ci2 starts bisection 2024-12-21 01:06:32.261324546 +0000 UTC m=+9454.403275291 bisecting fixing commit since 70e1a731d98699d85ada2cbdd4d487e51b2f7441 building syzkaller on 1e9c4cf3ae82ef82220af312606fffe65e124563 ensuring issue is reproducible on original commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8572c25ebee2be67aee5f213a1c3f0fd7cb3c66d969ad9a06d311e8cda042d51 all runs: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return representative crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f4dae2d48add550772e48706b80d906f3c5b5a0be00baa27bf19e4671050cd53 all runs: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return representative crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed kconfig minimization: base=4920 full=6203 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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 45be086df9509ea082a4f9af265ca624f994507fa4f39c8eaac2c14d0c98341d run #0: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #1: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #2: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #3: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #4: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #5: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #6: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #7: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #8: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #9: OK representative crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 45e8d36868f327ac86659c2900f1ca35f0c78fdf9aad695f23a53a07173831e2 run #0: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #1: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #2: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #3: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #4: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #5: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #6: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #7: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #8: OK run #9: OK representative crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: df6459f149fd6daba9b72659dcdc4e17a39026effe0a0cd32b2d56ff4bf0d260 run #0: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #1: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #2: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #3: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #4: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #5: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #6: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #7: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #8: OK run #9: OK representative crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bfbb89f02bae6d0489abd57ba69037e9beceec272128872ac5057b6a6c10346b run #0: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #1: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #2: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #3: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #4: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #5: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #6: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #7: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #8: OK run #9: OK representative crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building 70e1a731d98699d85ada2cbdd4d487e51b2f7441: 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 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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing current HEAD b4bd207b0380c89a7134705d0cddb3541912562b testing commit b4bd207b0380c89a7134705d0cddb3541912562b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a88414cf0a37940e77015d821e77c05e05a06855a79ed860d6f4621fda61339f run #0: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #1: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #2: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #3: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #4: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #5: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #6: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #7: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #8: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #9: OK representative crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 2h29m37.841983605s (build: 51m43.490051889s, test: 1h35m36.973845568s) crash still not fixed or there were kernel test errors commit msg: Merge branch 'android13-5.15' into android13-5.15-lts crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return BUG: using smp_processor_id() in preemptible [00000000] code: dhcpcd/134 caller is debug_smp_processor_id+0x17/0x20 lib/smp_processor_id.c:60 CPU: 0 PID: 134 Comm: dhcpcd Not tainted 5.15.173-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 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 check_preemption_disabled+0xdf/0xf0 lib/smp_processor_id.c:49 debug_smp_processor_id+0x17/0x20 lib/smp_processor_id.c:60 usbnet_skb_return+0x22/0xc0 drivers/net/usb/usbnet.c:323 usbnet_resume_rx+0x23/0x60 drivers/net/usb/usbnet.c:702 usbnet_change_mtu+0x84/0xc0 drivers/net/usb/usbnet.c:409 __dev_set_mtu net/core/dev.c:8915 [inline] dev_set_mtu_ext+0x108/0x270 net/core/dev.c:8968 dev_set_mtu+0x35/0x80 net/core/dev.c:8992 dev_ifsioc+0x2de/0x4d0 net/core/dev_ioctl.c:331 dev_ioctl+0xb2/0x3b0 net/core/dev_ioctl.c:587 sock_do_ioctl+0x8d/0xd0 net/socket.c:1154 sock_ioctl+0x152/0x2a0 net/socket.c:1257 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x89/0xc0 fs/ioctl.c:860 x64_sys_call+0x912/0x990 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f04fe4e9d49 Code: 5c c3 48 8d 44 24 08 48 89 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 b8 10 00 00 00 c7 44 24 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 76 10 48 8b 15 ae 60 0d 00 f7 d8 41 83 c8 RSP: 002b:00007fff0b615a98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f04fe41b6c0 RCX: 00007f04fe4e9d49 RDX: 00007fff0b625c88 RSI: 0000000000008922 RDI: 0000000000000012 RBP: 00007fff0b635e48 R08: 00007fff0b625c48 R09: 00007fff0b625bf8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff0b625c88 R14: 0000000000000028 R15: 0000000000008922