ci2 starts bisection 2026-07-21 08:35:31.791573902 +0000 UTC m=+79480.114292007
bisecting fixing commit since ab7c0abef9cf6d23f68065b7a20e80a9852bdfad
building syzkaller on 578925bcbcaef470c75aea9e463ca6a44ac10c17
ensuring issue is reproducible on original commit ab7c0abef9cf6d23f68065b7a20e80a9852bdfad

testing commit ab7c0abef9cf6d23f68065b7a20e80a9852bdfad gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 50c965126bc1a905c4c5effbd85320f4daf99006bb6f050a7a43f53cd3d37e4f
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 ab7c0abef9cf6d23f68065b7a20e80a9852bdfad gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 070bdfb2e33738f66bbf55f6b09038ff221cf891838ea3da84888f86ec9242c5
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=4788 full=6020 leaves diff=245
split chunks (needed=false): <245>
split chunk #0 of len 245 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 ab7c0abef9cf6d23f68065b7a20e80a9852bdfad gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 6dd7a00c88c00133c731e3317cd70b9b707ea8638e13b93506bdeda7f5db6662
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 [ubsan bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed
testing commit ab7c0abef9cf6d23f68065b7a20e80a9852bdfad gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 3960b15c8bdad48f9b88e0c563902fcc2108fc21ce6622711e22647ae49d861f
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 ab7c0abef9cf6d23f68065b7a20e80a9852bdfad gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: e00cd2b37168fc6366384d5bafadb92f8fd3f16f79f24b85cbee5bf35e9fe006
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 ab7c0abef9cf6d23f68065b7a20e80a9852bdfad gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: cf84a5b290d330b1c577cad01ed2a8b401602a66ddc6348677ed2b2603a040b8
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 [ubsan bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed
testing commit ab7c0abef9cf6d23f68065b7a20e80a9852bdfad gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
failed building ab7c0abef9cf6d23f68065b7a20e80a9852bdfad: 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 49 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 X86_X32 ZEROPLUS_FF]
disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan locking], they are not needed
testing current HEAD 50b3a256e550e98ff6a49d32e77fb67998707961
testing commit 50b3a256e550e98ff6a49d32e77fb67998707961 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 92b4c76531b92e5d7693eb1c3c2ff4cd891e33fbed4f9e1bdb193ad190c06a33
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: 1h12m9.891739994s (build: 16m39.282292035s, test: 35m10.562035727s)
crash still not fixed or there were kernel test errors
commit msg: Merge 5.10.260 into android13-5.10-lts
crash: lost connection to test machine