ci2 starts bisection 2026-06-22 16:52:21.917554261 +0000 UTC m=+640.538409706
bisecting fixing commit since b07bd8273426d5d3b9dc3cf6eea8afa2221ad8d5
building syzkaller on c69befb30ac10e158cc9d1557b508ee3f0eca1de
ensuring issue is reproducible on original commit b07bd8273426d5d3b9dc3cf6eea8afa2221ad8d5

testing commit b07bd8273426d5d3b9dc3cf6eea8afa2221ad8d5 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: 9924529a1e81da150a5067f43583af78a6576c61e5de4fbf8f713a74e6ae5acd
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 [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit b07bd8273426d5d3b9dc3cf6eea8afa2221ad8d5 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: 9d3385e2f0f6d8cc03c93db43aff8917886db0bda950e91797883fe8a0e38fc3
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 [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
kconfig minimization: base=5186 full=6558 leaves diff=267
split chunks (needed=false): <267>
split chunk #0 of len 267 into 5 parts
testing without sub-chunk 1/5
disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed
testing commit b07bd8273426d5d3b9dc3cf6eea8afa2221ad8d5 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: d997a2f29135f7632ace02681aee790a123e9095a308ccd34632be8f00e99f51
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 [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed
testing commit b07bd8273426d5d3b9dc3cf6eea8afa2221ad8d5 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: c10f408159ffaebcfddfc445558a9b5b8b6b25fdd1e24d06afe52cb8af7c0c6a
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 b07bd8273426d5d3b9dc3cf6eea8afa2221ad8d5 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: 71fe5150f41f361206c3481ed2c51f0f2bac0c2063d803684c7bace66fb367db
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 [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit b07bd8273426d5d3b9dc3cf6eea8afa2221ad8d5 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: 791e1b46e9bbd1f96bae2320e96c8486a1df67adebaf9d36c7dbb30985b7d284
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 5/5
disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit b07bd8273426d5d3b9dc3cf6eea8afa2221ad8d5 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
failed building b07bd8273426d5d3b9dc3cf6eea8afa2221ad8d5: ld.lld: error: undefined symbol: wext_proc_init
ld.lld: error: undefined symbol: wext_proc_exit
ld.lld: error: undefined symbol: wext_handle_ioctl
ld.lld: error: undefined symbol: compat_wext_handle_ioctl
minimized to 51 configs; suspects: [HAVE_CLK 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_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 V4L2_ASYNC V4L2_FWNODE VIDEO_CAMERA_SENSOR WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_PURELIFI WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_SILABS WLAN_VENDOR_ZYDAS ZEROPLUS_FF]
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed
testing current HEAD 72813af230c70b354ff794deacf334c5d96b0076
testing commit 72813af230c70b354ff794deacf334c5d96b0076 gcc
compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
kernel signature: 00a9b5c728ace9cd0bb913aad448af0945c18980e5138e57b1e1d1703f1328bc
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: 3h23m23.893469623s (build: 56m17.311568382s, test: 23m29.262414789s)
crash still not fixed or there were kernel test errors
commit msg: Merge tag 'android14-6.1.174_r00' into android14-6.1
crash: lost connection to test machine