ci2 starts bisection 2026-07-06 05:25:30.296339875 +0000 UTC m=+203724.122243391
bisecting fixing commit since dad37bbb13a8cb34a50620b396e22db5eff2dfdd
building syzkaller on 4180d91913899c7394d15307c52f8ec0b228f6cc
ensuring issue is reproducible on original commit dad37bbb13a8cb34a50620b396e22db5eff2dfdd

testing commit dad37bbb13a8cb34a50620b396e22db5eff2dfdd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 59cca83d569510e5c6d8c03339203075660a8fd304ed629fa71feca651e0d714
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 dad37bbb13a8cb34a50620b396e22db5eff2dfdd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: b669fc81e16c8071d7f4ee76d8138ff6190a9d296e900dabcd5a7f14cc133caf
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 [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit dad37bbb13a8cb34a50620b396e22db5eff2dfdd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 10df56efa026e68773c811418274b5447494c56c1c64a860fc5f75a6dfab9a40
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 [atomic_sleep hang memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit dad37bbb13a8cb34a50620b396e22db5eff2dfdd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 2b18db56543382d0da339054664d4e3556dc96f6ce04d274a57c11ff5ef4f67d
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 [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit dad37bbb13a8cb34a50620b396e22db5eff2dfdd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: da2a30c504c2218f08e6842c7bdcc5687d9d4e950151d252c74ab94d17325ed3
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 [atomic_sleep hang memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit dad37bbb13a8cb34a50620b396e22db5eff2dfdd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 9e4cd40658e514d226858cd60e8e6a68f63878293fcd429f4c051ecabd0248c5
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 [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed
testing commit dad37bbb13a8cb34a50620b396e22db5eff2dfdd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
failed building dad37bbb13a8cb34a50620b396e22db5eff2dfdd: 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 [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], 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: a1a66c409e6c2a1726707108885c1037ce9d77f1c6c68003846fdadc049b1d14
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: 1h8m44.044990186s (build: 17m1.107755984s, test: 30m40.478504206s)
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