ci2 starts bisection 2025-12-18 08:15:18.946801393 +0000 UTC m=+1881931.123924540 bisecting fixing commit since c79648372d02944bf4a54d87e3901db05d0ac82e building syzkaller on 32a0e5edfeef60e894c453dc9e9ae45528626ef1 ensuring issue is reproducible on original commit c79648372d02944bf4a54d87e3901db05d0ac82e testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a4c0cb1e48e0bccd4d629b538fb5b781351d2c424c51213f7b0f31e7c6d02fed run #0: crashed: WARNING in ext4_iomap_begin run #1: crashed: WARNING in ext4_iomap_begin run #2: crashed: WARNING in ext4_iomap_begin run #3: crashed: kernel BUG in ext4_writepages run #4: crashed: WARNING in ext4_iomap_begin run #5: crashed: WARNING in ext4_iomap_begin run #6: crashed: WARNING in ext4_iomap_begin run #7: crashed: WARNING in ext4_iomap_begin run #8: crashed: WARNING in ext4_iomap_begin run #9: crashed: WARNING in ext4_iomap_begin run #10: crashed: WARNING in ext4_iomap_begin run #11: crashed: kernel BUG in ext4_writepages run #12: crashed: WARNING in ext4_iomap_begin run #13: crashed: WARNING in ext4_iomap_begin run #14: crashed: WARNING in ext4_iomap_begin run #15: crashed: WARNING in ext4_iomap_begin run #16: crashed: WARNING in ext4_iomap_begin run #17: crashed: WARNING in ext4_iomap_begin run #18: crashed: WARNING in ext4_iomap_begin run #19: crashed: WARNING in ext4_iomap_begin representative crash: WARNING in ext4_iomap_begin, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0aa1b0906441bcc5b2937b8192eb512c2522b9b042d2ddf79b622e83fcd2d3fb run #0: crashed: WARNING in ext4_iomap_begin run #1: crashed: WARNING in ext4_iomap_begin run #2: crashed: WARNING in ext4_iomap_begin run #3: crashed: WARNING in ext4_iomap_begin run #4: crashed: kernel BUG in ext4_writepages run #5: crashed: WARNING in ext4_iomap_begin run #6: OK run #7: OK run #8: OK run #9: OK representative crash: WARNING in ext4_iomap_begin, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed kconfig minimization: base=3707 full=7423 leaves diff=2099 split chunks (needed=false): <2099> split chunk #0 of len 2099 into 5 parts testing without sub-chunk 1/5 disabling configs for [atomic_sleep hang memleak ubsan kasan locking], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9fc3a260e0eeb8a8d99e0ec4ad991f11b9d8c35fcc12a991baa7e4b7cf902bf0 run #0: crashed: WARNING in ext4_iomap_begin run #1: crashed: WARNING in ext4_iomap_begin run #2: crashed: WARNING in ext4_iomap_begin run #3: crashed: WARNING in ext4_iomap_begin run #4: crashed: WARNING in ext4_iomap_begin run #5: crashed: WARNING in ext4_iomap_begin run #6: crashed: kernel BUG in ext4_writepages run #7: crashed: WARNING in ext4_iomap_begin run #8: crashed: WARNING in ext4_iomap_begin run #9: crashed: kernel BUG in ext4_writepages representative crash: WARNING in ext4_iomap_begin, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6b74a268cc47854257113c82dd1ccd913fb542dfaf39326f1785fd0195852525 run #0: crashed: WARNING in ext4_iomap_begin run #1: crashed: WARNING in ext4_iomap_begin run #2: crashed: kernel BUG in ext4_writepages run #3: crashed: WARNING in ext4_iomap_begin run #4: crashed: WARNING in ext4_iomap_begin run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: WARNING in ext4_iomap_begin, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [memleak ubsan kasan locking atomic_sleep hang], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: acd08057852c3a3d7061709ce64b0cec02e95203c12f65a457d82be71b56d563 run #0: crashed: WARNING in ext4_iomap_begin run #1: crashed: WARNING in ext4_iomap_begin run #2: crashed: WARNING in ext4_iomap_begin run #3: crashed: WARNING in ext4_iomap_begin run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: WARNING in ext4_iomap_begin, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bc3bb2342ea0dde252ae4d64b27c80b1fdc51a33c12b4b3a83d32cbedda1839c run #0: crashed: WARNING in ext4_iomap_begin run #1: crashed: WARNING in ext4_iomap_begin run #2: crashed: WARNING in ext4_iomap_begin run #3: crashed: WARNING in ext4_iomap_begin run #4: crashed: WARNING in ext4_iomap_begin run #5: crashed: WARNING in ext4_iomap_begin run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in ext4_iomap_begin, types: [WARNING] testing without sub-chunk 5/5 disabling configs for [atomic_sleep hang memleak ubsan kasan locking], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: feb66cc2fba76cfcfceed812cb4c87d7a44779d761e794a3e7aa5b312d56d399 run #0: crashed: WARNING in ext4_iomap_begin run #1: crashed: WARNING in ext4_iomap_begin run #2: crashed: kernel BUG in ext4_writepages run #3: crashed: WARNING in ext4_iomap_begin run #4: crashed: WARNING in ext4_iomap_begin run #5: crashed: WARNING in ext4_iomap_begin run #6: OK run #7: crashed: kernel BUG in ext4_writepages run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in ext4_iomap_begin, types: [WARNING BUG] the chunk can be dropped minimized to 420 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ASYMMETRIC_TPM_KEY_SUBTYPE ATM AX25 BXT_WC_PMIC_OPREGION CFG80211 CMA DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB HAMRADIO HID_PLAYSTATION HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN INTEL_SCU_IPC INTEL_SOC_PMIC_BXTWC IP_SCTP L2TP LIBCRC32C LIBNVDIMM MEDIA_COMMON_OPTIONS MEDIA_DIGITAL_TV_SUPPORT MEDIA_PLATFORM_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_INTEL_PMC_BXT MFD_MT6360 MFD_RETU MMC MTD MTD_UBI NETFILTER_ADVANCED NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NF_CONNTRACK_SNMP NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_ARP NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 NLS_CODEPAGE_860 NLS_CODEPAGE_861 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 NLS_CODEPAGE_865 NLS_CODEPAGE_866 NLS_CODEPAGE_869 NLS_CODEPAGE_874 NLS_CODEPAGE_932 NLS_CODEPAGE_936 NLS_CODEPAGE_949 NLS_CODEPAGE_950 NLS_ISO8859_13 NLS_ISO8859_14 NLS_ISO8859_15 NLS_ISO8859_2 NLS_ISO8859_3 NLS_ISO8859_4 NLS_ISO8859_5 NLS_ISO8859_6 NLS_ISO8859_7 NLS_ISO8859_8 NLS_ISO8859_9 NLS_KOI8_R NLS_KOI8_U NLS_MAC_CELTIC NLS_MAC_CENTEURO NLS_MAC_CROATIAN NLS_MAC_CYRILLIC NLS_MAC_GAELIC NLS_MAC_GREEK NLS_MAC_ICELAND NLS_MAC_INUIT NLS_MAC_ROMAN NLS_MAC_ROMANIAN NLS_MAC_TURKISH NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NTFS_FS NTFS_RW NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN NVME_CORE NVME_FABRICS NVME_FC NVME_MULTIPATH NVME_RDMA NVME_TARGET NVME_TARGET_FC NVME_TARGET_FCLOOP NVME_TARGET_LOOP NVME_TARGET_RDMA NVME_TARGET_TCP NVME_TCP N_GSM N_HDLC OCFS2_DEBUG_FS OCFS2_FS OCFS2_FS_O2CB OCFS2_FS_STATS OCFS2_FS_USERSPACE_CLUSTER OF_GPIO OF_PMEM OMFS_FS OPENVSWITCH OPENVSWITCH_GENEVE OPENVSWITCH_GRE OPENVSWITCH_VXLAN ORANGEFS_FS OSF_PARTITION OVERLAY_FS OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PADATA PAGE_IDLE_FLAG PAGE_REPORTING PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS PHONET PHYLINK PHY_CPCAP_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PLAYSTATION_FF PMIC_OPREGION PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_DYNAMIC PREEMPT_NOTIFIERS PREEMPT_RCU PRISM2_USB PROC_CHILDREN PROC_MEM_ALWAYS_FORCE PSI PSTORE PSTORE_842_COMPRESS PSTORE_COMPRESS PSTORE_DEFLATE_COMPRESS PSTORE_DEFLATE_COMPRESS_DEFAULT PSTORE_LZ4HC_COMPRESS PSTORE_LZ4_COMPRESS PSTORE_LZO_COMPRESS PSTORE_ZSTD_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN R8712U RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_TEA575X RAID6_PQ RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES RC_XBOX_DVD RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGULATOR REGULATOR_FIXED_VOLTAGE REGULATOR_TWL4030 REISERFS_FS REISERFS_FS_POSIX_ACL REISERFS_FS_SECURITY REISERFS_FS_XATTR REISERFS_PROC_INFO RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SAS_ATA SCSI_SAS_ATTRS SCSI_SAS_LIBSAS SCSI_SCAN_ASYNC SCSI_SRP_ATTRS SCTP_COOKIE_HMAC_MD5 SCTP_COOKIE_HMAC_SHA1 SCTP_DEFAULT_COOKIE_HMAC_MD5 SECONDARY_TRUSTED_KEYRING SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SENSORS_AQUACOMPUTER_D5NEXT SENSORS_CORSAIR_CPRO SENSORS_CORSAIR_PSU SENSORS_NZXT_KRAKEN2 SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS_COMMON SMB_SERVER SMC SMC_DIAG SMSC_PHY SMS_SDIO_DRV SMS_SIANO_DEBUGFS SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_LED SND_CTL_VALIDATION SND_DEBUG SND_DMA_SGBUF SND_DRIVERS SND_DUMMY SND_DYNAMIC_MINORS SND_HDA SND_HDA_CODEC_ANALOG SND_HDA_CODEC_CA0110 SND_HDA_CODEC_CA0132 SND_HDA_CODEC_CIRRUS SND_HDA_CODEC_CMEDIA SND_HDA_CODEC_CONEXANT SND_HDA_CODEC_HDMI SND_HDA_CODEC_REALTEK SND_HDA_CODEC_SI3054 SND_HDA_CODEC_SIGMATEL SND_HDA_CODEC_VIA SND_HDA_COMPONENT SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_I915 SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG SND_HRTIMER SND_HWDEP SND_INTEL_DSP_CONFIG SND_INTEL_NHLT SND_INTEL_SOUNDWIRE_ACPI SND_JACK SND_JACK_INPUT_DEV SND_MIXER_OSS SND_OSSEMUL SND_PCI SND_PCM SND_PCMCIA SND_PCM_OSS SND_PCM_OSS_PLUGINS SND_PCM_TIMER SND_PCM_XRUN_DEBUG SND_PROC_FS SND_RAWMIDI SND_SEQUENCER SND_SEQUENCER_OSS SND_SEQ_DEVICE SND_SEQ_DUMMY SND_SEQ_HRTIMER_DEFAULT SND_SEQ_MIDI SND_SEQ_MIDI_EVENT SND_SEQ_VIRMIDI SND_SUPPORT_OLD_API SND_TIMER SND_USB SND_USB_6FIRE SND_USB_AUDIO SND_USB_AUDIO_USE_MEDIA_CONTROLLER SND_USB_CAIAQ SND_USB_CAIAQ_INPUT SND_USB_HIFACE SND_USB_LINE6 SND_USB_POD SND_USB_PODHD SND_USB_TONEPORT SND_USB_UA101 SND_USB_US122L SND_USB_USX2Y SND_USB_VARIAX SND_VERBOSE_PROCFS SND_VIRMIDI SND_VIRTIO SND_VMASTER SND_X86 SOCK_CGROUP_DATA SOCK_VALIDATE_XMIT SOLARIS_X86_PARTITION SONY_FF SOUND SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_DECOMP_SINGLE SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZLIB SQUASHFS_ZSTD SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STAGING STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC SYSV68_PARTITION SYSV_FS TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TASKS_RCU TASKS_RCU_GENERIC TASKS_TRACE_RCU TCG_CRB TCG_TIS TCG_TIS_CORE TCG_TPM TCP_CONG_BBR TCP_CONG_BIC TCP_CONG_CDG TCP_CONG_DCTCP TCP_CONG_HSTCP TCP_CONG_HTCP TCP_CONG_HYBLA TCP_CONG_ILLINOIS TCP_CONG_LP TCP_CONG_NV TCP_CONG_SCALABLE TCP_CONG_VEGAS TCP_CONG_VENO TCP_CONG_WESTWOOD TCP_CONG_YEAH TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THERMAL_NETLINK THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE TOOLS_SUPPORT_RELR TOUCHSCREEN_SUR40 TOUCHSCREEN_USB_3M TOUCHSCREEN_USB_COMPOSITE TOUCHSCREEN_USB_DMC_TSC10 TOUCHSCREEN_USB_E2I TOUCHSCREEN_USB_EASYTOUCH TOUCHSCREEN_USB_EGALAX TOUCHSCREEN_USB_ELO TOUCHSCREEN_USB_ETT_TC45USB TOUCHSCREEN_USB_ETURBO TOUCHSCREEN_USB_GENERAL_TOUCH TOUCHSCREEN_USB_GOTOP TOUCHSCREEN_USB_GUNZE TOUCHSCREEN_USB_IDEALTEK TOUCHSCREEN_USB_IRTOUCH TOUCHSCREEN_USB_ITM TOUCHSCREEN_USB_JASTEC TOUCHSCREEN_USB_NEXIO TOUCHSCREEN_USB_PANJIT TOUCHSCREEN_USB_ZYTRONIC TPM_KEY_PARSER TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TRUSTED_KEYS TTPCI_EEPROM TTY_PRINTK TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_DP_ALTMODE TYPEC_FUSB302 TYPEC_HD3SS3220 TYPEC_MT6360 TYPEC_MUX_INTEL_PMC TYPEC_NVIDIA_ALTMODE TYPEC_RT1711H TYPEC_STUSB160X TYPEC_TCPCI TYPEC_TCPCI_MAXIM TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI TYPEC_WCOVE UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UCSI_ACPI UCSI_CCG UDF_FS UDMABUF UFS_FS UFS_FS_WRITE UHID ULTRIX_PARTITION UNICODE UNIXWARE_DISKLABEL UNIX_DIAG USB4 USB4_NET USBIP_CORE USBIP_HOST USBIP_VHCI_HCD USBIP_VUDC USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_BDC_UDC USB_BELKIN USB_C67X00_HCD USB_CATC USB_CDC_PHONET USB_CDNS3 USB_CDNS3_GADGET USB_CDNS3_HOST USB_CDNS3_PCI_WRAP USB_CDNSP_GADGET USB_CDNSP_HOST USB_CDNSP_PCI USB_CDNS_HOST USB_CDNS_SUPPORT USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_DWC2 USB_GADGET USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VIDEO_V4L2 VXLAN WIRELESS WLAN ZONE_DEVICE] disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed testing current HEAD 68efe5a6c16a05391e3d96025b41e9bf573f968c testing commit 68efe5a6c16a05391e3d96025b41e9bf573f968c gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 89d4ceef78c0dc752119a99e3f9bf0261fefedfb77d4aa288de27c103651eabf run #0: crashed: WARNING in ext4_iomap_begin run #1: crashed: kernel BUG in ext4_ind_map_blocks run #2: crashed: WARNING in ext4_iomap_begin run #3: crashed: WARNING in ext4_iomap_begin run #4: crashed: kernel BUG in ext4_writepages run #5: crashed: WARNING in ext4_iomap_begin run #6: crashed: kernel BUG in ext4_writepages run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: crashed: WARNING in ext4_iomap_begin run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING in ext4_iomap_begin, types: [WARNING BUG] crash still not fixed/happens on the oldest tested release reproducer is flaky (0.35 repro chance estimate) revisions tested: 8, total time: 2h32m50.89767146s (build: 45m18.820598571s, test: 1h45m7.919494804s) crash still not fixed or there were kernel test errors commit msg: Linux 5.15.197 crash: WARNING in ext4_iomap_begin ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6775 at fs/ext4/inode.c:3436 ext4_has_inline_data fs/ext4/ext4.h:3646 [inline] WARNING: CPU: 1 PID: 6775 at fs/ext4/inode.c:3436 ext4_iomap_begin+0x6d/0x290 fs/ext4/inode.c:3436 Modules linked in: CPU: 1 PID: 6775 Comm: syz.6.652 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:ext4_iomap_begin+0x6d/0x290 fs/ext4/inode.c:3436 Code: d3 f8 48 39 d0 0f 8f 31 02 00 00 48 8b 97 b0 fd ff ff 49 89 fd 45 89 c4 f7 c2 00 00 00 10 74 17 66 83 bf a2 05 00 00 00 74 0d <0f> 0b 41 bf de ff ff ff e9 81 01 00 00 48 8b 7c 24 08 44 89 c1 ba RSP: 0018:ffffc900020b3bc0 EFLAGS: 00010206 RAX: 0000000000000000 RBX: 0000000000000011 RCX: 000000000000000b RDX: 0000008410000000 RSI: 0000000000000083 RDI: ffff8881093ecda0 RBP: ffffffff82836c30 R08: 000000000000000b R09: ffffc900020b3d38 R10: 0000000000000000 R11: 0000000000000001 R12: 000000000000000b R13: ffff8881093ecda0 R14: ffff8881093ecda0 R15: ffff8881093ecfb8 FS: 00007f868d1266c0(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc0f57bdd58 CR3: 000000010636d000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: iomap_iter+0x141/0x3a0 fs/iomap/iter.c:74 __iomap_dio_rw+0x1f5/0x810 fs/iomap/direct-io.c:585 iomap_dio_rw+0x5/0x20 fs/iomap/direct-io.c:672 ext4_dio_write_iter fs/ext4/file.c:540 [inline] ext4_file_write_iter+0x6ad/0x740 fs/ext4/file.c:660 call_write_iter include/linux/fs.h:2173 [inline] new_sync_write+0x114/0x1a0 fs/read_write.c:507 vfs_write+0x22d/0x2c0 fs/read_write.c:594 ksys_pwrite64 fs/read_write.c:701 [inline] __do_sys_pwrite64 fs/read_write.c:711 [inline] __se_sys_pwrite64 fs/read_write.c:708 [inline] __x64_sys_pwrite64+0x87/0xc0 fs/read_write.c:708 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f868d2b5be9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f868d126038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007f868d4dcfa0 RCX: 00007f868d2b5be9 RDX: 0000000000000001 RSI: 0000200000000880 RDI: 0000000000000006 RBP: 00007f868d338e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000083 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f868d4dd038 R14: 00007f868d4dcfa0 R15: 00007ffc07ff6818