ci starts bisection 2024-11-14 18:50:00.730733698 +0000 UTC m=+26843.778643621 bisecting cause commit starting from 379d5ee624eda6a897d9e1f7f88c68ea482bd5fa building syzkaller on 77f3eeb755d0c3e79023775a7e72e05dded0f8a1 ensuring issue is reproducible on original commit 379d5ee624eda6a897d9e1f7f88c68ea482bd5fa testing commit 379d5ee624eda6a897d9e1f7f88c68ea482bd5fa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4713e45b63a383651e21a3d70a17e81654b34cf5bc832c33fbd107e3f5b5ce39 all runs: crashed: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc representative crash: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc, 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 379d5ee624eda6a897d9e1f7f88c68ea482bd5fa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e28a4219835dfa82705c42b0de08d2092aa75dcf801e7e60d13f3e2d38311506 all runs: crashed: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc representative crash: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=4045 full=8191 leaves diff=2109 split chunks (needed=false): <2109> split chunk #0 of len 2109 into 5 parts testing without sub-chunk 1/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 379d5ee624eda6a897d9e1f7f88c68ea482bd5fa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c92292e019d4927c0bc16d8d9c46e9e598625f578266b8ebc25783611e5588cc all runs: crashed: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc representative crash: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc, 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 379d5ee624eda6a897d9e1f7f88c68ea482bd5fa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7e707cb60259fa7031f4fc7e516a0b650abeb7cd3f594ea87db417f49767ec24 all runs: crashed: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc representative crash: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 379d5ee624eda6a897d9e1f7f88c68ea482bd5fa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5d3b92c725776e4783e4ca332da9a280e828c63f0d189113e8c32ba1bd31fbaa all runs: crashed: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc representative crash: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 379d5ee624eda6a897d9e1f7f88c68ea482bd5fa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 819cd517e67babace51d2d2420bfd1c06a9949ad017e53e0573fab970ae68c4f all runs: crashed: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc representative crash: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 379d5ee624eda6a897d9e1f7f88c68ea482bd5fa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2eb41a30b846ec7086b71098d7210aabfdedfb14e4a2a5ef955e4f56e6f702c1 all runs: OK false negative chance: 0.000 minimized to 421 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC DVB_CORE EXTCON FB GPIOLIB HID_ZEROPLUS 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 NOP_USB_XCEIV 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_CDNS_HOST USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_MSM USB_CHIPIDEA_NPCM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_MIDI2 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_CONN_GPIO 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_HAPS USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_FSL 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 USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_MIDI2 USB_F_NCM USB_F_OBEX USB_F_PHONET 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USB_GSPCA_XIRLINK_CIT USB_GSPCA_ZC3XX USB_HACKRF USB_HCD_BCMA USB_HCD_SSB USB_HSIC_USB3503 USB_HSIC_USB4604 USB_HSO USB_HUB_USB251XB USB_IDMOUSE USB_IOWARRIOR USB_IPHETH USB_ISIGHTFW USB_ISP116X_HCD USB_ISP1301 USB_ISP1760 USB_ISP1760_DUAL_ROLE USB_ISP1760_HCD USB_ISP1761_UDC USB_KAWETH USB_KC2190 USB_KEENE USB_LAN78XX USB_LCD USB_LD USB_LEDS_TRIGGER_USBPORT USB_LED_TRIG USB_LEGOTOWER USB_LGM_PHY USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 USB_MAX3420_UDC USB_MAX3421_HCD USB_MDC800 USB_MICROTEK USB_MR800 USB_MSI2500 USB_MUSB_DUAL_ROLE USB_MUSB_HDRC USB_MV_U3D USB_MV_UDC USB_NET2272 USB_NET2272_DMA USB_NET2280 USB_NET_AQC111 USB_NET_AX88179_178A USB_NET_AX8817X USB_NET_CDCETHER USB_NET_CDC_EEM USB_NET_CDC_MBIM USB_NET_CDC_NCM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_CH9200 USB_NET_CX82310_ETH USB_NET_DM9601 USB_NET_GL620A USB_NET_HUAWEI_CDC_NCM USB_NET_INT51X1 USB_NET_KALMIA USB_NET_MCS7830 USB_NET_NET1080 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_PCI_RENESAS 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 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 VIDEO 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_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_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_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 XILLYBUS_CLASS XILLYUSB XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA Z3FOLD Z3FOLD_DEPRECATED ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZPOOL ZRAM ZRAM_BACKEND_FORCE_LZO ZRAM_BACKEND_LZO ZRAM_DEF_COMP_LZO ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_842 ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_Z3FOLD_DEPRECATED] disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed picked [v6.11 v6.10 v6.9 v6.7 v6.5 v6.3 v6.1 v5.19 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 34 release tags testing release v6.11 testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eb5656ab8f22172bc37e32271fffc5d3b95921163a8a611fd0fd7efad69c1d52 run #0: crashed: lost connection to test machine run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: lost connection to test machine, types: [UNKNOWN] unable to determine the verdict: 9 good runs (wanted 5), for bad wanted 5 in total, got 10 testing release v6.10 testing commit 0c3836482481200ead7b416ca80c68a29cfdaabd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3690875b080d44beb8595556b25a5a7765380903efe1a4f98561a39c33ea3d74 all runs: OK false negative chance: 0.000 # git bisect start 379d5ee624eda6a897d9e1f7f88c68ea482bd5fa 0c3836482481200ead7b416ca80c68a29cfdaabd Bisecting: 14895 revisions left to test after this (roughly 14 steps) [b66f0b119c96dbb6b976f1d75b7bf69960069bde] Merge tag 'block-6.11-20240906' of git://git.kernel.dk/linux testing commit b66f0b119c96dbb6b976f1d75b7bf69960069bde gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5cd3ba79c5d7fc331b7b350fc7ee0def675a5f74920519e389b00516d95f9838 all runs: OK false negative chance: 0.000 # git bisect good b66f0b119c96dbb6b976f1d75b7bf69960069bde Bisecting: 7490 revisions left to test after this (roughly 13 steps) [726e2d0cf2bbc14e3bf38491cddda1a56fe18663] Merge tag 'dma-mapping-6.12-2024-09-19' of git://git.infradead.org/users/hch/dma-mapping testing commit 726e2d0cf2bbc14e3bf38491cddda1a56fe18663 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7c82b37d57771271097582b91100dfce8bc0a8a8dcb313ff517f22153d06c81d all runs: OK false negative chance: 0.000 # git bisect good 726e2d0cf2bbc14e3bf38491cddda1a56fe18663 Bisecting: 3762 revisions left to test after this (roughly 12 steps) [4965ddb166992557a25848049f1a70e56050eb7a] Merge tag 'usb-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb testing commit 4965ddb166992557a25848049f1a70e56050eb7a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7d126e4725e3dd21f28bebbdaa77fbfecfba11426c8259ea201e6f65537bf122 all runs: OK false negative chance: 0.000 # git bisect good 4965ddb166992557a25848049f1a70e56050eb7a Bisecting: 1883 revisions left to test after this (roughly 11 steps) [a1029768f3931b31aa52790f1dde0c7d6a6552eb] Merge tag 'rcu.fixes.6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux testing commit a1029768f3931b31aa52790f1dde0c7d6a6552eb gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6068f0cf93eafe4527c5e0a0db8bf009997c61d9781391f24e553b787a119dec all runs: OK false negative chance: 0.000 # git bisect good a1029768f3931b31aa52790f1dde0c7d6a6552eb Bisecting: 941 revisions left to test after this (roughly 10 steps) [4236f913808cebef1b9e078726a4e5d56064f7ad] Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi testing commit 4236f913808cebef1b9e078726a4e5d56064f7ad gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1f611774cad0e8c8b63c095ef766357816286ff3ba683693e69058a011e98aa3 all runs: OK false negative chance: 0.000 # git bisect good 4236f913808cebef1b9e078726a4e5d56064f7ad Bisecting: 470 revisions left to test after this (roughly 9 steps) [80fb25341631b75f57b84f99cc35b95ca2aad329] Merge tag 'pwm/for-6.12-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux testing commit 80fb25341631b75f57b84f99cc35b95ca2aad329 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 21f138652879c85289dbd8ed468f15452bc987c5e87b7cc3adb1d62eba35d57e all runs: OK false negative chance: 0.000 # git bisect good 80fb25341631b75f57b84f99cc35b95ca2aad329 Bisecting: 233 revisions left to test after this (roughly 8 steps) [92dda329e337b7ab9cb63f4563dd7a21d001e47c] Merge tag 'landlock-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux testing commit 92dda329e337b7ab9cb63f4563dd7a21d001e47c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8835b415ead24244f3bbf7c423f25c3785ce84bcf19517a3549a9f499b2a0f9e all runs: OK false negative chance: 0.000 # git bisect good 92dda329e337b7ab9cb63f4563dd7a21d001e47c Bisecting: 123 revisions left to test after this (roughly 7 steps) [1850ce1bddf2e0939651ce1c110bc52c796e0f66] Merge branch 'handle-possible-null-trusted-raw_tp-arguments' testing commit 1850ce1bddf2e0939651ce1c110bc52c796e0f66 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ea10519156b9152324bcdfa98e5682cc6c22ad5100bf3e996f7c7b8544aeff05 all runs: OK false negative chance: 0.000 # git bisect good 1850ce1bddf2e0939651ce1c110bc52c796e0f66 Bisecting: 61 revisions left to test after this (roughly 6 steps) [e00931c02568dc6ac76f94b1ab471de05e6fdfe8] bpf: Enable private stack for eligible subprogs testing commit e00931c02568dc6ac76f94b1ab471de05e6fdfe8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 02d4b3ca7afd2258949566cefcdf012e084434a62395b522bc6ae46bf402e70d run #0: crashed: lost connection to test machine run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: lost connection to test machine, types: [UNKNOWN] unable to determine the verdict: 9 good runs (wanted 5), for bad wanted 5 in total, got 10 # git bisect skip e00931c02568dc6ac76f94b1ab471de05e6fdfe8 Bisecting: 61 revisions left to test after this (roughly 6 steps) [d9d4d127e813427afb26ff7e0f0c58989501be84] selftests/bpf: watchdog timer for test_progs testing commit d9d4d127e813427afb26ff7e0f0c58989501be84 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9e5ee97a8facda918f276a4711721bac1289fbbea59eed0a00737cc460468ef4 all runs: OK false negative chance: 0.000 # git bisect good d9d4d127e813427afb26ff7e0f0c58989501be84 Bisecting: 35 revisions left to test after this (roughly 5 steps) [4b49c0ba4eeb31b44462303cac4162476b72c831] Merge tag 'mm-hotfixes-stable-2024-11-12-16-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit 4b49c0ba4eeb31b44462303cac4162476b72c831 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 56a2d484400b648a260f243b0a7cae5cae7b00ff7ada9c6e25ca221e4a194594 all runs: OK false negative chance: 0.000 # git bisect good 4b49c0ba4eeb31b44462303cac4162476b72c831 Bisecting: 17 revisions left to test after this (roughly 4 steps) [b7b31f184f88c0cbd5d53dfc9a6532d851311135] bpftool: Cast variable `var` to long long testing commit b7b31f184f88c0cbd5d53dfc9a6532d851311135 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 316589835be8a78723f0526cb2893df16869c9d95d6256341c2212663236564e all runs: OK false negative chance: 0.000 # git bisect good b7b31f184f88c0cbd5d53dfc9a6532d851311135 Bisecting: 9 revisions left to test after this (roughly 3 steps) [c5f404511890d75c90e4ec06c54f06bd397d96f5] Merge tag 'loongarch-fixes-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson testing commit c5f404511890d75c90e4ec06c54f06bd397d96f5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1e50ab940c424798181355a60899b25f0668a95fead876ab4083d5fc9cceeda9 all runs: OK false negative chance: 0.000 # git bisect good c5f404511890d75c90e4ec06c54f06bd397d96f5 Bisecting: 5 revisions left to test after this (roughly 2 steps) [9f8e716d46c68112484a23d1742d9ec725e082fc] Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf testing commit 9f8e716d46c68112484a23d1742d9ec725e082fc gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 10c93896a49b138cf34fa14c7398a48812896c22eb59dcaf36e3efb05b127bf6 run #0: crashed: lost connection to test machine run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: lost connection to test machine, types: [UNKNOWN] unable to determine the verdict: 9 good runs (wanted 5), for bad wanted 5 in total, got 10 # git bisect skip 9f8e716d46c68112484a23d1742d9ec725e082fc Bisecting: 5 revisions left to test after this (roughly 2 steps) [b41ec3e6053a1e408da8ce02be6cc8885aa41848] samples/bpf: Remove unused variable in xdp2skb_meta_kern.c testing commit b41ec3e6053a1e408da8ce02be6cc8885aa41848 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2b2c37808f5b0ac5d40260a0de08cc98434edc6b00e0ab420fc7c9dc76a15efc run #0: basic kernel testing failed: lost connection to test machine run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK false negative chance: 0.000 # git bisect good b41ec3e6053a1e408da8ce02be6cc8885aa41848 Bisecting: 3 revisions left to test after this (roughly 2 steps) [b795379757eb054925fbb6783559c86f01c1a614] bpf: Introduce range_tree data structure and use it in bpf arena testing commit b795379757eb054925fbb6783559c86f01c1a614 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 72f23c9d432c2847552ad0894a5f9ebc4f3730cd9675f4720ce49a9346830e14 all runs: crashed: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc representative crash: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc, types: [UNKNOWN] # git bisect bad b795379757eb054925fbb6783559c86f01c1a614 Bisecting: 2 revisions left to test after this (roughly 2 steps) [fb86c42a2a5d44e849ddfbc98b8d2f4f40d36ee3] bpf: Fix mismatched RCU unlock flavour in bpf_out_neigh_v6 testing commit fb86c42a2a5d44e849ddfbc98b8d2f4f40d36ee3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 998d0847039127f79ae18b755f679d65adaee82d7e3965c911790825895c30d0 all runs: OK false negative chance: 0.000 # git bisect good fb86c42a2a5d44e849ddfbc98b8d2f4f40d36ee3 Bisecting: 0 revisions left to test after this (roughly 1 step) [871438170326dc28125cb823d19c1d5c5304474d] Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf testing commit 871438170326dc28125cb823d19c1d5c5304474d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ff2983e6d8f540467793c21d867355e63d6616b023baa0dbc4bf49704d5ca5db all runs: OK false negative chance: 0.000 # git bisect good 871438170326dc28125cb823d19c1d5c5304474d b795379757eb054925fbb6783559c86f01c1a614 is the first bad commit commit b795379757eb054925fbb6783559c86f01c1a614 Author: Alexei Starovoitov Date: Thu Nov 7 18:56:15 2024 -0800 bpf: Introduce range_tree data structure and use it in bpf arena Introduce range_tree data structure and use it in bpf arena to track ranges of allocated pages. range_tree is a large bitmap that is implemented as interval tree plus rbtree. The contiguous sequence of bits represents unallocated pages. Signed-off-by: Alexei Starovoitov Signed-off-by: Andrii Nakryiko Acked-by: Kumar Kartikeya Dwivedi Link: https://lore.kernel.org/bpf/20241108025616.17625-2-alexei.starovoitov@gmail.com kernel/bpf/Makefile | 2 +- kernel/bpf/arena.c | 34 ++++--- kernel/bpf/range_tree.c | 262 ++++++++++++++++++++++++++++++++++++++++++++++++ kernel/bpf/range_tree.h | 21 ++++ 4 files changed, 304 insertions(+), 15 deletions(-) create mode 100644 kernel/bpf/range_tree.c create mode 100644 kernel/bpf/range_tree.h accumulated error probability: 0.00 culprit signature: 72f23c9d432c2847552ad0894a5f9ebc4f3730cd9675f4720ce49a9346830e14 parent signature: ff2983e6d8f540467793c21d867355e63d6616b023baa0dbc4bf49704d5ca5db revisions tested: 27, total time: 8h58m22.119233025s (build: 5h2m13.442473282s, test: 3h32m24.498140865s) first bad commit: b795379757eb054925fbb6783559c86f01c1a614 bpf: Introduce range_tree data structure and use it in bpf arena recipients (to): ["andrii@kernel.org" "ast@kernel.org" "memxor@gmail.com"] recipients (cc): [] crash: BUG: using smp_processor_id() in preemptible code in bpf_mem_alloc BUG: using smp_processor_id() in preemptible [00000000] code: syz.2.15/3846 caller is bpf_mem_alloc+0x5e/0x90 kernel/bpf/memalloc.c:903 CPU: 1 UID: 0 PID: 3846 Comm: syz.2.15 Not tainted 6.12.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x3e/0xe0 lib/dump_stack.c:120 check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49 bpf_mem_alloc+0x5e/0x90 kernel/bpf/memalloc.c:903 range_tree_set+0x19e/0x490 kernel/bpf/range_tree.c:238 arena_map_alloc+0x122/0x160 kernel/bpf/arena.c:137 map_create+0x245/0x3d0 kernel/bpf/syscall.c:1441 __sys_bpf+0x4e2/0x5a0 kernel/bpf/syscall.c:5741 __do_sys_bpf kernel/bpf/syscall.c:5866 [inline] __se_sys_bpf kernel/bpf/syscall.c:5864 [inline] __x64_sys_bpf+0x17/0x20 kernel/bpf/syscall.c:5864 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff24e58e719 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:00007ff24e009038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007ff24e745f80 RCX: 00007ff24e58e719 RDX: 0000000000000048 RSI: 0000000020003940 RDI: 0000000000000000 RBP: 00007ff24e60175e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007ff24e745f80 R15: 00007ffc85501d68