ci starts bisection 2024-02-12 01:02:53.975941823 +0000 UTC m=+195918.644490414 bisecting cause commit starting from 445a555e0623387fa9b94e68e61681717e70200a building syzkaller on 77b23aa147a898d1e1912a5f01e6716bbdc3a59e ensuring issue is reproducible on original commit 445a555e0623387fa9b94e68e61681717e70200a testing commit 445a555e0623387fa9b94e68e61681717e70200a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 88316e50f82b06472b6a69382cf439b74e8aea20159dbf7cf4e5df7d3ff62f59 all runs: crashed: divide error in drm_mode_convert_to_umode representative crash: divide error in drm_mode_convert_to_umode, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 445a555e0623387fa9b94e68e61681717e70200a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7b377d845b12212df80df265e92b213a9b6e4b86629e30d17b22d0ff1b494b49 all runs: crashed: divide error in drm_mode_convert_to_umode representative crash: divide error in drm_mode_convert_to_umode, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed kconfig minimization: base=3937 full=7985 leaves diff=2019 split chunks (needed=false): <2019> split chunk #0 of len 2019 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 445a555e0623387fa9b94e68e61681717e70200a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2af3949b5f644b0c6d0c01f9b99ccae37cc518671e74a3e47dfd45928d61a703 all runs: crashed: divide error in drm_mode_convert_to_umode representative crash: divide error in drm_mode_convert_to_umode, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 445a555e0623387fa9b94e68e61681717e70200a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7d209b1ac1d4e0851267115e49eb8658c31fd5493f8ea7961dd7a2a5f6f4c83a all runs: OK false negative chance: 0.000 testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 445a555e0623387fa9b94e68e61681717e70200a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a3036add9983e363cc13e7490872ea17572466d47c2d2ffe14390966c2ed15a8 all runs: crashed: divide error in drm_mode_convert_to_umode representative crash: divide error in drm_mode_convert_to_umode, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 445a555e0623387fa9b94e68e61681717e70200a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9bca32de3d8ecbee7700b4808a62696f66cab4eab2c81135de281b37e7a7b614 all runs: crashed: divide error in drm_mode_convert_to_umode representative crash: divide error in drm_mode_convert_to_umode, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 445a555e0623387fa9b94e68e61681717e70200a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b90a93e2ba627943a1b421378a26890d30ac33ef69953bde995367c5513b0381 all runs: crashed: divide error in drm_mode_convert_to_umode representative crash: divide error in drm_mode_convert_to_umode, types: [UNKNOWN] the chunk can be dropped minimized to 404 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI CMA COMMON_CLK CRYPTO_LZO 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_FOPS FB_SYSMEM_HELPERS FB_SYSMEM_HELPERS_DEFERRED FB_SYS_COPYAREA FB_SYS_FILLRECT 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_STACK 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 GCC_NO_STRINGOP_OVERFLOW 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_IRQCHIP 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 HIBERNATION_COMP_LZO 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_MM_DATA IOMMU_SVA IP6_NF_IPTABLES_LEGACY 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_IPTABLES_LEGACY 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_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_COMPAT NFT_COMPAT_ARP NFT_FWD_NETDEV NF_TABLES NF_TABLES_ARP 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 BUG KASAN LOCKDEP], 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: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6c9e234536cb4d5505cfcdcc3488e27f9abc4f6135a4063067327b5b145d8ecc all runs: crashed: divide error in drm_mode_convert_to_umode representative crash: divide error in drm_mode_convert_to_umode, types: [UNKNOWN] testing release v6.6 testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e4f27793941d4c2710dc1025089ce4bafa16d9222a27b98154cf151d8f36a1ba all runs: crashed: divide error in drm_mode_convert_to_umode representative crash: divide error in drm_mode_convert_to_umode, types: [UNKNOWN] testing release v6.5 testing commit 2dde18cd1d8fac735875f2e4987f11817cc0bc2c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 729b1b630efb6d56f49bb5c1cfe3c2c56c9481d23657cc3dbfc442595026a11c all runs: crashed: divide error in drm_mode_convert_to_umode representative crash: divide error in drm_mode_convert_to_umode, types: [UNKNOWN] testing release v6.3 testing commit 457391b0380335d5e9a5babdec90ac53928b23b4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5165ae20ec043b9dcf8e0169ff01feaa63e68b1db6c55a099935107ecc25119f all runs: crashed: divide error in drm_mode_convert_to_umode representative crash: divide error in drm_mode_convert_to_umode, types: [UNKNOWN] testing release v6.1 testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8e2136f9a15112002dbc6879c4106c3fafcd524860c74bd43b1024e1c0b2c81e all runs: crashed: divide error in drm_mode_convert_to_umode representative crash: divide error in drm_mode_convert_to_umode, types: [UNKNOWN] testing release v5.19 testing commit 3d7cb6b04c3f3115719235cc6866b10326de34cd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 100b3411d30f7aab8acdb47228ad3af2f085c8d231705a50518eb719fcd4c2e2 all runs: crashed: divide error in drm_mode_convert_to_umode representative crash: divide error in drm_mode_convert_to_umode, types: [UNKNOWN] testing release v5.17 testing commit f443e374ae131c168a065ea1748feac6b2e76613 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b38701e737b41dab73ca970e5c32538861eeeec27edec94c0e28444aa8590f4d all runs: crashed: divide error in drm_mode_convert_to_umode representative crash: divide error in drm_mode_convert_to_umode, types: [UNKNOWN] testing release v5.15 testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b7c6ed992d3afce0f5890b61b7f319651bb238b1b53cb757323ed5e17b9886f9 all runs: crashed: divide error in drm_mode_vrefresh representative crash: divide error in drm_mode_vrefresh, types: [UNKNOWN] testing release v5.12 testing commit 9f4ad9e425a1d3b6a34617b8ea226d56a119a717 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3967c0dd78bf8bea0dda53695dfa8f6f66b4b26a84b1f07fc21e7eb8123c0d4c all runs: crashed: divide error in drm_mode_vrefresh representative crash: divide error in drm_mode_vrefresh, types: [UNKNOWN] testing release v5.9 testing commit bbf5c979011a099af5dc76498918ed7df445635b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6171107e129f08cb20d6e0c0261a3b983ea4a2c84f9962c567513c9e6a7675b2 all runs: OK false negative chance: 0.000 # git bisect start 9f4ad9e425a1d3b6a34617b8ea226d56a119a717 bbf5c979011a099af5dc76498918ed7df445635b Bisecting: 23480 revisions left to test after this (roughly 15 steps) [0cee54c890a40051928991072e5d1cd279611dfd] Merge tag 'usb-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb testing commit 0cee54c890a40051928991072e5d1cd279611dfd gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4f2b59851c2b0185910cdc9d2ca0a87ac04e3366ee1e49ace57f1e1b535bee94 all runs: crashed: divide error in drm_mode_vrefresh representative crash: divide error in drm_mode_vrefresh, types: [UNKNOWN] # git bisect bad 0cee54c890a40051928991072e5d1cd279611dfd Bisecting: 11825 revisions left to test after this (roughly 14 steps) [9453b2d4694c2cb6c30d99e65d4a3deb09e94ac3] Merge tag 'for-linus-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml testing commit 9453b2d4694c2cb6c30d99e65d4a3deb09e94ac3 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4191143162bdd41863bb7fe365b90aec4de26fcef4c1b3f4e57f8c4aff6077bb all runs: OK false negative chance: 0.000 # git bisect good 9453b2d4694c2cb6c30d99e65d4a3deb09e94ac3 Bisecting: 5962 revisions left to test after this (roughly 13 steps) [dfefd226b0bf7c435a58d75a0ce2f9273b9825f6] mm: cleanup kstrto*() usage testing commit dfefd226b0bf7c435a58d75a0ce2f9273b9825f6 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 07535f07bc50f68205eebb80baf44fe696e6b1ef44bd0812cf3af68b064eabf0 all runs: OK false negative chance: 0.000 # git bisect good dfefd226b0bf7c435a58d75a0ce2f9273b9825f6 Bisecting: 2979 revisions left to test after this (roughly 12 steps) [8a8ca83ec3cf7ffc69020c189e3d368b1d4ba98a] Merge tag 'perf-core-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 8a8ca83ec3cf7ffc69020c189e3d368b1d4ba98a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4865e1e7737d2b64a17b2f927e29059f3add82d515815791a652a56fae5dc589 all runs: crashed: divide error in drm_mode_vrefresh representative crash: divide error in drm_mode_vrefresh, types: [UNKNOWN] # git bisect bad 8a8ca83ec3cf7ffc69020c189e3d368b1d4ba98a Bisecting: 1651 revisions left to test after this (roughly 11 steps) [f8aab60422c371425365d386dfd51e0c6c5b1041] drm/amdgpu: Initialise drm_gem_object_funcs for imported BOs testing commit f8aab60422c371425365d386dfd51e0c6c5b1041 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ad37a4d9fa1b50176321afe33722c1eff945761b286630ed0bed867a44979cce all runs: crashed: divide error in drm_mode_vrefresh representative crash: divide error in drm_mode_vrefresh, types: [UNKNOWN] # git bisect bad f8aab60422c371425365d386dfd51e0c6c5b1041 Bisecting: 882 revisions left to test after this (roughly 9 steps) [c0f98d2f8b076bf3e3183aa547395f919c943a14] Merge tag 'drm-misc-next-2020-11-05' of git://anongit.freedesktop.org/drm/drm-misc into drm-next testing commit c0f98d2f8b076bf3e3183aa547395f919c943a14 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1a0abc40026a53ba76bf24972c5f6e67020566a4545351334e56ddfed7129e96 all runs: crashed: divide error in drm_mode_vrefresh representative crash: divide error in drm_mode_vrefresh, types: [UNKNOWN] # git bisect bad c0f98d2f8b076bf3e3183aa547395f919c943a14 Bisecting: 223 revisions left to test after this (roughly 8 steps) [6a6e5988a2657cd0c91f6f1a3e7d194599248b6d] drm/ttm: replace last move_notify with delete_mem_notify testing commit 6a6e5988a2657cd0c91f6f1a3e7d194599248b6d gcc compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 44123566f819109b98e834a9963632e0aef4c8c0bbcc0b4309b5c2a5fe114b93 all runs: crashed: divide error in drm_mode_vrefresh representative crash: divide error in drm_mode_vrefresh, types: [UNKNOWN] # git bisect bad 6a6e5988a2657cd0c91f6f1a3e7d194599248b6d Bisecting: 111 revisions left to test after this (roughly 7 steps) [291e8cdd6bc57658035239315d27f3f971ec062b] MAINTAINERS: mark FRAMEBUFFER LAYER as Orphan testing commit 291e8cdd6bc57658035239315d27f3f971ec062b gcc compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fed302ba203d4f8cec673e0be1d7715f542c06757e33a74e60f9f7f1b80f90d6 all runs: OK false negative chance: 0.000 # git bisect good 291e8cdd6bc57658035239315d27f3f971ec062b Bisecting: 55 revisions left to test after this (roughly 6 steps) [787099f8671c5cec6cadbb3da3713d97df5c7fd6] drm/panel: mantix: Fix panel reset testing commit 787099f8671c5cec6cadbb3da3713d97df5c7fd6 gcc compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4fc16f4b21caff4dcfae7a4d538c542e9d09d8f45d67625c9720c11be4662716 all runs: OK false negative chance: 0.000 # git bisect good 787099f8671c5cec6cadbb3da3713d97df5c7fd6 Bisecting: 27 revisions left to test after this (roughly 5 steps) [7a1f4fa4a62933797152578d3730058fe6861b42] drm/panel: simple: Add YTC700TLAG-05-201C testing commit 7a1f4fa4a62933797152578d3730058fe6861b42 gcc compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 33dccb451eb87c9dc017eef0002c653d2d9187578f499ee3e187e754d8c7df45 all runs: OK false negative chance: 0.000 # git bisect good 7a1f4fa4a62933797152578d3730058fe6861b42 Bisecting: 13 revisions left to test after this (roughly 4 steps) [c37d951cb42aa340513c0bc2df10b7324fa0d856] drm/ttm: add move old to system to drivers. testing commit c37d951cb42aa340513c0bc2df10b7324fa0d856 gcc compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1c4e00409ab756cff14360d7a477c8c9ea313d6a964a5d5e780e3034a2b95bbc all runs: OK false negative chance: 0.000 # git bisect good c37d951cb42aa340513c0bc2df10b7324fa0d856 Bisecting: 6 revisions left to test after this (roughly 3 steps) [29a1d482e4044ab76d0c0f6341212f1a51f48236] drm/ttm: add move to system into drivers testing commit 29a1d482e4044ab76d0c0f6341212f1a51f48236 gcc compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cea73450bdbb1a8bfcd6763d7f690dfed82c3151a9ece4a2aa537b192e3d96dc all runs: crashed: divide error in drm_mode_vrefresh representative crash: divide error in drm_mode_vrefresh, types: [UNKNOWN] # git bisect bad 29a1d482e4044ab76d0c0f6341212f1a51f48236 Bisecting: 3 revisions left to test after this (roughly 2 steps) [1c831ade9f352d4690e2c3c67b674bc65cb3af3e] drm/komeda: Drop local dma_parms testing commit 1c831ade9f352d4690e2c3c67b674bc65cb3af3e gcc compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eb710e6b9b71a60b48fe45fa5e5c19938acdd2ccc53a1d044da4397c1ac488c3 all runs: crashed: divide error in drm_mode_vrefresh representative crash: divide error in drm_mode_vrefresh, types: [UNKNOWN] # git bisect bad 1c831ade9f352d4690e2c3c67b674bc65cb3af3e Bisecting: 0 revisions left to test after this (roughly 1 step) [ea40d7857d5250e5400f38c69ef9e17321e9c4a2] drm/vkms: fbdev emulation support testing commit ea40d7857d5250e5400f38c69ef9e17321e9c4a2 gcc compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eb710e6b9b71a60b48fe45fa5e5c19938acdd2ccc53a1d044da4397c1ac488c3 all runs: crashed: divide error in drm_mode_vrefresh representative crash: divide error in drm_mode_vrefresh, types: [UNKNOWN] # git bisect bad ea40d7857d5250e5400f38c69ef9e17321e9c4a2 Bisecting: 0 revisions left to test after this (roughly 0 steps) [23fae9cf97cc0ba54e4d6c8e078871f56370f271] drm/ttm: drop ttm_bo_move_ttm wrapper testing commit 23fae9cf97cc0ba54e4d6c8e078871f56370f271 gcc compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9fa3d9f46fcc29fb1f495c285b398f63cc7127cf5617891b073445e56b6fdef9 all runs: OK false negative chance: 0.000 # git bisect good 23fae9cf97cc0ba54e4d6c8e078871f56370f271 ea40d7857d5250e5400f38c69ef9e17321e9c4a2 is the first bad commit commit ea40d7857d5250e5400f38c69ef9e17321e9c4a2 Author: Daniel Vetter Date: Sat Oct 10 01:21:56 2020 +0200 drm/vkms: fbdev emulation support Hooray for generic fbdev support, making this a oneliner. We just needed to fix preferred_depth fixed and the vmap support added first. This is useful for testing fbdev testcases in igt. Right now we only have a simple one in the fbdev testcases, which passes both info and mmap subtests. v2: Augment commit message as suggested by Melissa. Acked-by: Thomas Zimmermann Reviewed-by: Melissa Wen Signed-off-by: Daniel Vetter Cc: Rodrigo Siqueira Cc: Melissa Wen Cc: Haneen Mohammed Cc: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20201009232156.3916879-3-daniel.vetter@ffwll.ch drivers/gpu/drm/vkms/vkms_drv.c | 2 ++ 1 file changed, 2 insertions(+) accumulated error probability: 0.00 culprit signature: eb710e6b9b71a60b48fe45fa5e5c19938acdd2ccc53a1d044da4397c1ac488c3 parent signature: 9fa3d9f46fcc29fb1f495c285b398f63cc7127cf5617891b073445e56b6fdef9 revisions tested: 32, total time: 10h58m29.119635645s (build: 6h13m32.900996124s, test: 4h23m35.433391663s) first bad commit: ea40d7857d5250e5400f38c69ef9e17321e9c4a2 drm/vkms: fbdev emulation support recipients (to): ["daniel.vetter@ffwll.ch" "daniel.vetter@intel.com" "melissa.srw@gmail.com" "tzimmermann@suse.de"] recipients (cc): [] crash: divide error in drm_mode_vrefresh divide_error: 0000 [#1] SMP PTI CPU: 0 PID: 2729 Comm: syz-executor.0 Not tainted 5.9.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:drm_mode_vrefresh+0x45/0x50 drivers/gpu/drm/drm_modes.c:775 Code: 17 e8 03 00 00 8d 34 12 a8 10 0f 45 d6 a8 20 0f b7 47 16 8d 34 09 0f 45 ce 66 83 f8 01 76 03 0f af c8 89 c8 d1 e8 01 d0 31 d2 f1 c3 0f 1f 84 00 00 00 00 00 48 85 ff 0f 84 40 01 00 00 48 8b RSP: 0018:ffffc900001d7b88 EFLAGS: 00010246 RAX: 0000000000001f40 RBX: ffffc900001d7ba4 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000002000000 RDI: ffff888228b65600 RBP: ffff888228b65600 R08: ffff888228b65600 R09: ffff8882329d0d80 R10: 0000000000000001 R11: ffff888235df2660 R12: ffff888230229090 R13: ffff888235df2d40 R14: ffff888235df2d40 R15: ffff8882328f8180 FS: 00007f1dfd5d16c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1dfdab2710 CR3: 0000000227e92000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: drm_mode_convert_to_umode+0x63/0xe0 drivers/gpu/drm/drm_modes.c:1913 drm_atomic_set_mode_for_crtc+0x68/0x140 drivers/gpu/drm/drm_atomic_uapi.c:78 __drm_atomic_helper_set_config+0x99/0x2b0 drivers/gpu/drm/drm_atomic.c:1539 drm_atomic_helper_set_config+0x35/0xb0 drivers/gpu/drm/drm_atomic_helper.c:3018 drm_mode_setcrtc+0x1f3/0x720 drivers/gpu/drm/drm_crtc.c:736 drm_ioctl_kernel+0xaa/0xf0 drivers/gpu/drm/drm_ioctl.c:787 drm_ioctl+0x1f7/0x3bb drivers/gpu/drm/drm_ioctl.c:887 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x7f/0xb0 fs/ioctl.c:739 do_syscall_64+0x34/0x50 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f1dfda4fda9 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:00007f1dfd5d10c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f1dfdb7df80 RCX: 00007f1dfda4fda9 RDX: 0000000020000400 RSI: 00000000c06864a2 RDI: 0000000000000003 RBP: 00007f1dfda9c47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007f1dfdb7df80 R15: 00007ffc8e047ce8 Modules linked in: ---[ end trace ade3fa77c450f6b4 ]--- RIP: 0010:drm_mode_vrefresh+0x45/0x50 drivers/gpu/drm/drm_modes.c:775 Code: 17 e8 03 00 00 8d 34 12 a8 10 0f 45 d6 a8 20 0f b7 47 16 8d 34 09 0f 45 ce 66 83 f8 01 76 03 0f af c8 89 c8 d1 e8 01 d0 31 d2 f1 c3 0f 1f 84 00 00 00 00 00 48 85 ff 0f 84 40 01 00 00 48 8b RSP: 0018:ffffc900001d7b88 EFLAGS: 00010246 RAX: 0000000000001f40 RBX: ffffc900001d7ba4 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000002000000 RDI: ffff888228b65600 RBP: ffff888228b65600 R08: ffff888228b65600 R09: ffff8882329d0d80 R10: 0000000000000001 R11: ffff888235df2660 R12: ffff888230229090 R13: ffff888235df2d40 R14: ffff888235df2d40 R15: ffff8882328f8180 FS: 00007f1dfd5d16c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1dfdab2710 CR3: 0000000227e92000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: e8 03 00 00 8d call 0x8d000008 5: 34 12 xor $0x12,%al 7: a8 10 test $0x10,%al 9: 0f 45 d6 cmovne %esi,%edx c: a8 20 test $0x20,%al e: 0f b7 47 16 movzwl 0x16(%rdi),%eax 12: 8d 34 09 lea (%rcx,%rcx,1),%esi 15: 0f 45 ce cmovne %esi,%ecx 18: 66 83 f8 01 cmp $0x1,%ax 1c: 76 03 jbe 0x21 1e: 0f af c8 imul %eax,%ecx 21: 89 c8 mov %ecx,%eax 23: d1 e8 shr %eax 25: 01 d0 add %edx,%eax 27: 31 d2 xor %edx,%edx * 29: f7 f1 div %ecx <-- trapping instruction 2b: c3 ret 2c: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 33: 00 34: 48 85 ff test %rdi,%rdi 37: 0f 84 40 01 00 00 je 0x17d 3d: 48 rex.W 3e: 8b .byte 0x8b