ci2 starts bisection 2026-07-01 20:19:08.748797183 +0000 UTC m=+12601.074601335
bisecting fixing commit since 8969ee93a483c1b007a1aa69cd1f1cf89cbce72f
building syzkaller on 6b4a844333e83556da95d61d7f207e7ef5cd4bc6
ensuring issue is reproducible on original commit 8969ee93a483c1b007a1aa69cd1f1cf89cbce72f

testing commit 8969ee93a483c1b007a1aa69cd1f1cf89cbce72f gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: fa945602eb05a5ac6f4659684b895357622d4fdccf35f2e4e55481d35d453ac2
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 8969ee93a483c1b007a1aa69cd1f1cf89cbce72f gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 5962279a0d90145d5f8ea328b70d2380f8808045c1d1f2c32c5fc2c48d8d2e93
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 [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], 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 [kasan locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed
testing commit 8969ee93a483c1b007a1aa69cd1f1cf89cbce72f gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 4aaeb230b39b9a24a115ae56c61e5f3468eaf1f59026d73a7db51e5f77d7ee98
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 [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit 8969ee93a483c1b007a1aa69cd1f1cf89cbce72f gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: fcdade82a9e6979bac73f9c882d5b2eca5fee7a5d21f14424ba47dcd8359af5b
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 8969ee93a483c1b007a1aa69cd1f1cf89cbce72f gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 3f2d42c54ca4cbf8fddcc783213d55042ecf440a1142bb9c882c7ea3c9bf864c
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 8969ee93a483c1b007a1aa69cd1f1cf89cbce72f gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: aa49be024156bb7ea632eb7a4f7e4103c41d52ffab648e7b59ac2af3603a54d5
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 8969ee93a483c1b007a1aa69cd1f1cf89cbce72f gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
failed building 8969ee93a483c1b007a1aa69cd1f1cf89cbce72f: 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 [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed
testing current HEAD c85054db46181ee85f10be997f41b347c85bd89b
testing commit c85054db46181ee85f10be997f41b347c85bd89b gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 07af5fc3db7c5430e5c5c563bdd7c07880ead12fb1d18ad6cde8f611c7d6a47a
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: 2h3m35.733531548s (build: 25m36.427379339s, test: 51m43.628838215s)
crash still not fixed or there were kernel test errors
commit msg: Merge 64ee49df839f ("s390/xor: Fix xor_xc_2() inline assembly constraints") into android13-5.15-lts
crash: lost connection to test machine