ci2 starts bisection 2025-05-28 13:53:28.833790906 +0000 UTC m=+169094.023252183
bisecting fixing commit since 83655231580bc07485a4ac2a6c971c3a175dd27d
building syzkaller on 4d098039e09f95a4767fe001c5fd244e6eaeef28
ensuring issue is reproducible on original commit 83655231580bc07485a4ac2a6c971c3a175dd27d

testing commit 83655231580bc07485a4ac2a6c971c3a175dd27d gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5d0b7f2b9d2cc0eb2a875237aedd0bc7a049d1a1cedb32d4f41662012ae59f59
run #0: crashed: INFO: rcu detected stall in corrupted
run #1: crashed: INFO: rcu detected stall in futex
run #2: crashed: INFO: rcu detected stall in getpid
run #3: crashed: INFO: rcu detected stall in waitid
run #4: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
run #5: crashed: INFO: rcu detected stall in addrconf_dad_work
run #6: crashed: INFO: rcu detected stall in wb_workfn
run #7: crashed: INFO: rcu detected stall in schedule_timeout
run #8: crashed: INFO: rcu detected stall in waitid
run #9: crashed: INFO: rcu detected stall in corrupted
run #10: crashed: INFO: rcu detected stall in __do_munmap
run #11: crashed: INFO: rcu detected stall in worker_thread
run #12: crashed: INFO: rcu detected stall in schedule_timeout
run #13: crashed: INFO: rcu detected stall in schedule_timeout
run #14: crashed: INFO: rcu detected stall in corrupted
run #15: crashed: INFO: rcu detected stall in corrupted
run #16: crashed: INFO: rcu detected stall in rtnl_newlink
run #17: crashed: INFO: rcu detected stall in corrupted
run #18: crashed: INFO: rcu detected stall in futex
run #19: crashed: INFO: rcu detected stall in corrupted
representative crash: INFO: rcu detected stall in corrupted, types: [HANG]
check whether we can drop unnecessary instrumentation
disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed
testing commit 83655231580bc07485a4ac2a6c971c3a175dd27d gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 1d6a174d709e4f8024bb474690c16a75b55407540e9660879015a87f7a31ffc2
run #0: crashed: INFO: rcu detected stall in futex
run #1: crashed: INFO: rcu detected stall in corrupted
run #2: crashed: INFO: rcu detected stall in futex
run #3: crashed: INFO: rcu detected stall in futex
run #4: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
run #5: crashed: INFO: rcu detected stall in futex
run #6: crashed: INFO: rcu detected stall in corrupted
run #7: crashed: INFO: rcu detected stall in futex
run #8: crashed: INFO: rcu detected stall in corrupted
run #9: crashed: INFO: rcu detected stall in corrupted
representative crash: INFO: rcu detected stall in futex, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed
kconfig minimization: base=3707 full=7269 leaves diff=1978
split chunks (needed=false): <1978>
split chunk #0 of len 1978 into 5 parts
testing without sub-chunk 1/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed
testing commit 83655231580bc07485a4ac2a6c971c3a175dd27d gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: f967a4cb225827fc8f8ef53b043e42274b4ba2954fb8ea5e7cb2c323cce3fee4
run #0: crashed: INFO: rcu detected stall in corrupted
run #1: crashed: INFO: rcu detected stall in schedule_timeout
run #2: crashed: INFO: rcu detected stall in schedule_timeout
run #3: crashed: INFO: rcu detected stall in schedule_timeout
run #4: crashed: INFO: rcu detected stall in rtnl_newlink
run #5: crashed: INFO: rcu detected stall in futex
run #6: crashed: INFO: rcu detected stall in corrupted
run #7: crashed: INFO: rcu detected stall in syscall_enter_from_user_mode
run #8: crashed: INFO: rcu detected stall in schedule_timeout
run #9: crashed: INFO: rcu detected stall in waitid
representative crash: INFO: rcu detected stall in corrupted, types: [HANG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed
testing commit 83655231580bc07485a4ac2a6c971c3a175dd27d gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: fd7b8facb3d4726bb55c82a42c4ca7cccdb4c770ca4354e27b1bf3460a46f9f2
run #0: crashed: INFO: rcu detected stall in sys_exit_group
run #1: crashed: INFO: rcu detected stall in sendmsg
run #2: crashed: INFO: rcu detected stall in corrupted
run #3: crashed: INFO: rcu detected stall in futex
run #4: crashed: INFO: rcu detected stall in futex
run #5: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
run #6: crashed: INFO: rcu detected stall in schedule_timeout
run #7: crashed: INFO: rcu detected stall in corrupted
run #8: crashed: INFO: rcu detected stall in corrupted
run #9: crashed: INFO: rcu detected stall in schedule_timeout
representative crash: INFO: rcu detected stall in sys_exit_group, types: [HANG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 83655231580bc07485a4ac2a6c971c3a175dd27d gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ecbb623a1ad67fc955f4396adcf5364a68c53020d483652328f6c0b4071891b9
run #0: crashed: INFO: rcu detected stall in futex
run #1: crashed: INFO: rcu detected stall in schedule_timeout
run #2: crashed: INFO: rcu detected stall in futex
run #3: crashed: INFO: rcu detected stall in worker_thread
run #4: crashed: INFO: rcu detected stall in worker_thread
run #5: crashed: INFO: rcu detected stall in schedule_timeout
run #6: crashed: INFO: rcu detected stall in schedule_timeout
run #7: crashed: INFO: rcu detected stall in schedule_timeout
run #8: crashed: INFO: rcu detected stall in corrupted
run #9: crashed: INFO: rcu detected stall in schedule_timeout
representative crash: INFO: rcu detected stall in futex, types: [HANG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed
testing commit 83655231580bc07485a4ac2a6c971c3a175dd27d gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 4fb62a8afd73e5677cabdd180e458cf5b242758ed29f5a1f82c8886084929b93
run #0: crashed: INFO: rcu detected stall in futex
run #1: crashed: INFO: rcu detected stall in futex
run #2: crashed: INFO: rcu detected stall in corrupted
run #3: crashed: INFO: rcu detected stall in sys_epoll_wait
run #4: crashed: INFO: rcu detected stall in syscall_enter_from_user_mode
run #5: crashed: INFO: rcu detected stall in corrupted
run #6: crashed: INFO: rcu detected stall in corrupted
run #7: crashed: INFO: rcu detected stall in syscall_enter_from_user_mode
run #8: crashed: INFO: rcu detected stall in waitid
run #9: crashed: INFO: rcu detected stall in corrupted
representative crash: INFO: rcu detected stall in futex, types: [HANG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 83655231580bc07485a4ac2a6c971c3a175dd27d gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e8cfcf8cf980dc2422050e9972c070abf998c149e43f0f8a6e26b81cde546eb9
all runs: OK
false negative chance: 0.000
minimized to 394 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_LZO CRYPTO_ZSTD DVB_CORE EXTCON FB FRONTSWAP GPIOLIB HID_ZEROPLUS I2C_MUX IIO IRQ_REMAP 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_HOTPLUG_SPARSE MEMORY_HOTREMOVE MFD_VIPERBOARD PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SND SOUND SPI SSB TAP TUN USB_AMD5536UDC USB_ATM USB_CONFIGFS 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_FOTG210_HCD USB_FOTG210_UDC USB_FTDI_ELAN 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_STKWEBCAM 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_U132_HCD 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 USB_ZR364XX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VETH VFIO VFIO_IOMMU_TYPE1 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_VDPA VHOST_VSOCK VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOBUF_GEN VIDEOBUF_VMALLOC VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CPIA2 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_STK1160_COMMON VIDEO_TM6000 VIDEO_TM6000_ALSA VIDEO_TM6000_DVB VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2 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 X86_SGX X86_X2APIC X86_X32 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 ZBUD ZEROPLUS_FF ZONEFS_FS ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZBUD]
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing current HEAD 98f47d0e9b8c557d3063d3ea661cbea1489af330
testing commit 98f47d0e9b8c557d3063d3ea661cbea1489af330 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5c2b77dc854ff2fdf6a033ab8dd39a35bb2c1e2dc9894599c9091efc2af9a725
run #0: crashed: INFO: rcu detected stall in corrupted
run #1: crashed: INFO: rcu detected stall in syscall_enter_from_user_mode
run #2: crashed: INFO: rcu detected stall in worker_thread
run #3: crashed: INFO: rcu detected stall in waitid
run #4: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
run #5: crashed: INFO: rcu detected stall in worker_thread
run #6: crashed: INFO: rcu detected stall in corrupted
run #7: crashed: INFO: rcu detected stall in call_usermodehelper_exec_async
run #8: crashed: INFO: rcu detected stall in corrupted
run #9: crashed: INFO: rcu detected stall in corrupted
representative crash: INFO: rcu detected stall in corrupted, types: [HANG]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 1h57m45.435389209s (build: 33m42.942420623s, test: 1h21m10.637141045s)
crash still not fixed or there were kernel test errors
commit msg: Linux 5.15.184
crash: INFO: rcu detected stall in corrupted
rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
	(detected by 0, t=10002 jiffies, g=1897, q=378)
rcu: All QSes seen, last rcu_sched kthread activity 10003 (4294952772-4294942769), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_sched kthread starved for 10004 jiffies! g1897 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_sched       state:R  running task     stack:14336 pid:   13 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x2b8/0x790 kernel/sched/core.c:6376
 schedule+0x53/0x90 kernel/sched/core.c:6459
 schedule_timeout+0xaf/0x140 kernel/time/timer.c:1914
 rcu_gp_fqs_loop+0xe1/0x380 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0x86/0x110 kernel/rcu/tree.c:2145
 kthread+0x10b/0x130 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3421 Comm: syz-executor.1 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:lockdep_recursion_inc kernel/locking/lockdep.c:431 [inline]
RIP: 0010:lock_acquire kernel/locking/lockdep.c:5622 [inline]
RIP: 0010:lock_acquire+0x61/0x130 kernel/locking/lockdep.c:5588
Code: 91 0d f0 01 85 d2 74 77 65 8b 05 a2 03 f5 7e 85 c0 75 6c 65 48 8b 04 25 00 af 01 00 8b 80 44 0a 00 00 85 c0 75 59 9c 41 5f fa <65> ff 05 80 03 f5 7e 41 81 e7 00 02 00 00 6a 00 49 89 d9 44 89 f1
RSP: 0018:ffffc900000c0ea8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000002
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffffff82d76000
RBP: ffffffff82d76000 R08: 0000000000000000 R09: 0000000000000000
R10: ffff888100f80078 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000002 R15: 0000000000000046
FS:  00007f025ee1a6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f025ee19d80 CR3: 0000000118bd9000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 rcu_read_lock include/linux/rcupdate.h:739 [inline]
 __sigqueue_alloc+0x3d/0x150 kernel/signal.c:427
 __send_signal+0xd8/0x440 kernel/signal.c:1116
 do_send_sig_info kernel/signal.c:1294 [inline]
 group_send_sig_info+0xb9/0xe0 kernel/signal.c:1442
 do_bpf_send_signal+0x18/0x50 kernel/trace/bpf_trace.c:779
 irq_work_single kernel/irq_work.c:155 [inline]
 irq_work_run_list+0x42/0x60 kernel/irq_work.c:177
 irq_work_run+0x14/0x40 kernel/irq_work.c:186
 __sysvec_irq_work+0x35/0xc0 arch/x86/kernel/irq_work.c:22
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x65/0x90 arch/x86/kernel/irq_work.c:17
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:kmap_local_sched_in kernel/sched/core.c:4810 [inline]
RIP: 0010:finish_task_switch.isra.0+0xa1/0x220 kernel/sched/core.c:4912
Code: f6 68 d1 48 0a 81 49 8d 7c 24 18 e8 09 6b 02 00 4c 89 e7 e8 d1 fe ff ff 4c 89 e7 e8 69 ca f1 00 fb 65 48 8b 04 25 00 af 01 00 <8b> 88 f8 14 00 00 5a 85 c9 0f 85 09 01 00 00 4d 85 f6 74 1d 65 48
RSP: 0018:ffffc90005587bd8 EFLAGS: 00000246
RAX: ffff888117e29b40 RBX: ffff888117e29b40 RCX: ffffc90005587b8c
RDX: 0000000000000000 RSI: ffff888237d2cf18 RDI: ffff888237d2cf00
RBP: ffffc90005587c08 R08: 0000000000080030 R09: 0000000000000000
R10: 0000000000080000 R11: 0000000000000000 R12: ffff888237d2cf00
R13: ffff8881009f0000 R14: 0000000000000000 R15: 0000000000000000
 context_switch kernel/sched/core.c:5033 [inline]
 __schedule+0x2c0/0x790 kernel/sched/core.c:6376
 schedule+0x53/0x90 kernel/sched/core.c:6459
 freezable_schedule include/linux/freezer.h:172 [inline]
 futex_wait_queue_me+0x9c/0x100 kernel/futex/core.c:2863
 futex_wait+0xe2/0x240 kernel/futex/core.c:2964
 do_futex+0xf1/0xa90 kernel/futex/core.c:3982
 __do_sys_futex+0x5f/0x1d0 kernel/futex/core.c:4059
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x33/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f025f297ee9
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:00007f025ee1a178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f025f3c6f88 RCX: 00007f025f297ee9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f025f3c6f88
RBP: 00007f025f3c6f80 R08: 00007f025ee1a6c0 R09: 00007f025ee1a6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f025f3c6f8c
R13: 000000000000000b R14: 00007ffeb12b5380 R15: 00007ffeb12b5468
 </TASK>