ci2 starts bisection 2026-07-13 19:48:12.350151656 +0000 UTC m=+29679.088435623
bisecting fixing commit since 7f4b368e04101e5f8788b55d139505e6cb5e0b67
building syzkaller on fec2a7ee1d4f109a1c346571a9a43b32c568e770
ensuring issue is reproducible on original commit 7f4b368e04101e5f8788b55d139505e6cb5e0b67

testing commit 7f4b368e04101e5f8788b55d139505e6cb5e0b67 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 397c538e8cc8f3b38b144ce638cb4d8581df8c108b38d64d849e94102e699346
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
check whether we can drop unnecessary instrumentation
disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed
testing commit 7f4b368e04101e5f8788b55d139505e6cb5e0b67 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 01f1305cb7830f924b4a9426349ec2fd430c8a0412675200256770684b651536
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the bug reproduces without the instrumentation
disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan locking], they are not needed
kconfig minimization: base=4921 full=6218 leaves diff=256
split chunks (needed=false): <256>
split chunk #0 of len 256 into 5 parts
testing without sub-chunk 1/5
disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit 7f4b368e04101e5f8788b55d139505e6cb5e0b67 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: a9505bf58ad4d31966c7b4a68c6c936be1cf24415d7df9270ba52e726e6fc531
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit 7f4b368e04101e5f8788b55d139505e6cb5e0b67 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 2a35cd2778e082956aa994ace532b694514a4b8af12716d8877bf9f54bab7771
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed
testing commit 7f4b368e04101e5f8788b55d139505e6cb5e0b67 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 5eb5201b1cc91390d97c57d52ac32ddc7032a3a59c065e8d8d00893a660a3f06
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed
testing commit 7f4b368e04101e5f8788b55d139505e6cb5e0b67 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 7c3e06d2f1413d1ff3fe6ef870c19ac54cc34978d25afee3d052694258505c4b
run #0: crashed: lost connection to test machine
run #1: crashed: lost connection to test machine
run #2: crashed: lost connection to test machine
run #3: crashed: lost connection to test machine
run #4: crashed: lost connection to test machine
run #5: crashed: lost connection to test machine
run #6: crashed: lost connection to test machine
run #7: crashed: lost connection to test machine
run #8: crashed: lost connection to test machine
run #9: boot failed: can't ssh into the instance
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit 7f4b368e04101e5f8788b55d139505e6cb5e0b67 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
failed building 7f4b368e04101e5f8788b55d139505e6cb5e0b67: net/socket.c:1188:(.text+0x210b): undefined reference to `wext_handle_ioctl'
net/socket.c:3389:(.text+0x235f): undefined reference to `compat_wext_handle_ioctl'
net/core/net-procfs.c:343:(.text+0x109): undefined reference to `wext_proc_exit'
net/core/net-procfs.c:327:(.text+0x1e4): undefined reference to `wext_proc_init'
minimized to 48 configs; suspects: [HID_ZEROPLUS USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_DM9601 USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL USB_SERIAL_FTDI_SIO USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB 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_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM USB_XHCI_PCI_RENESAS WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_ZYDAS ZEROPLUS_FF]
disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing current HEAD bf3c87ba3144ea27305ceb6e9ef17fc63e5e572e
testing commit bf3c87ba3144ea27305ceb6e9ef17fc63e5e572e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 3a5e2cc7bf595b77224b59fd85d5ecd1d938c88bcfe2d89584025476e3b7a04d
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 1h20m47.994697132s (build: 14m21.747743893s, test: 49m39.737953088s)
crash still not fixed or there were kernel test errors
commit msg: Merge 3fec4b1f36ac ("f2fs: fix to do sanity check on dcc->discard_cmd_cnt conditionally") into android13-5.15-lts
crash: lost connection to test machine