: [WARNING] the chunk can be dropped minimized to 401 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI CMA COMMON_CLK DAX DLM DRM DRM_BRIDGE DRM_DEBUG_MM DRM_DISPLAY_DP_HELPER DRM_DISPLAY_HDCP_HELPER DRM_DISPLAY_HDMI_HELPER DRM_DISPLAY_HELPER DRM_DP_AUX_BUS DRM_DP_AUX_CHARDEV DRM_FBDEV_EMULATION DRM_GEM_SHMEM_HELPER DRM_I915 DRM_I915_CAPTURE_ERROR DRM_I915_COMPRESS_ERROR DRM_I915_USERPTR DRM_KMS_HELPER DRM_MIPI_DSI DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_EDP DRM_PANEL_ORIENTATION_QUIRKS DRM_SIMPLEDRM DRM_TTM DRM_TTM_HELPER DRM_UDL DRM_VGEM DRM_VIRTIO_GPU DRM_VIRTIO_GPU_KMS DRM_VKMS DRM_VMWGFX 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 EXTCON EXTCON_INTEL_CHT_WC 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_CFB_COPYAREA FB_CFB_FILLRECT FB_CFB_IMAGEBLIT FB_CORE FB_DEFERRED_IO FB_IOMEM_FOPS FB_IOMEM_HELPERS FB_NOTIFY FB_SYSMEM_HELPERS FB_SYSMEM_HELPERS_DEFERRED 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_SYSFS FW_LOADER_USER_HELPER FW_LOADER_USER_HELPER_FALLBACK GACT_PROB GARP GENERIC_PHY GET_FREE_REGION 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 GUEST_PERF_EVENTS GVE HAVE_ARCH_NODE_DEV_GROUP HAVE_ARCH_USERFAULTFD_MINOR HAVE_ARCH_USERFAULTFD_WP HAVE_BOOTMEM_INFO_NODE HAVE_CLK_PREPARE HAVE_KVM_CPU_RELAX_INTERCEPT HAVE_KVM_DIRTY_RING HAVE_KVM_DIRTY_RING_ACQ_REL HAVE_KVM_DIRTY_RING_TSO 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_PFNCACHE 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_DESIGNWARE_CORE I2C_DESIGNWARE_PLATFORM 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 INTEL_IDMA64 INTEL_IOATDMA INTEL_IOMMU_DEFAULT_ON INTEL_IOMMU_SVM INTEL_ISH_HID INTEL_SOC_PMIC_CHTWC INTERVAL_TREE INTERVAL_TREE_SPAN_ITER IOMMUFD IOMMUFD_DRIVER IOMMUFD_TEST IOMMU_SVA 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_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_PROTO_TCP IRQ_TIME_ACCOUNTING 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 RFKILL SND SOUND STAGING TRANSPARENT_HUGEPAGE VIDEO_DEV VIRTIO_FS WAN ZONE_DEVICE] disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], 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: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0f0a574fe733223c6a13138e76df38d46a381c5140abbcfbea8878aade37e66c all runs: crashed: WARNING in drm_prime_fd_to_handle_ioctl representative crash: WARNING in drm_prime_fd_to_handle_ioctl, types: [WARNING] 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: 057907007422ceeddd6d1ef7a53e2bd9ec2e0cfbb98b785814f38a4a60ccaed0 all runs: crashed: WARNING in drm_gem_prime_fd_to_handle representative crash: WARNING in drm_gem_prime_fd_to_handle, types: [WARNING] testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 77f558b52fffe72f6da4566a32fd47a4afc1a08303f4ebc1e08f6dc630722aed all runs: crashed: WARNING in drm_gem_prime_fd_to_handle representative crash: WARNING in drm_gem_prime_fd_to_handle, types: [WARNING] testing release v6.2 testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7423d00f7ed35de1c6342bda05648c04a14d53fba6cc155a77a3e40bd09e77b1 all runs: crashed: WARNING in drm_gem_prime_fd_to_handle representative crash: WARNING in drm_gem_prime_fd_to_handle, types: [WARNING] testing release v6.0 testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fc8714d9f5be8f7a166cb171b95d302b990c3f6335f100b3da7ba540df77b106 all runs: OK false negative chance: 0.000 # git bisect start c9c3395d5e3dcc6daee66c6908354d47bf98cb0c 4fe89d07dcc2804c8b562f6c7896a45643d34b2f Bisecting: 16118 revisions left to test after this (roughly 14 steps) [fe8f5b2f7bec504021b395d24f7efca415d21e2b] Merge tag 'amd-drm-fixes-6.2-2022-12-21' of https://gitlab.freedesktop.org/agd5f/linux into drm-next testing commit fe8f5b2f7bec504021b395d24f7efca415d21e2b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c8c9e9e83c44d15b20e308952a372ebe28670175f742e09d9a848ce00840c1c2 all runs: OK false negative chance: 0.000 # git bisect good fe8f5b2f7bec504021b395d24f7efca415d21e2b Bisecting: 7173 revisions left to test after this (roughly 13 steps) [7e68dd7d07a28faa2e6574dd6b9dbd90cdeaae91] Merge tag 'net-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit 7e68dd7d07a28faa2e6574dd6b9dbd90cdeaae91 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3d1e8ba7295e5e89f38222efd62e36dde7b51e4372b44ed10b9e687396e36c5a all runs: OK false negative chance: 0.000 # git bisect good 7e68dd7d07a28faa2e6574dd6b9dbd90cdeaae91 Bisecting: 3607 revisions left to test after this (roughly 12 steps) [a6e3e6f138058ff184d8ef5064a033b3f5fee8f8] Merge tag 'mm-nonmm-stable-2022-12-17-20-32' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit a6e3e6f138058ff184d8ef5064a033b3f5fee8f8 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4da37c4e2b76f85b44523f524daf41edbe4709cd0b57bc4db41b9e07fa5e4e4d all runs: OK false negative chance: 0.000 # git bisect good a6e3e6f138058ff184d8ef5064a033b3f5fee8f8 Bisecting: 1802 revisions left to test after this (roughly 11 steps) [df3a71aba40fbe4bbd0842170e70c236eaed7c40] Merge branches 'acpi-resource' and 'acpi-video' testing commit df3a71aba40fbe4bbd0842170e70c236eaed7c40 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 949b7cf85c6b9cf42009499c37d13d35fb8fe67f65be7e2988103726e97c5a5c all runs: OK false negative chance: 0.000 # git bisect good df3a71aba40fbe4bbd0842170e70c236eaed7c40 Bisecting: 901 revisions left to test after this (roughly 10 steps) [948ef7bb70c4acaf74d87420ea3a1190862d4548] Merge tag 'modules-6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux testing commit 948ef7bb70c4acaf74d87420ea3a1190862d4548 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7d58a8876526c0ecf42f7ed6fdb8f6fa0ba6755654b99d2d68c0c1cb6aa0445c all runs: OK false negative chance: 0.000 # git bisect good 948ef7bb70c4acaf74d87420ea3a1190862d4548 Bisecting: 451 revisions left to test after this (roughly 9 steps) [837c07cf68fec9cad455d5fc86aab5350cc06c53] Merge tag 'powerpc-6.2-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux testing commit 837c07cf68fec9cad455d5fc86aab5350cc06c53 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4069a2902ac227aa8def743f1dee94e471f97be38e1bafef434778ad4478a68d all runs: OK false negative chance: 0.000 # git bisect good 837c07cf68fec9cad455d5fc86aab5350cc06c53 Bisecting: 224 revisions left to test after this (roughly 8 steps) [8e9a8427a1f1f39632e2b2ccd651e499c64f59b2] Merge tag 'riscv-for-linus-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux testing commit 8e9a8427a1f1f39632e2b2ccd651e499c64f59b2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0c8dfb22443bef4b6e36840c8cc8d6cb7afb723210d55438b48765827571026e all runs: crashed: WARNING in drm_gem_prime_fd_to_handle representative crash: WARNING in drm_gem_prime_fd_to_handle, types: [WARNING] # git bisect bad 8e9a8427a1f1f39632e2b2ccd651e499c64f59b2 Bisecting: 130 revisions left to test after this (roughly 7 steps) [777c1e01cb7e1947765fb0c3b9b71dab18e53e46] Merge tag 'amd-drm-fixes-6.2-2023-02-09' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes testing commit 777c1e01cb7e1947765fb0c3b9b71dab18e53e46 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ec07d43d44ae21b64f94a49be72eee46d39a9db1d4b038f74c88068435d91eb7 all runs: crashed: WARNING in drm_gem_prime_fd_to_handle representative crash: WARNING in drm_gem_prime_fd_to_handle, types: [WARNING] # git bisect bad 777c1e01cb7e1947765fb0c3b9b71dab18e53e46 Bisecting: 43 revisions left to test after this (roughly 6 steps) [d3feaff4d9492aa05b94167e170858da81159654] Merge tag 'char-misc-6.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc testing commit d3feaff4d9492aa05b94167e170858da81159654 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2f13158fcc066b6ef65ee63422d88ba03109755313ea472c98dd0182277cf60b all runs: OK false negative chance: 0.000 # git bisect good d3feaff4d9492aa05b94167e170858da81159654 Bisecting: 21 revisions left to test after this (roughly 5 steps) [9874cc2df4e892c8744aa0472866cbf7c3cf1862] drm/amd/pm: bump SMU 13.0.0 driver_if header version testing commit 9874cc2df4e892c8744aa0472866cbf7c3cf1862 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 17c3c6016deb6bd7e8daf7ce4f4d412b7b67743b32c60053a32e6758b60e2ab2 all runs: OK false negative chance: 0.000 # git bisect good 9874cc2df4e892c8744aa0472866cbf7c3cf1862 Bisecting: 10 revisions left to test after this (roughly 4 steps) [337d5b5edc3d03a30a972aead75cc6be5dcebbf6] Merge tag 'drm-misc-fixes-2023-02-09' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes testing commit 337d5b5edc3d03a30a972aead75cc6be5dcebbf6 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a9c7a668f636f4a7661d9aba345611173bb49ecace239f49f65e7e467f20c59 all runs: crashed: WARNING in drm_gem_prime_fd_to_handle representative crash: WARNING in drm_gem_prime_fd_to_handle, types: [WARNING] # git bisect bad 337d5b5edc3d03a30a972aead75cc6be5dcebbf6 Bisecting: 5 revisions left to test after this (roughly 3 steps) [6c1a6d0b64e1a15016ba7450cce8629f94de56c7] amd/amdgpu: remove test ib on hw ring testing commit 6c1a6d0b64e1a15016ba7450cce8629f94de56c7 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 18649de17ba141bc7e493e93e65cf899cf28b959bf8e151b04bdde918f346832 all runs: OK false negative chance: 0.000 # git bisect good 6c1a6d0b64e1a15016ba7450cce8629f94de56c7 Bisecting: 2 revisions left to test after this (roughly 2 steps) [85e26dd5100a182bf8448050427539c0a66ab793] drm/client: fix circular reference counting issue testing commit 85e26dd5100a182bf8448050427539c0a66ab793 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 84d20134a7900c4a1bc84e279b032e4ec1fe62039dcf3114ec49cfda775f80a7 all runs: crashed: WARNING in drm_gem_prime_fd_to_handle representative crash: WARNING in drm_gem_prime_fd_to_handle, types: [WARNING] # git bisect bad 85e26dd5100a182bf8448050427539c0a66ab793 Bisecting: 0 revisions left to test after this (roughly 1 step) [8f20660f053cefd4693e69cfff9cf58f4f7c4929] drm/virtio: exbuf->fence_fd unmodified on interrupted wait testing commit 8f20660f053cefd4693e69cfff9cf58f4f7c4929 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 03eef781fb28b308f6954f0e42e1ae264e730b6fa0840ba3470263aeaa1f76bc all runs: OK false negative chance: 0.000 # git bisect good 8f20660f053cefd4693e69cfff9cf58f4f7c4929 85e26dd5100a182bf8448050427539c0a66ab793 is the first bad commit commit 85e26dd5100a182bf8448050427539c0a66ab793 Author: Christian König Date: Thu Jan 26 10:24:26 2023 +0100 drm/client: fix circular reference counting issue We reference dump buffers both by their handle as well as their object. The problem is now that when anybody iterates over the DRM framebuffers and exports the underlying GEM objects through DMA-buf we run into a circular reference count situation. The result is that the fbdev handling holds the GEM handle preventing the DMA-buf in the GEM object to be released. This DMA-buf in turn holds a reference to the driver module which on unload would release the fbdev. Break that loop by releasing the handle as soon as the DRM framebuffer object is created. The DRM framebuffer and the DRM client buffer structure still hold a reference to the underlying GEM object preventing its destruction. Signed-off-by: Christian König Fixes: c76f0f7cb546 ("drm: Begin an API for in-kernel clients") Cc: Reviewed-by: Thomas Zimmermann Tested-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20230126102814.8722-1-christian.koenig@amd.com drivers/gpu/drm/drm_client.c | 33 ++++++++++++++++++++------------- include/drm/drm_client.h | 5 ----- 2 files changed, 20 insertions(+), 18 deletions(-) accumulated error probability: 0.00 culprit signature: 84d20134a7900c4a1bc84e279b032e4ec1fe62039dcf3114ec49cfda775f80a7 parent signature: 03eef781fb28b308f6954f0e42e1ae264e730b6fa0840ba3470263aeaa1f76bc revisions tested: 26, total time: 8h21m45.689665228s (build: 4h49m39.438726365s, test: 3h12m34.673376399s) first bad commit: 85e26dd5100a182bf8448050427539c0a66ab793 drm/client: fix circular reference counting issue recipients (to): ["airlied@gmail.com" "christian.koenig@amd.com" "daniel@ffwll.ch" "dri-devel@lists.freedesktop.org" "maarten.lankhorst@linux.intel.com" "mripard@kernel.org" "tzimmermann@suse.de" "tzimmermann@suse.de"] recipients (cc): ["linux-kernel@vger.kernel.org"] crash: WARNING in drm_gem_prime_fd_to_handle ------------[ cut here ]------------ WARNING: CPU: 1 PID: 2127 at drivers/gpu/drm/drm_prime.c:331 drm_gem_prime_fd_to_handle+0x1b5/0x1c0 drivers/gpu/drm/drm_prime.c:331 Modules linked in: CPU: 1 PID: 2127 Comm: syz-executor.0 Not tainted 6.2.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:drm_gem_prime_fd_to_handle+0x1b5/0x1c0 drivers/gpu/drm/drm_prime.c:331 Code: c7 e9 37 ff ff ff be 03 00 00 00 4c 89 ff e8 82 4c df ff e9 6f ff ff ff 48 8b 3c 24 44 89 fd e8 01 67 a7 00 e9 c2 fe ff ff 90 <0f> 0b 90 e9 2d ff ff ff 0f 1f 00 f3 0f 1e fa 41 54 49 89 fc 48 89 RSP: 0018:ffffc90001ec3d90 EFLAGS: 00010206 RAX: ffff888101f22a00 RBX: ffff888103775800 RCX: 0000000000000007 RDX: 0000000000000005 RSI: ffff888107a79010 RDI: ffff888107668000 RBP: ffff888107668000 R08: 0000000000000000 R09: 0000000000000252 R10: ffffc90001ec3d90 R11: ffffc90001ec3e72 R12: ffffc90001ec3e50 R13: ffff888103775b70 R14: ffff888101f22200 R15: ffff888107662000 FS: 00007fae260f76c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fae255980c0 CR3: 0000000108b21000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: drm_ioctl_kernel+0xc4/0x170 drivers/gpu/drm/drm_ioctl.c:788 drm_ioctl+0x1e2/0x450 drivers/gpu/drm/drm_ioctl.c:891 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x84/0xc0 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x64/0xce RIP: 0033:0x7fae2547cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fae260f70c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fae2559bf80 RCX: 00007fae2547cae9 RDX: 0000000020000180 RSI: 00000000c00c642e RDI: 0000000000000004 RBP: 00007fae254c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007fae2559bf80 R15: 00007ffe0c4fb7f8