ci starts bisection 2024-05-04 13:57:32.295341223 +0000 UTC m=+61894.488593367 bisecting cause commit starting from f99c5f563c174a49ea1cbf4754539b05cfde40c4 building syzkaller on c8349e48534ea6d8f01515335d95de8ebf5da8df ensuring issue is reproducible on original commit f99c5f563c174a49ea1cbf4754539b05cfde40c4 testing commit f99c5f563c174a49ea1cbf4754539b05cfde40c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1336e9f128573edf6d586b49d9c4643c959ba965f9f4beb3075b564d69ab3f35 run #0: crashed: WARNING in __xdp_reg_mem_model run #1: crashed: WARNING in __xdp_reg_mem_model run #2: crashed: WARNING in __xdp_reg_mem_model run #3: crashed: WARNING in __xdp_reg_mem_model run #4: crashed: WARNING in __xdp_reg_mem_model run #5: crashed: WARNING in __xdp_reg_mem_model run #6: crashed: WARNING in __xdp_reg_mem_model run #7: crashed: WARNING in __xdp_reg_mem_model run #8: crashed: WARNING in __xdp_reg_mem_model run #9: crashed: WARNING in __xdp_reg_mem_model run #10: crashed: WARNING in __xdp_reg_mem_model run #11: crashed: WARNING in __xdp_reg_mem_model run #12: crashed: WARNING in __xdp_reg_mem_model run #13: crashed: WARNING in __xdp_reg_mem_model run #14: crashed: WARNING in __xdp_reg_mem_model run #15: crashed: WARNING in __xdp_reg_mem_model run #16: crashed: WARNING in __xdp_reg_mem_model run #17: crashed: WARNING in __xdp_reg_mem_model run #18: OK run #19: OK representative crash: WARNING in __xdp_reg_mem_model, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit f99c5f563c174a49ea1cbf4754539b05cfde40c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f89a0ec7e0a06f7b72d5b2bd931592698726fd06603af41c6cfd6a05f8af9c0b all runs: crashed: WARNING in __xdp_reg_mem_model representative crash: WARNING in __xdp_reg_mem_model, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed kconfig minimization: base=3976 full=7972 leaves diff=2011 split chunks (needed=false): <2011> split chunk #0 of len 2011 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 f99c5f563c174a49ea1cbf4754539b05cfde40c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2d7ef293bc2499d219b382591af5490d9d6e1ef006279d460f28975f9c5be8c2 all runs: crashed: WARNING in __xdp_reg_mem_model representative crash: WARNING in __xdp_reg_mem_model, types: [WARNING] 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 f99c5f563c174a49ea1cbf4754539b05cfde40c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 81af5296762c3c1ba482a58dc2be2287a42eecc248cb1c29d36b8c8b319744c4 all runs: crashed: WARNING in __xdp_reg_mem_model representative crash: WARNING in __xdp_reg_mem_model, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit f99c5f563c174a49ea1cbf4754539b05cfde40c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 209bfaefc183a0d63ac48e75212f471ff67159360bbe90fd421fb8a6ec578edd all runs: crashed: WARNING in __xdp_reg_mem_model representative crash: WARNING in __xdp_reg_mem_model, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit f99c5f563c174a49ea1cbf4754539b05cfde40c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9c9e61bc37fa7ed25b4b16ad81119060ea5494b191cbb43b97b8c2c33901511d all runs: crashed: WARNING in __xdp_reg_mem_model representative crash: WARNING in __xdp_reg_mem_model, 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 f99c5f563c174a49ea1cbf4754539b05cfde40c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: efb64db9a517aaf0ed2b29602c82999d4c944a02cc91812190625b702730bcd9 all runs: OK false negative chance: 0.000 minimized to 399 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_ZSTD DVB_CORE EXTCON FB GPIOLIB HAVE_KVM HID_ZEROPLUS HW_CONSOLE I2C_MUX IIO IOMMUFD IRQ_REMAP KVM KVM_INTEL LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_VIPERBOARD PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SND SOUND SPI SSB TAP TARGET_CORE TUN USB_AMD5536UDC USB_ATM USB_CONFIGFS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 USB_EMI62 USB_EPSON2888 USB_EZUSB_FX2 USB_FEW_INIT_RETRIES USB_F_ACM USB_F_ECM USB_F_EEM 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USB_NET_PLUSB USB_NET_QMI_WWAN USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_OXU210HP_HCD USB_PEGASUS USB_PULSE8_CEC USB_PWC USB_PWC_INPUT_EVDEV USB_PXA27X USB_R8A66597 USB_R8A66597_HCD USB_RAINSHADOW_CEC USB_RAREMONO USB_RAW_GADGET USB_RTL8150 USB_RTL8152 USB_RTL8153_ECM USB_S2255 USB_SERIAL USB_SERIAL_AIRCABLE USB_SERIAL_ARK3116 USB_SERIAL_BELKIN USB_SERIAL_CH341 USB_SERIAL_CONSOLE USB_SERIAL_CP210X USB_SERIAL_CYBERJACK USB_SERIAL_CYPRESS_M8 USB_SERIAL_DEBUG USB_SERIAL_DIGI_ACCELEPORT USB_SERIAL_EDGEPORT USB_SERIAL_EDGEPORT_TI USB_SERIAL_EMPEG USB_SERIAL_F81232 USB_SERIAL_F8153X USB_SERIAL_FTDI_SIO USB_SERIAL_GARMIN USB_SERIAL_GENERIC USB_SERIAL_IPAQ USB_SERIAL_IPW USB_SERIAL_IR USB_SERIAL_IUU USB_SERIAL_KEYSPAN USB_SERIAL_KEYSPAN_PDA USB_SERIAL_KLSI USB_SERIAL_KOBIL_SCT USB_SERIAL_MCT_U232 USB_SERIAL_METRO USB_SERIAL_MOS7715_PARPORT USB_SERIAL_MOS7720 USB_SERIAL_MOS7840 USB_SERIAL_MXUPORT USB_SERIAL_NAVMAN USB_SERIAL_OMNINET USB_SERIAL_OPTICON USB_SERIAL_OPTION USB_SERIAL_OTI6858 USB_SERIAL_PL2303 USB_SERIAL_QCAUX USB_SERIAL_QT2 USB_SERIAL_QUALCOMM USB_SERIAL_SAFE USB_SERIAL_SIERRAWIRELESS USB_SERIAL_SIMPLE USB_SERIAL_SPCP8X5 USB_SERIAL_SSU100 USB_SERIAL_SYMBOL USB_SERIAL_TI USB_SERIAL_UPD78F0730 USB_SERIAL_VISOR USB_SERIAL_WHITEHEAT USB_SERIAL_WISHBONE USB_SERIAL_WWAN USB_SERIAL_XR USB_SERIAL_XSENS_MT USB_SEVSEG USB_SI470X USB_SI4713 USB_SIERRA_NET USB_SISUSBVGA USB_SL811_CS USB_SL811_HCD USB_SL811_HCD_ISO USB_SNP_CORE USB_SPEEDTOUCH USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_ENE_UB6250 USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VDPA_USER VETH VFIO VFIO_DEVICE_CDEV VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_PCI_MMAP VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_IOTLB VHOST_NET VHOST_RING VHOST_TASK VHOST_VDPA VHOST_VSOCK VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOMODE_HELPERS VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CMDLINE VIDEO_CS53L32A VIDEO_CX231XX VIDEO_CX231XX_ALSA VIDEO_CX231XX_DVB VIDEO_CX231XX_RC VIDEO_CX2341X VIDEO_CX25840 VIDEO_DEV VIDEO_EM28XX VIDEO_EM28XX_ALSA VIDEO_EM28XX_DVB VIDEO_EM28XX_RC VIDEO_EM28XX_V4L2 VIDEO_GO7007 VIDEO_GO7007_LOADER VIDEO_GO7007_USB VIDEO_GO7007_USB_S2250_BOARD VIDEO_HDPVR VIDEO_MSP3400 VIDEO_NOMODESET VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2_I2C VIDEO_V4L2_SUBDEV_API VIDEO_V4L2_TPG VIDEO_VICODEC VIDEO_VIM2M VIDEO_VIMC VIDEO_VIVID VIDEO_VIVID_CEC VIDEO_WM8775 VIPERBOARD_ADC VIRTIO_BALLOON VIRTIO_DMA_SHARED_BUFFER VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMAP_PFN VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXFS_FS WANT_DEV_COREDUMP WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_PURELIFI WLAN_VENDOR_SILABS X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK X86_X2APIC X86_X32_ABI XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_FS XFS_POSIX_ACL XFS_QUOTA XFS_RT XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZSMALLOC] disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed picked [v6.8 v6.7 v6.6 v6.4 v6.2 v6.0 v5.18 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 31 release tags testing release v6.8 testing commit e8f897f4afef0031fe618a8e94127a0934896aba gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0898b8acf2d1d8d26811af4d129e283d6d03e057888853cea0ee1eef70c5c556 all runs: OK false negative chance: 0.000 # git bisect start f99c5f563c174a49ea1cbf4754539b05cfde40c4 e8f897f4afef0031fe618a8e94127a0934896aba Bisecting: 2657 revisions left to test after this (roughly 11 steps) [b32273ee89a866b01b316b9a8de407efde01090c] Merge tag 'execve-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux testing commit b32273ee89a866b01b316b9a8de407efde01090c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 44e0223c8a02e8c4f327e24df494c1a3c0db3e1a9f99664d9c3a3d166030e0b5 all runs: OK false negative chance: 0.000 # git bisect good b32273ee89a866b01b316b9a8de407efde01090c Bisecting: 1328 revisions left to test after this (roughly 10 steps) [8b0fdca33d3d31687895ad78009193485c9aae2b] wifi: mt76: mt7915: update mt798x_wmac_adie_patch_7976 testing commit 8b0fdca33d3d31687895ad78009193485c9aae2b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: df80494f45fa066d129bb9ed3eeac1cf1e8bb545eed3f331ad855e935ad444c3 all runs: crashed: WARNING in __xdp_reg_mem_model representative crash: WARNING in __xdp_reg_mem_model, types: [WARNING] # git bisect bad 8b0fdca33d3d31687895ad78009193485c9aae2b Bisecting: 664 revisions left to test after this (roughly 9 steps) [876e32473d1dd61cb58ece9965c3b3ea3ab307ab] selftests: net: include forwarding lib testing commit 876e32473d1dd61cb58ece9965c3b3ea3ab307ab gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e432487b93bb0260164505f3d5d4bca9b83f23f91f0fb14c258fd4929b98d80c all runs: OK false negative chance: 0.000 # git bisect good 876e32473d1dd61cb58ece9965c3b3ea3ab307ab Bisecting: 332 revisions left to test after this (roughly 8 steps) [598481c6eb20b29088caa0c69085904b2ca08674] wifi: rtw89: 8922a: implement AP mode related reg for BE generation testing commit 598481c6eb20b29088caa0c69085904b2ca08674 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a68612b8dc02baa5c61c382fb1d62d95a900743dadb28949d9b209711738a2b5 all runs: OK false negative chance: 0.000 # git bisect good 598481c6eb20b29088caa0c69085904b2ca08674 Bisecting: 166 revisions left to test after this (roughly 7 steps) [a71a50e391bf00fdc88bb13a867620c59ad744da] net: ravb: Do not apply features to hardware if the interface is down testing commit a71a50e391bf00fdc88bb13a867620c59ad744da gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3a054b73e46465859e6109533a539f98fd6b31918bfa797c7b252c7b3bb39252 all runs: crashed: WARNING in __xdp_reg_mem_model representative crash: WARNING in __xdp_reg_mem_model, types: [WARNING] # git bisect bad a71a50e391bf00fdc88bb13a867620c59ad744da Bisecting: 82 revisions left to test after this (roughly 6 steps) [32e4a5447ed9fa904a2dfcf4609c64bce053b4e8] net: dsa: realtek: fix digital interface select macro for EXT0 testing commit 32e4a5447ed9fa904a2dfcf4609c64bce053b4e8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e6a22da5c7011ffb0a8ffaaa4114359ddd5f9520fdcc164631c8e0ee428a535e all runs: OK false negative chance: 0.000 # git bisect good 32e4a5447ed9fa904a2dfcf4609c64bce053b4e8 Bisecting: 41 revisions left to test after this (roughly 5 steps) [85455c795c07882091b15c0613f78d4567d9be36] eventpoll: support busy poll per epoll instance testing commit 85455c795c07882091b15c0613f78d4567d9be36 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: adbbfdfda65445d6c56e265f2342052b677f463599afce0afad8dc66b1d75c39 all runs: crashed: WARNING in __xdp_reg_mem_model representative crash: WARNING in __xdp_reg_mem_model, types: [WARNING] # git bisect bad 85455c795c07882091b15c0613f78d4567d9be36 Bisecting: 20 revisions left to test after this (roughly 4 steps) [2ea9b94c502f6681a453c036294d332511915743] Merge patch series "can: m_can: Optimizations for m_can/tcan part 2" testing commit 2ea9b94c502f6681a453c036294d332511915743 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e7c126726995858a1345de5d4d17e03f589e47d3771c5f01790fa6918448b002 all runs: OK false negative chance: 0.000 # git bisect good 2ea9b94c502f6681a453c036294d332511915743 Bisecting: 8 revisions left to test after this (roughly 3 steps) [e1a00373e1305578cd09526aa056940409e6b877] Merge tag 'linux-can-next-for-6.9-20240213' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next testing commit e1a00373e1305578cd09526aa056940409e6b877 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 602fa8108594daa8e7ed95bbe90815e6485be730bbe8e3f49657cd0e1e538d74 all runs: crashed: WARNING in __xdp_reg_mem_model representative crash: WARNING in __xdp_reg_mem_model, types: [WARNING] # git bisect bad e1a00373e1305578cd09526aa056940409e6b877 Bisecting: 5 revisions left to test after this (roughly 3 steps) [73b8f5015889d4b5fbd885fa310ad8905fe50e4f] MAINTAINERS: can: xilinx_can: remove Naga Sureshkumar Relli testing commit 73b8f5015889d4b5fbd885fa310ad8905fe50e4f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 388219a475838c99497dee26e8b317c6a4e80e8a75666707c07fb8ce67e13c0f all runs: OK false negative chance: 0.000 # git bisect good 73b8f5015889d4b5fbd885fa310ad8905fe50e4f Bisecting: 2 revisions left to test after this (roughly 2 steps) [e6d5dbdd20aa6a86974af51deb9414cd2e7794cb] xdp: add multi-buff support for xdp running in generic mode testing commit e6d5dbdd20aa6a86974af51deb9414cd2e7794cb gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 77d4a6ae3d998bf6ca7ee76b36b879ad8e67ba690f5ca05eccd3cbf06bf5ce59 all runs: crashed: WARNING in __xdp_reg_mem_model representative crash: WARNING in __xdp_reg_mem_model, types: [WARNING] # git bisect bad e6d5dbdd20aa6a86974af51deb9414cd2e7794cb Bisecting: 0 revisions left to test after this (roughly 1 step) [4d2bb0bfe8741a8778e0053f31a4e0f0cba80e8b] xdp: rely on skb pointer reference in do_xdp_generic and netif_receive_generic_xdp testing commit 4d2bb0bfe8741a8778e0053f31a4e0f0cba80e8b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5bfbb9abe549e7252624ffe5c7e5fc612c3df82e9def857c22601ff0337ca822 run #0: crashed: WARNING in __xdp_reg_mem_model run #1: crashed: WARNING in __xdp_reg_mem_model run #2: crashed: WARNING in __xdp_reg_mem_model run #3: crashed: WARNING in __xdp_reg_mem_model run #4: crashed: WARNING in __xdp_reg_mem_model run #5: crashed: WARNING in __xdp_reg_mem_model run #6: crashed: WARNING in __xdp_reg_mem_model run #7: crashed: WARNING in __xdp_reg_mem_model run #8: crashed: WARNING in __xdp_reg_mem_model run #9: OK representative crash: WARNING in __xdp_reg_mem_model, types: [WARNING] # git bisect bad 4d2bb0bfe8741a8778e0053f31a4e0f0cba80e8b Bisecting: 0 revisions left to test after this (roughly 0 steps) [2b0cfa6e49566c8fa6759734cf821aa6e8271a9e] net: add generic percpu page_pool allocator testing commit 2b0cfa6e49566c8fa6759734cf821aa6e8271a9e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 07769b7f1f54b3ba0f1123f24f65d1b9ba332d38981e46dd6aa4ddd98402cfc3 all runs: crashed: WARNING in __xdp_reg_mem_model representative crash: WARNING in __xdp_reg_mem_model, types: [WARNING] # git bisect bad 2b0cfa6e49566c8fa6759734cf821aa6e8271a9e 2b0cfa6e49566c8fa6759734cf821aa6e8271a9e is the first bad commit commit 2b0cfa6e49566c8fa6759734cf821aa6e8271a9e Author: Lorenzo Bianconi Date: Mon Feb 12 10:50:54 2024 +0100 net: add generic percpu page_pool allocator Introduce generic percpu page_pools allocator. Moreover add page_pool_create_percpu() and cpuid filed in page_pool struct in order to recycle the page in the page_pool "hot" cache if napi_pp_put_page() is running on the same cpu. This is a preliminary patch to add xdp multi-buff support for xdp running in generic mode. Acked-by: Jesper Dangaard Brouer Reviewed-by: Toke Hoiland-Jorgensen Signed-off-by: Lorenzo Bianconi Link: https://lore.kernel.org/r/80bc4285228b6f4220cd03de1999d86e46e3fcbd.1707729884.git.lorenzo@kernel.org Signed-off-by: Jakub Kicinski include/net/page_pool/types.h | 3 +++ net/core/dev.c | 45 +++++++++++++++++++++++++++++++++++++++++++ net/core/page_pool.c | 23 ++++++++++++++++++---- net/core/skbuff.c | 5 +++-- 4 files changed, 70 insertions(+), 6 deletions(-) accumulated error probability: 0.00 culprit signature: 07769b7f1f54b3ba0f1123f24f65d1b9ba332d38981e46dd6aa4ddd98402cfc3 parent signature: e6a22da5c7011ffb0a8ffaaa4114359ddd5f9520fdcc164631c8e0ee428a535e revisions tested: 21, total time: 4h5m12.991058498s (build: 1h44m53.537823082s, test: 2h7m58.34195491s) first bad commit: 2b0cfa6e49566c8fa6759734cf821aa6e8271a9e net: add generic percpu page_pool allocator recipients (to): ["hawk@kernel.org" "kuba@kernel.org" "lorenzo@kernel.org" "toke@redhat.com"] recipients (cc): [] crash: WARNING in __xdp_reg_mem_model RDX: 0000000000000050 RSI: 0000000020000000 RDI: 000000000000000a RBP: 00007f812dd2e120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 000000000000000b R14: 00007f812e2daf80 R15: 00007ffed70df868 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 2795 at net/core/xdp.c:298 __xdp_reg_mem_model+0x20c/0x260 net/core/xdp.c:298 Modules linked in: CPU: 1 PID: 2795 Comm: syz-executor.0 Not tainted 6.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__xdp_reg_mem_model+0x20c/0x260 net/core/xdp.c:298 Code: 00 00 48 c7 c7 20 43 50 83 e8 d0 d2 32 00 eb 3a 89 c5 48 89 df e8 f4 6a 1d ff 4c 63 ed 48 c7 c7 20 43 50 83 e8 b5 d2 32 00 90 <0f> 0b 90 eb 1b 89 6c 24 04 48 c7 c7 20 43 50 83 e8 9f d2 32 00 4c RSP: 0018:ffffc9000143bab0 EFLAGS: 00010286 RAX: 365367b934fff400 RBX: 0000000000000040 RCX: 0000000000000000 RDX: ffff888118a93680 RSI: ffffffff82eaaa07 RDI: ffffffff82f08314 RBP: ffffc9000143bd48 R08: 0000000000000dc0 R09: 00000000ffffffff R10: 00000000ffffffff R11: 00000000ffffdfff R12: 0000000000000002 R13: fffffffffffffff4 R14: ffffc9000143bca0 R15: ffff888116a11000 FS: 00007f812dd2e6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f812dd2dff8 CR3: 0000000111fc6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: xdp_reg_mem_model+0x9/0x20 net/core/xdp.c:343 xdp_test_run_setup net/bpf/test_run.c:187 [inline] bpf_test_run_xdp_live+0x18f/0x8e0 net/bpf/test_run.c:375 bpf_prog_test_run_xdp+0x2d0/0x4a0 net/bpf/test_run.c:1265 bpf_prog_test_run+0xe2/0x100 kernel/bpf/syscall.c:4188 __sys_bpf+0x2ff/0x5a0 kernel/bpf/syscall.c:5591 __do_sys_bpf kernel/bpf/syscall.c:5680 [inline] __se_sys_bpf kernel/bpf/syscall.c:5678 [inline] __x64_sys_bpf+0x17/0x20 kernel/bpf/syscall.c:5678 do_syscall_64+0xe6/0x230 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f812e1ace69 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:00007f812dd2e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f812e2daf80 RCX: 00007f812e1ace69 RDX: 0000000000000050 RSI: 0000000020000000 RDI: 000000000000000a RBP: 00007f812dd2e120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 000000000000000b R14: 00007f812e2daf80 R15: 00007ffed70df868