ci2 starts bisection 2024-08-12 03:29:23.571163536 +0000 UTC m=+170526.147873795 bisecting fixing commit since 61adba85cc40287232a539e607164f273260e0fe building syzkaller on d615901c739a765329b688494cee2f8e1b5037cb ensuring issue is reproducible on original commit 61adba85cc40287232a539e607164f273260e0fe testing commit 61adba85cc40287232a539e607164f273260e0fe gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 563ad2b66d74eee153affa202bb33f5408b08e9cfd85b24c6dde438ee6ea0dae run #0: infra problem: create instance operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc002bbc140] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 125.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #1: infra problem: create instance operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0094389b0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 125.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #2: infra problem: create instance operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0068c4140] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 125.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #3: infra problem: create instance operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0068c45f0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 125.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #4: infra problem: create instance operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0068c4820] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 125.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #5: infra problem: create instance operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc009438ff0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 125.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #6: crashed: WARNING in vkms_get_vblank_timestamp run #7: crashed: WARNING in vkms_get_vblank_timestamp run #8: crashed: WARNING in vkms_get_vblank_timestamp run #9: crashed: WARNING in vkms_get_vblank_timestamp run #10: crashed: WARNING in vkms_get_vblank_timestamp run #11: crashed: WARNING in vkms_get_vblank_timestamp run #12: crashed: WARNING in vkms_get_vblank_timestamp run #13: crashed: WARNING in vkms_get_vblank_timestamp run #14: crashed: INFO: rcu detected stall in corrupted run #15: crashed: INFO: rcu detected stall in corrupted run #16: crashed: INFO: rcu detected stall in corrupted run #17: crashed: INFO: rcu detected stall in corrupted run #18: crashed: INFO: rcu detected stall in corrupted run #19: crashed: INFO: rcu detected stall in corrupted representative crash: WARNING in vkms_get_vblank_timestamp, 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 61adba85cc40287232a539e607164f273260e0fe gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a45be363b830209a86339f99d49c3923191cf4faa08514e1e47295f360a806ff run #0: crashed: WARNING in vkms_get_vblank_timestamp run #1: crashed: WARNING in vkms_get_vblank_timestamp run #2: crashed: WARNING in vkms_get_vblank_timestamp run #3: crashed: WARNING in vkms_get_vblank_timestamp run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: WARNING in vkms_get_vblank_timestamp run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit representative crash: WARNING in vkms_get_vblank_timestamp, types: [WARNING HANG] the bug reproduces without the instrumentation disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=7495 full=9693 leaves diff=1928 split chunks (needed=false): <1928> split chunk #0 of len 1928 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 61adba85cc40287232a539e607164f273260e0fe gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 755dcfb968f06307cb27270487917bcbac23cf799c3c903e9dfa157cb30c7613 run #0: crashed: WARNING in vkms_get_vblank_timestamp run #1: crashed: WARNING in vkms_get_vblank_timestamp run #2: crashed: WARNING in vkms_get_vblank_timestamp run #3: crashed: WARNING in vkms_get_vblank_timestamp run #4: crashed: WARNING in vkms_get_vblank_timestamp run #5: crashed: WARNING in vkms_get_vblank_timestamp run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in devlink_nl_cmd_port_get_dumpit run #8: crashed: no output from test machine run #9: crashed: no output from test machine representative crash: WARNING in vkms_get_vblank_timestamp, types: [WARNING UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 61adba85cc40287232a539e607164f273260e0fe gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 836d249354a0e4620706e8fb4bbee7bfa202075de5217fe6782c0fa64f173037 all runs: boot failed: can't ssh into the instance unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0 testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 61adba85cc40287232a539e607164f273260e0fe gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1316131b354bad116ae2fabf77452078d4a3b13f3c1a56798453df96e126512c run #0: crashed: WARNING in vkms_get_vblank_timestamp run #1: crashed: WARNING in vkms_get_vblank_timestamp run #2: crashed: WARNING in vkms_get_vblank_timestamp run #3: crashed: WARNING in vkms_get_vblank_timestamp run #4: crashed: WARNING in vkms_get_vblank_timestamp run #5: crashed: WARNING in vkms_get_vblank_timestamp run #6: crashed: WARNING in vkms_get_vblank_timestamp run #7: crashed: WARNING in vkms_get_vblank_timestamp run #8: crashed: WARNING in vkms_get_vblank_timestamp run #9: crashed: no output from test machine representative crash: WARNING in vkms_get_vblank_timestamp, 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 61adba85cc40287232a539e607164f273260e0fe gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2a0b45a5509ba5b6fca29fa8a1ef6add14ec746e112be5579804d677321d3b21 run #0: crashed: WARNING in vkms_get_vblank_timestamp run #1: crashed: WARNING in vkms_get_vblank_timestamp run #2: crashed: WARNING in vkms_get_vblank_timestamp run #3: crashed: WARNING in vkms_get_vblank_timestamp run #4: crashed: WARNING in vkms_get_vblank_timestamp run #5: crashed: WARNING in vkms_get_vblank_timestamp run #6: crashed: WARNING in vkms_get_vblank_timestamp run #7: crashed: WARNING in vkms_get_vblank_timestamp run #8: crashed: no output from test machine run #9: crashed: no output from test machine representative crash: WARNING in vkms_get_vblank_timestamp, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 61adba85cc40287232a539e607164f273260e0fe gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6324ec09b9f82a964a9e53c589490b39d7eea63736fd44876ca76d7f0367d8fc run #0: crashed: WARNING in vkms_get_vblank_timestamp run #1: crashed: WARNING in vkms_get_vblank_timestamp run #2: crashed: WARNING in vkms_get_vblank_timestamp run #3: crashed: WARNING in vkms_get_vblank_timestamp run #4: crashed: WARNING in vkms_get_vblank_timestamp run #5: crashed: WARNING in vkms_get_vblank_timestamp run #6: crashed: WARNING in vkms_get_vblank_timestamp run #7: crashed: WARNING in vkms_get_vblank_timestamp run #8: crashed: WARNING in vkms_get_vblank_timestamp run #9: crashed: no output from test machine representative crash: WARNING in vkms_get_vblank_timestamp, types: [WARNING] the chunk can be dropped minimized to 386 configs; suspects: [6LOWPAN ACPI_VIDEO DLM DRM DRM_TTM DRM_TTM_HELPER DRM_UDL DRM_V3D DRM_VC4 DRM_VGEM DRM_VIRTIO_GPU DRM_VKMS DRM_VRAM_HELPER DUMMY DVB_AF9013 DVB_AF9033 DVB_AS102 DVB_AS102_FE DVB_B2C2_FLEXCOP DVB_B2C2_FLEXCOP_USB 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 E100 ECRYPT_FS ECRYPT_FS_MESSAGING 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_POSIX_ACL EXT3_FS_SECURITY EXT4_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 FB_DEFERRED_IO FB_SYS_COPYAREA FB_SYS_FILLRECT FB_SYS_FOPS FB_SYS_IMAGEBLIT FB_TILEBLITTING FB_VIRTUAL FDDI FIB_RULES FIREWIRE FIREWIRE_NET FIREWIRE_OHCI FIREWIRE_SBP2 FRAMEBUFFER_CONSOLE_ROTATION FRONTSWAP FS_DAX FS_DAX_PMD FS_ENCRYPTION FS_ENCRYPTION_ALGS FS_VERITY FS_VERITY_BUILTIN_SIGNATURES FTL FW_LOADER_COMPRESS FW_LOADER_USER_HELPER_FALLBACK GACT_PROB GET_FREE_REGION GFS2_FS GFS2_FS_LOCKING_DLM GOOGLE_COREBOOT_TABLE GOOGLE_FIRMWARE GOOGLE_MEMCONSOLE GOOGLE_MEMCONSOLE_COREBOOT GOOGLE_VPD GPIO_DLN2 GPIO_VIPERBOARD GREENASIA_FF GREYBUS GREYBUS_BRIDGED_PHY GREYBUS_ES2 GREYBUS_HID GREYBUS_USB GTP GVE HAVE_ARCH_USERFAULTFD_MINOR HAVE_IMA_KEXEC HDLC HDLC_CISCO HDLC_FR HDLC_PPP HDLC_RAW HDLC_RAW_ETH HDLC_X25 HDMI HFSPLUS_FS HFS_FS HIDRAW 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_GYRATION 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_NTI HID_NTRIG HID_ORTEK HID_PENMOUNT HID_PETALYNX HID_PICOLCD HID_PICOLCD_BACKLIGHT HID_PICOLCD_CIR HID_PICOLCD_FB HID_PICOLCD_LCD HID_PICOLCD_LEDS HID_PID HID_PLANTRONICS HID_PRIMAX HID_PRODIKEYS HID_RETRODE HID_RMI HID_ROCCAT HID_SAITEK HID_SAMSUNG 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_SUNPLUS HID_THINGM HID_TIVO HID_TOPSEED HID_TWINHAN HID_UCLOGIC HID_UDRAW_PS3 HID_WACOM HID_WALTOP HID_WIIMOTE HID_XINMO HID_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPFS_FS I2C_DIOLAN_U2C I2C_DLN2 I2C_MUX_REG I2C_ROBOTFUZZ_OSIF I2C_SI4713 I2C_SLAVE_EEPROM I2C_TINY_USB I2C_VIPERBOARD IEEE802154 IEEE802154_6LOWPAN IEEE802154_ATUSB IEEE802154_DRIVERS IEEE802154_HWSIM IEEE802154_NL802154_EXPERIMENTAL IEEE802154_SOCKET IFB 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_AH INET6_ESP INET6_ESPINTCP INET6_ESP_OFFLOAD INET6_IPCOMP INET6_TUNNEL INET6_XFRM_TUNNEL INET_AH INET_DCCP_DIAG INET_DIAG_DESTROY INET_ESP INET_ESPINTCP INET_ESP_OFFLOAD INET_IPCOMP INET_MPTCP_DIAG INET_RAW_DIAG INET_SCTP_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_JOYSTICK 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 IP6_NF_MATCH_AH IP6_NF_MATCH_EUI64 IP6_NF_MATCH_FRAG IP6_NF_MATCH_HL IP6_NF_MATCH_IPV6HEADER IP6_NF_MATCH_MH IP6_NF_MATCH_OPTS IP6_NF_MATCH_RPFILTER IP6_NF_MATCH_RT IP6_NF_MATCH_SRH IP6_NF_RAW IP6_NF_SECURITY IP6_NF_TARGET_HL 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_ADVANCED_ROUTER IP_DCCP IP_DCCP_CCID3 IP_DCCP_TFRC_LIB IP_FIB_TRIE_STATS IP_MROUTE IP_MROUTE_COMMON 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_PIMSM_V1 IP_PIMSM_V2 IP_PNP_RARP IP_ROUTE_CLASSID IP_ROUTE_MULTIPATH IP_ROUTE_VERBOSE 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_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 IR_IGORPLUGUSB IR_IGUANA IR_IMON IR_MCEUSB IR_REDRAT3 IR_STREAMZAP IR_TTUSBIR ISDN ISDN_CAPI_MIDDLEWARE ISO9660_FS JFFS2_CMODE_PRIORITY JFFS2_COMPRESSION_OPTIONS JFFS2_FS JFFS2_FS_POSIX_ACL JFFS2_FS_SECURITY JFFS2_FS_WRITEBUFFER JFFS2_FS_XATTR JFFS2_LZO JFFS2_RTIME JFFS2_RUBIN JFFS2_SUMMARY JFFS2_ZLIB JFS_DEBUG JFS_FS JFS_POSIX_ACL JFS_SECURITY JOLIET JOYSTICK_IFORCE JOYSTICK_IFORCE_USB JOYSTICK_XPAD JOYSTICK_XPAD_FF JOYSTICK_XPAD_LEDS KARMA_PARTITION KCOV KCOV_ENABLE_COMPARISONS KCOV_INSTRUMENT_ALL LAPB LCD_CLASS_DEVICE MAC802154 MEDIA_RADIO_SUPPORT MEDIA_TEST_SUPPORT MFD_DLN2 MFD_VIPERBOARD MPTCP NET_IPGRE_DEMUX NFT_FWD_NETDEV NF_CONNTRACK_FTP NF_CONNTRACK_SIP NF_TABLES NF_TABLES_NETDEV PARTITION_ADVANCED RADIO_ADAPTERS RADIO_SI4713 RFKILL SND SND_SOC SOUND WAN XFRM ZONE_DEVICE] disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing current HEAD 36790ef5e00b69ccb92817f95ba1928eea24eebb testing commit 36790ef5e00b69ccb92817f95ba1928eea24eebb gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fa1a8c8f2f5600326e60bffe9febc1ea8bc7385c447ed3b78223b0ba0041d47c all runs: crashed: WARNING in vkms_get_vblank_timestamp representative crash: WARNING in vkms_get_vblank_timestamp, types: [WARNING] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 1h37m26.195081835s (build: 43m24.915278605s, test: 51m16.24913s) crash still not fixed or there were kernel test errors commit msg: Linux 6.1.104 crash: WARNING in vkms_get_vblank_timestamp ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3891 at drivers/gpu/drm/vkms/vkms_crtc.c:103 vkms_get_vblank_timestamp+0xb4/0xbc drivers/gpu/drm/vkms/vkms_crtc.c:103 Modules linked in: CPU: 0 PID: 3891 Comm: syz-executor.1 Not tainted 6.1.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : vkms_get_vblank_timestamp+0xb4/0xbc drivers/gpu/drm/vkms/vkms_crtc.c:103 lr : vkms_get_vblank_timestamp+0xb4/0xbc drivers/gpu/drm/vkms/vkms_crtc.c:103 sp : ffff80001145b740 x29: ffff80001145b740 x28: ffff8000092bd7a4 x27: ffff8000092bf334 x26: ffff0000c2dc9c80 x25: 0000000000004e20 x24: 0000000000000000 x23: ffff0000c2dc9c80 x22: ffff0000c6706000 x21: 00000009b9ead8d9 x20: 00000009b9ead8d9 x19: ffff80001145b798 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000038345258 x13: ffff0000c5ff4bc0 x12: ffff80000d1b5000 x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff8000092bf3e8 x8 : ffff0000c5ff4bc0 x7 : 0000000000000000 x6 : ffff8000092413b8 x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 x2 : ffff80001145b798 x1 : 00000009b9ead8d9 x0 : 00000009b9ead8d9 Call trace: vkms_get_vblank_timestamp+0xb4/0xbc drivers/gpu/drm/vkms/vkms_crtc.c:103 drm_get_last_vbltimestamp drivers/gpu/drm/drm_vblank.c:881 [inline] drm_update_vblank_count+0xf4/0x5c4 drivers/gpu/drm/drm_vblank.c:303 drm_crtc_accurate_vblank_count+0x84/0x178 drivers/gpu/drm/drm_vblank.c:416 drm_crtc_arm_vblank_event+0x4c/0xac drivers/gpu/drm/drm_vblank.c:1066 vkms_crtc_atomic_flush+0x84/0xc0 drivers/gpu/drm/vkms/vkms_crtc.c:259 drm_atomic_helper_commit_planes+0x33c/0x390 drivers/gpu/drm/drm_atomic_helper.c:2732 vkms_atomic_commit_tail+0x40/0x104 drivers/gpu/drm/vkms/vkms_drv.c:73 commit_tail+0x100/0x21c drivers/gpu/drm/drm_atomic_helper.c:1803 drm_atomic_helper_commit+0x328/0x32c drivers/gpu/drm/drm_atomic_helper.c:2043 drm_atomic_commit+0xe4/0x11c drivers/gpu/drm/drm_atomic.c:1452 drm_atomic_helper_set_config+0xa0/0x144 drivers/gpu/drm/drm_atomic_helper.c:3176 drm_mode_setcrtc+0x4ac/0x8e4 drivers/gpu/drm/drm_crtc.c:886 drm_ioctl_kernel+0x19c/0x250 drivers/gpu/drm/drm_ioctl.c:788 drm_ioctl+0x36c/0x580 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] __arm64_sys_ioctl+0xd0/0x148 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xb8/0x174 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x48/0x174 arch/arm64/kernel/syscall.c:204 el0_svc+0x34/0x110 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 ---[ end trace 0000000000000000 ]---