ci2 starts bisection 2024-04-24 05:44:03.234503249 +0000 UTC m=+79948.087070593 bisecting fixing commit since 993bed180178156a70afdafe8aaf23a117107352 building syzkaller on 8d446f1521b580230a60c9ae228bf0c26312c80b ensuring issue is reproducible on original commit 993bed180178156a70afdafe8aaf23a117107352 testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: edafe406019a9ce6c967e2ab61f8bbc3cb9839ce3540bbaaacb4752de97d7fc5 run #0: crashed: BUG: scheduling while atomic in do_nanosleep run #1: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #2: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #3: crashed: BUG: scheduling while atomic in do_nanosleep run #4: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #5: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #6: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #7: crashed: BUG: scheduling while atomic in do_nanosleep run #8: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #9: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #10: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #11: crashed: BUG: scheduling while atomic in do_nanosleep run #12: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #13: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #14: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #15: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #16: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #17: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #18: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #19: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare representative crash: BUG: scheduling while atomic in do_nanosleep, types: [ATOMIC_SLEEP] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4b15c7e8b0d388aa0aebc1cfb799d7a6498d84d9d7dac74e54f1c1f0f6bed52f run #0: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #1: crashed: BUG: scheduling while atomic in do_epoll_wait run #2: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #3: crashed: BUG: scheduling while atomic in do_nanosleep run #4: crashed: BUG: scheduling while atomic in do_nanosleep run #5: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #6: crashed: BUG: scheduling while atomic in do_nanosleep run #7: crashed: BUG: scheduling while atomic in do_nanosleep run #8: crashed: BUG: scheduling while atomic in do_nanosleep run #9: crashed: BUG: scheduling while atomic in do_nanosleep representative crash: BUG: scheduling while atomic in exit_to_user_mode_prepare, types: [ATOMIC_SLEEP] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed kconfig minimization: base=4920 full=6159 leaves diff=242 split chunks (needed=false): <242> split chunk #0 of len 242 into 5 parts testing without sub-chunk 1/5 disabling configs for [KASAN LOCKDEP HANG LEAK UBSAN BUG], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 36305924a53a357e36647b9fae63cfa6400b25e041bcb555a1a42f4f886fb3ec run #0: crashed: BUG: scheduling while atomic in do_nanosleep run #1: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #2: crashed: BUG: scheduling while atomic in do_nanosleep run #3: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #4: crashed: BUG: scheduling while atomic in do_nanosleep run #5: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #6: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #7: crashed: BUG: scheduling while atomic in futex_wait_queue_me run #8: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #9: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare representative crash: BUG: scheduling while atomic in do_nanosleep, types: [ATOMIC_SLEEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b95ee1e68bd3ffbd27f1f0db50a70965c66d9911f2af8ff210d33afd4ba8072b run #0: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #1: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #2: crashed: BUG: scheduling while atomic in do_nanosleep run #3: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #4: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #5: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #6: crashed: BUG: scheduling while atomic in do_nanosleep run #7: crashed: BUG: scheduling while atomic in do_epoll_wait run #8: crashed: BUG: scheduling while atomic in do_nanosleep run #9: crashed: BUG: scheduling while atomic in do_nanosleep representative crash: BUG: scheduling while atomic in exit_to_user_mode_prepare, types: [ATOMIC_SLEEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0ff459b1069b2f6acd45e6a79130891b6a0463ad0325f8253d8d795091a6cb9f run #0: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #1: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #2: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #3: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #4: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #5: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #6: crashed: BUG: scheduling while atomic in do_nanosleep run #7: crashed: BUG: scheduling while atomic in do_nanosleep run #8: crashed: BUG: scheduling while atomic in do_nanosleep run #9: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare representative crash: BUG: scheduling while atomic in exit_to_user_mode_prepare, types: [ATOMIC_SLEEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [UBSAN BUG KASAN LOCKDEP HANG LEAK], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3ea71843158e4a09e9446a0c449f376d5154d574b94b67f06c183aa1445c6363 run #0: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #1: crashed: BUG: scheduling while atomic in do_nanosleep run #2: crashed: BUG: scheduling while atomic in do_nanosleep run #3: crashed: BUG: scheduling while atomic in do_nanosleep run #4: crashed: BUG: scheduling while atomic in do_nanosleep run #5: crashed: BUG: scheduling while atomic in do_nanosleep run #6: crashed: BUG: scheduling while atomic in do_nanosleep run #7: crashed: BUG: scheduling while atomic in do_nanosleep run #8: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #9: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare representative crash: BUG: scheduling while atomic in exit_to_user_mode_prepare, types: [ATOMIC_SLEEP] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [KASAN LOCKDEP HANG LEAK UBSAN BUG], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building 993bed180178156a70afdafe8aaf23a117107352: net/socket.c:1191: undefined reference to `wext_handle_ioctl' net/socket.c:3385: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:343: undefined reference to `wext_proc_exit' net/core/net-procfs.c:327: undefined reference to `wext_proc_init' minimized to 46 configs; suspects: [HID_ZEROPLUS 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 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 [LOCKDEP HANG LEAK UBSAN BUG KASAN], they are not needed testing current HEAD ad06eaf051cd0bdfd330f378c91f537107ce938e testing commit ad06eaf051cd0bdfd330f378c91f537107ce938e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4ff7fa53e3600dfeaff14d7f6bdd03052644472ac1b39cd474ae1611183ea1bd run #0: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #1: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #2: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #3: crashed: BUG: scheduling while atomic in do_nanosleep run #4: crashed: BUG: scheduling while atomic in do_nanosleep run #5: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #6: crashed: BUG: scheduling while atomic in do_nanosleep run #7: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare run #8: crashed: BUG: scheduling while atomic in do_nanosleep run #9: crashed: BUG: scheduling while atomic in exit_to_user_mode_prepare representative crash: BUG: scheduling while atomic in exit_to_user_mode_prepare, types: [ATOMIC_SLEEP] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h45m6.88488634s (build: 34m44.307885568s, test: 1h8m9.252695305s) crash still not fixed or there were kernel test errors commit msg: Merge branch 'android13-5.15' into branch 'android13-5.15-lts' crash: BUG: scheduling while atomic in exit_to_user_mode_prepare BUG: scheduling while atomic: udevd/95/0x00000002 Modules linked in: Preemption disabled at: [] percpu_counter_add_batch+0x20/0xc0 lib/percpu_counter.c:86 CPU: 1 PID: 95 Comm: udevd Not tainted 5.15.148-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x38/0x49 lib/dump_stack.c:106 dump_stack+0x10/0x12 lib/dump_stack.c:113 __schedule_bug.cold+0x80/0xab kernel/sched/core.c:5707 schedule_debug kernel/sched/core.c:5734 [inline] __schedule+0x65d/0x730 kernel/sched/core.c:6402 schedule+0x60/0xf0 kernel/sched/core.c:6595 exit_to_user_mode_loop kernel/entry/common.c:163 [inline] exit_to_user_mode_prepare+0xd0/0x150 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x21/0x40 kernel/entry/common.c:301 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7efd9e81b457 Code: 73 01 c3 48 8b 0d d1 d9 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 e8 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 76 48 8b 15 a2 d9 0c 00 f7 d8 64 89 02 48 83 RSP: 002b:00007fff278bcb88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 RAX: 0000000000000001 RBX: 00007fff278bcc88 RCX: 00007efd9e81b457 RDX: 0000000000000008 RSI: 00007fff278bcc88 RDI: 000000000000000b RBP: 00000000000000d9 R08: 00000000ffffffff R09: 0000000000000000 R10: 0000000000000bb8 R11: 0000000000000246 R12: 0000000000000bb8 R13: 000055c3614424a0 R14: 0000000000000000 R15: 0000000000000000