ci2 starts bisection 2026-07-05 18:26:15.414717831 +0000 UTC m=+164169.240621417
bisecting fixing commit since 186f761c519d0518baa78bf57788195e11c7e34c
building syzkaller on ea10c935856cded6cc90ae664ab99f4960e3b9f5
ensuring issue is reproducible on original commit 186f761c519d0518baa78bf57788195e11c7e34c

testing commit 186f761c519d0518baa78bf57788195e11c7e34c gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: bbdd1ddfff28c9dfbb4aa983ee32d34b02cd857ebc653c61664681e0abb594d0
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 [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed
testing commit 186f761c519d0518baa78bf57788195e11c7e34c gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: f71f142daaa1ba31bb57adee421503a7c2329d9d2f8535e42740672c70286dc2
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 [ubsan bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed
kconfig minimization: base=4788 full=6025 leaves diff=248
split chunks (needed=false): <248>
split chunk #0 of len 248 into 5 parts
testing without sub-chunk 1/5
disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit 186f761c519d0518baa78bf57788195e11c7e34c gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 91f3829a973a58f17946891b0ca9edeb3f7d5b0bd2748283ed58586462f40357
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 186f761c519d0518baa78bf57788195e11c7e34c gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 355adde18a79c4ef20389c82af27b459794a585fbf17af62e8ded012d7d4f28b
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 [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit 186f761c519d0518baa78bf57788195e11c7e34c gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: e693395fc5e043d0d35d417a877f354b338584c69ec6a6a9c6d77c5af7b572d5
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 [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed
testing commit 186f761c519d0518baa78bf57788195e11c7e34c gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: a4ab477444a71d5d9ce208390f3448c9a8d089ca58c845cc9c0f4aa3a37cb52a
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 [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit 186f761c519d0518baa78bf57788195e11c7e34c gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
failed building 186f761c519d0518baa78bf57788195e11c7e34c: net/socket.c:1128:(.text+0x817): undefined reference to `wext_handle_ioctl'
net/socket.c:3397:(.text+0xa08): undefined reference to `compat_wext_handle_ioctl'
net/core/net-procfs.c:346:(.text+0x109): undefined reference to `wext_proc_exit'
net/core/net-procfs.c:330:(.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 [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed
testing current HEAD 1bb06dbd8c786cf382d0fde8ff7d5a1fdfc67111
testing commit 1bb06dbd8c786cf382d0fde8ff7d5a1fdfc67111 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: ab7fb063f39d1c32922704a519e4e2bc7fee974e627f22ecab9115065083b1db
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: 1h5m37.54399287s (build: 18m11.511882067s, test: 30m59.430789484s)
crash still not fixed or there were kernel test errors
commit msg: Revert "alarmtimer: Check RTC features instead of ops"
crash: lost connection to test machine