ci starts bisection 2024-01-02 03:46:18.710155635 +0000 UTC m=+897206.306920843 bisecting cause commit starting from 610a9b8f49fbcf1100716370d3b5f6f884a2835a building syzkaller on fb427a0782000106c62de76d251e5a02de5406a9 ensuring issue is reproducible on original commit 610a9b8f49fbcf1100716370d3b5f6f884a2835a testing commit 610a9b8f49fbcf1100716370d3b5f6f884a2835a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 41537e44c90e580433808392f6b0221d5b630c0fc0f89e0dd18887378e05258f all runs: crashed: WARNING in signal_wake_up_state representative crash: WARNING in signal_wake_up_state, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 610a9b8f49fbcf1100716370d3b5f6f884a2835a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a85b072d51e06494dd5489b7d26ddc4c86b672e575a113da3c415d54a9a9c877 all runs: crashed: WARNING in signal_wake_up_state representative crash: WARNING in signal_wake_up_state, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed kconfig minimization: base=3923 full=7659 leaves diff=2005 split chunks (needed=false): <2005> split chunk #0 of len 2005 into 5 parts testing without sub-chunk 1/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 610a9b8f49fbcf1100716370d3b5f6f884a2835a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e3d6dd85ffccf95226c2a17ddf1d438197b04e749989ac2699c52922d911e556 all runs: crashed: WARNING in signal_wake_up_state representative crash: WARNING in signal_wake_up_state, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 610a9b8f49fbcf1100716370d3b5f6f884a2835a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1945807d78a596f09b5a8aa9cbe3570d09ba4b8d8181ca9963bbf9d4bc4924fe all runs: crashed: WARNING in signal_wake_up_state representative crash: WARNING in signal_wake_up_state, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 610a9b8f49fbcf1100716370d3b5f6f884a2835a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3b686655154582a9b76e437d154b72b51a7a89f353800c28e5821354d36e0223 all runs: crashed: WARNING in signal_wake_up_state representative crash: WARNING in signal_wake_up_state, 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 610a9b8f49fbcf1100716370d3b5f6f884a2835a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 93fed8b7525c196ba931b539a0c2260b74a778868f13c9c72267588a006b7b6b all runs: crashed: WARNING in signal_wake_up_state representative crash: WARNING in signal_wake_up_state, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 610a9b8f49fbcf1100716370d3b5f6f884a2835a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d516b4730e37c962bec8cd11ff0be6426f301d53738e24d29704dee285cb5dd5 all runs: OK false negative chance: 0.000 minimized to 401 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_LZO CRYPTO_ZSTD 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 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_FS 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 USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB USB_F_SUBSET USB_F_TCM USB_F_UAC1 USB_F_UAC1_LEGACY USB_F_UAC2 USB_F_UVC USB_GADGET USB_GADGETFS USB_GADGET_DEBUG_FILES USB_GADGET_DEBUG_FS USB_GL860 USB_GOKU USB_GPIO_VBUS USB_GR_UDC USB_GSPCA USB_GSPCA_BENQ USB_GSPCA_CONEX USB_GSPCA_CPIA1 USB_GSPCA_DTCS033 USB_GSPCA_ETOMS USB_GSPCA_FINEPIX USB_GSPCA_JEILINJ USB_GSPCA_JL2005BCD USB_GSPCA_KINECT USB_GSPCA_KONICA USB_GSPCA_MARS USB_GSPCA_MR97310A USB_GSPCA_NW80X USB_GSPCA_OV519 USB_GSPCA_OV534 USB_GSPCA_OV534_9 USB_GSPCA_PAC207 USB_GSPCA_PAC7302 USB_GSPCA_PAC7311 USB_GSPCA_SE401 USB_GSPCA_SN9C2028 USB_GSPCA_SN9C20X USB_GSPCA_SONIXB USB_GSPCA_SONIXJ USB_GSPCA_SPCA1528 USB_GSPCA_SPCA500 USB_GSPCA_SPCA501 USB_GSPCA_SPCA505 USB_GSPCA_SPCA506 USB_GSPCA_SPCA508 USB_GSPCA_SPCA561 USB_GSPCA_SQ905 USB_GSPCA_SQ905C USB_GSPCA_SQ930X USB_GSPCA_STK014 USB_GSPCA_STK1135 USB_GSPCA_STV0680 USB_GSPCA_SUNPLUS USB_GSPCA_T613 USB_GSPCA_TOPRO USB_GSPCA_TOUPTEK USB_GSPCA_TV8532 USB_GSPCA_VC032X USB_GSPCA_VICAM 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_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 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_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_RNDIS_WLAN 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 XARRAY_MULTI 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_ZPOOL_DEFAULT_ZSMALLOC] disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed picked [v6.6 v6.5 v6.4 v6.2 v6.0 v5.18 v5.16 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 29 release tags testing release v6.6 testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: df9c596670bf85d0c4f39a9d8d61df1ade0872ee68f72abb837132504e195b3c all runs: crashed: WARNING in signal_wake_up_state representative crash: WARNING in signal_wake_up_state, types: [WARNING] testing release v6.5 testing commit 2dde18cd1d8fac735875f2e4987f11817cc0bc2c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d55d4d4c4151f5a7f3a8625b0147b99cdf6ff162d798c13477282955de34d7fc all runs: crashed: WARNING in signal_wake_up_state representative crash: WARNING in signal_wake_up_state, types: [WARNING] testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5987604f34273d13c63211375fd9a61ddd6e4281293cf635a9b87c50c7c15cf4 all runs: crashed: WARNING in signal_wake_up_state representative crash: WARNING in signal_wake_up_state, types: [WARNING] testing release v6.2 testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d803240f2974722e7219c24f5c666407d0eecf7070aad38df7dfec17e4fc5cbc all runs: OK false negative chance: 0.000 # git bisect start 6995e2de6891c724bfeb2db33d7b87775f913ad1 c9c3395d5e3dcc6daee66c6908354d47bf98cb0c Bisecting: 15817 revisions left to test after this (roughly 14 steps) [ce7928f7cf988e3f20ec3cca050838b266e9ef14] Merge tag 'wireless-next-2023-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next testing commit ce7928f7cf988e3f20ec3cca050838b266e9ef14 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bfa9d8422f445a7dc03b9f9529f40af320fcaae1d03869a519405c1c1ca24fe9 all runs: OK false negative chance: 0.000 # git bisect good ce7928f7cf988e3f20ec3cca050838b266e9ef14 Bisecting: 7904 revisions left to test after this (roughly 13 steps) [34b62f186db9614e55d021f8c58d22fc44c57911] Merge tag 'pci-v6.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci testing commit 34b62f186db9614e55d021f8c58d22fc44c57911 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b8e050dd222e29453360e2c359e53ef6cda05b362ef6241e8cdcd664b2c4a1d5 all runs: OK false negative chance: 0.000 # git bisect good 34b62f186db9614e55d021f8c58d22fc44c57911 Bisecting: 3949 revisions left to test after this (roughly 12 steps) [26c009dffca89b0f8fe7facc41d1ccf88a66825a] Merge tag '6.4-rc-smb3-client-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6 testing commit 26c009dffca89b0f8fe7facc41d1ccf88a66825a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e0dca819d6da7116d3c8e34170a22848da0131d5cd2b462e5bfbb2a50b1ebf96 all runs: OK false negative chance: 0.000 # git bisect good 26c009dffca89b0f8fe7facc41d1ccf88a66825a Bisecting: 1979 revisions left to test after this (roughly 11 steps) [adfbf653a3ba6bb8bbb84ed90bf4f1533db545d3] Merge tag 'fbdev-for-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev testing commit adfbf653a3ba6bb8bbb84ed90bf4f1533db545d3 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 33baca6560b103272073ed0d0054bd4a421bf753793d1839235b0091a4b5361d all runs: OK false negative chance: 0.000 # git bisect good adfbf653a3ba6bb8bbb84ed90bf4f1533db545d3 Bisecting: 989 revisions left to test after this (roughly 10 steps) [6c242c64a09e78349fb0a5f0a6f8076a3d7c0bb4] Bluetooth: ISO: don't try to remove CIG if there are bound CIS left testing commit 6c242c64a09e78349fb0a5f0a6f8076a3d7c0bb4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5af19dbe1c86fecd746b8b2b08d068a687af80217087cd7b1805ef97fb33c1b4 all runs: crashed: WARNING in signal_wake_up_state representative crash: WARNING in signal_wake_up_state, types: [WARNING] # git bisect bad 6c242c64a09e78349fb0a5f0a6f8076a3d7c0bb4 Bisecting: 492 revisions left to test after this (roughly 9 steps) [ecea3ba2fba2124c8bdc87b27b3829a6015ff854] Merge tag 'platform-drivers-x86-v6.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 testing commit ecea3ba2fba2124c8bdc87b27b3829a6015ff854 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e4c5648ed71555bcd6fafdb06b36b87281a49bb21013b6f522e2e6dcfc0c6f83 all runs: OK false negative chance: 0.000 # git bisect good ecea3ba2fba2124c8bdc87b27b3829a6015ff854 Bisecting: 245 revisions left to test after this (roughly 8 steps) [957f3f8e5343041ddb9a1265ab661db259cc712e] Merge tag 'char-misc-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc testing commit 957f3f8e5343041ddb9a1265ab661db259cc712e gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4a404784fca474c77194a72eeadf254f478185c3fded62abd17cf3d75ee8e104 all runs: OK false negative chance: 0.000 # git bisect good 957f3f8e5343041ddb9a1265ab661db259cc712e Bisecting: 125 revisions left to test after this (roughly 7 steps) [ba059590ec97ddf137ac7f200bfc5c8ce90c0237] Merge tag 'ata-6.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata testing commit ba059590ec97ddf137ac7f200bfc5c8ce90c0237 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 23f2ac46e7fa96a4a69a5cf6cc99e2bc55b3c8ad95618b359e0dfab18987e93d all runs: OK false negative chance: 0.000 # git bisect good ba059590ec97ddf137ac7f200bfc5c8ce90c0237 Bisecting: 62 revisions left to test after this (roughly 6 steps) [fef5b228dd38378148bc850f7e69a7783f3b95a4] rtnetlink: move IFLA_GSO_ tb check to validate_linkmsg testing commit fef5b228dd38378148bc850f7e69a7783f3b95a4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8cd7aefc0d3735285c21b7b2a99145bc3bd5f4399b8f38a71e7affd7eb3100af all runs: OK false negative chance: 0.000 # git bisect good fef5b228dd38378148bc850f7e69a7783f3b95a4 Bisecting: 31 revisions left to test after this (roughly 5 steps) [f93b30e50a81a16cefa262b68bde5c4096ea9235] net: systemport: Replace platform_get_irq with platform_get_irq_optional testing commit f93b30e50a81a16cefa262b68bde5c4096ea9235 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b0945e2354b8620b3c63acded9544cd30697659d83576f78f3d0e38d57ceb095 all runs: crashed: WARNING in signal_wake_up_state representative crash: WARNING in signal_wake_up_state, types: [WARNING] # git bisect bad f93b30e50a81a16cefa262b68bde5c4096ea9235 Bisecting: 15 revisions left to test after this (roughly 4 steps) [a451b8eb96e521ebabc9c53fefa2bcfad6f80f25] Merge tag 'mlx5-fixes-2023-05-31' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux testing commit a451b8eb96e521ebabc9c53fefa2bcfad6f80f25 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 046ab46a673021cbf0ffedc237129d42c3903861d4b5c6bca10682f4cf1b35cd all runs: OK false negative chance: 0.000 # git bisect good a451b8eb96e521ebabc9c53fefa2bcfad6f80f25 Bisecting: 7 revisions left to test after this (roughly 3 steps) [cd69bf361e18091bff20c6f80670911682803650] Merge tag 'mailbox-fixes-6.4-rc5' of git://git.linaro.org/landing-teams/working/fujitsu/integration testing commit cd69bf361e18091bff20c6f80670911682803650 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 728387bf9f1567393bca83b0be92c89979257e582cee5a80e945aa5320d3e0fb all runs: OK false negative chance: 0.000 # git bisect good cd69bf361e18091bff20c6f80670911682803650 Bisecting: 3 revisions left to test after this (roughly 2 steps) [714069daa5d345483578e2ff77fb6f06f4dcba6a] Merge tag 'net-6.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 714069daa5d345483578e2ff77fb6f06f4dcba6a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b1bacdbff8c67c9c4c6de098d222708b4755e34bba4def3fe1693df1d67a5956 all runs: crashed: WARNING in signal_wake_up_state representative crash: WARNING in signal_wake_up_state, types: [WARNING] # git bisect bad 714069daa5d345483578e2ff77fb6f06f4dcba6a Bisecting: 1 revision left to test after this (roughly 1 step) [1874a42a7d74ea85a63673875f4242722a9f624b] Merge tag 'firewire-fixes-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 testing commit 1874a42a7d74ea85a63673875f4242722a9f624b gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4ad4e3f83a2b0d69b0a6728d662a5ebf7c775af1d52f4b57187d717072895bb8 all runs: OK false negative chance: 0.000 # git bisect good 1874a42a7d74ea85a63673875f4242722a9f624b Bisecting: 0 revisions left to test after this (roughly 0 steps) [f9010dbdce911ee1f1af1398a24b1f9f992e0080] fork, vhost: Use CLONE_THREAD to fix freezer/ps regression testing commit f9010dbdce911ee1f1af1398a24b1f9f992e0080 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cefaf8c6184f7578f1bd52becc684c2e4634562bdd953f2c7cd749edffe1db87 all runs: crashed: WARNING in signal_wake_up_state representative crash: WARNING in signal_wake_up_state, types: [WARNING] # git bisect bad f9010dbdce911ee1f1af1398a24b1f9f992e0080 f9010dbdce911ee1f1af1398a24b1f9f992e0080 is the first bad commit commit f9010dbdce911ee1f1af1398a24b1f9f992e0080 Author: Mike Christie Date: Thu Jun 1 13:32:32 2023 -0500 fork, vhost: Use CLONE_THREAD to fix freezer/ps regression When switching from kthreads to vhost_tasks two bugs were added: 1. The vhost worker tasks's now show up as processes so scripts doing ps or ps a would not incorrectly detect the vhost task as another process. 2. kthreads disabled freeze by setting PF_NOFREEZE, but vhost tasks's didn't disable or add support for them. To fix both bugs, this switches the vhost task to be thread in the process that does the VHOST_SET_OWNER ioctl, and has vhost_worker call get_signal to support SIGKILL/SIGSTOP and freeze signals. Note that SIGKILL/STOP support is required because CLONE_THREAD requires CLONE_SIGHAND which requires those 2 signals to be supported. This is a modified version of the patch written by Mike Christie which was a modified version of patch originally written by Linus. Much of what depended upon PF_IO_WORKER now depends on PF_USER_WORKER. Including ignoring signals, setting up the register state, and having get_signal return instead of calling do_group_exit. Tidied up the vhost_task abstraction so that the definition of vhost_task only needs to be visible inside of vhost_task.c. Making it easier to review the code and tell what needs to be done where. As part of this the main loop has been moved from vhost_worker into vhost_task_fn. vhost_worker now returns true if work was done. The main loop has been updated to call get_signal which handles SIGSTOP, freezing, and collects the message that tells the thread to exit as part of process exit. This collection clears __fatal_signal_pending. This collection is not guaranteed to clear signal_pending() so clear that explicitly so the schedule() sleeps. For now the vhost thread continues to exist and run work until the last file descriptor is closed and the release function is called as part of freeing struct file. To avoid hangs in the coredump rendezvous and when killing threads in a multi-threaded exec. The coredump code and de_thread have been modified to ignore vhost threads. Remvoing the special case for exec appears to require teaching vhost_dev_flush how to directly complete transactions in case the vhost thread is no longer running. Removing the special case for coredump rendezvous requires either the above fix needed for exec or moving the coredump rendezvous into get_signal. Fixes: 6e890c5d5021 ("vhost: use vhost_tasks for worker threads") Signed-off-by: Eric W. Biederman Co-developed-by: Mike Christie Signed-off-by: Mike Christie Acked-by: Michael S. Tsirkin Signed-off-by: Linus Torvalds arch/x86/include/asm/fpu/sched.h | 2 +- arch/x86/kernel/fpu/context.h | 2 +- arch/x86/kernel/fpu/core.c | 2 +- drivers/vhost/vhost.c | 22 +++------- fs/coredump.c | 4 +- include/linux/sched/task.h | 1 - include/linux/sched/vhost_task.h | 15 ++----- kernel/exit.c | 5 ++- kernel/fork.c | 13 +++--- kernel/signal.c | 8 ++-- kernel/vhost_task.c | 92 ++++++++++++++++++++++++++-------------- 11 files changed, 89 insertions(+), 77 deletions(-) accumulated error probability: 0.00 culprit signature: cefaf8c6184f7578f1bd52becc684c2e4634562bdd953f2c7cd749edffe1db87 parent signature: 4ad4e3f83a2b0d69b0a6728d662a5ebf7c775af1d52f4b57187d717072895bb8 revisions tested: 26, total time: 5h56m20.29385868s (build: 2h34m25.316678734s, test: 3h5m21.912623287s) first bad commit: f9010dbdce911ee1f1af1398a24b1f9f992e0080 fork, vhost: Use CLONE_THREAD to fix freezer/ps regression recipients (to): ["ebiederm@xmission.com" "michael.christie@oracle.com" "mst@redhat.com" "torvalds@linux-foundation.org"] recipients (cc): [] crash: WARNING in signal_wake_up_state process 'memfd:ndRi5ም[@8 9I=\'LҎ)JtTDqρ1 >\LϑM^T*' started with executable stack ------------[ cut here ]------------ WARNING: CPU: 1 PID: 2560 at kernel/signal.c:765 signal_wake_up_state+0x47/0x60 kernel/signal.c:765 Modules linked in: CPU: 1 PID: 2560 Comm: 4 Not tainted 6.4.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:signal_wake_up_state+0x47/0x60 kernel/signal.c:765 Code: df 83 ce 01 e8 ea 20 03 00 85 c0 74 22 5b 5d c3 48 8b 87 b0 08 00 00 be ff ff ff ff 48 8d 78 18 e8 7e dd 0f 01 85 c0 75 cf 90 <0f> 0b 90 eb c9 48 89 df 5b 5d e9 0a 8e 02 00 66 2e 0f 1f 84 00 00 RSP: 0000:ffffc900013b3dc8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff888105e93700 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff82b0a422 RDI: ffffffff82b2b868 RBP: 0000000000000108 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000080000 R11: 0000000000000000 R12: ffff888105e91b80 R13: 0000000000000000 R14: 000000000000000b R15: ffff88810f72ea40 FS: 0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000b7000000 CR3: 00000001136e1000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: signal_wake_up include/linux/sched/signal.h:457 [inline] zap_other_threads+0xaf/0x110 kernel/signal.c:1379 do_group_exit+0x8f/0xa0 kernel/exit.c:1019 get_signal+0x974/0x980 kernel/signal.c:2876 arch_do_signal_or_restart+0x39/0x290 arch/x86/kernel/signal.c:306 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0xd4/0x1a0 kernel/entry/common.c:204 irqentry_exit_to_user_mode+0xa/0x30 kernel/entry/common.c:310 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0023:0xb7000000 Code: Unable to access opcode bytes at 0xb6ffffd6. RSP: 002b:00000000ffa156d0 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000