ci2 starts bisection 2025-02-17 21:01:43.36407392 +0000 UTC m=+102.834745063 bisecting fixing commit since e5e5644ea27f86a29c84df744a01ea7de65ef800 building syzkaller on 045e728ddf201a25525e5e2ae73297b1ddb9aeec ensuring issue is reproducible on original commit e5e5644ea27f86a29c84df744a01ea7de65ef800 testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 736631953ad710c76cad785c4ec1260dabadac197a7bf0f2716b17356b202268 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: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #10: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #11: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #12: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #13: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #14: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #15: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #16: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #17: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return run #18: OK run #19: 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 [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4959445b66c5ad739459d3e729367129d667ed3c4290f13a4b55ba9a6345b6e8 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed kconfig minimization: base=4789 full=6020 leaves diff=243 split chunks (needed=false): <243> split chunk #0 of len 243 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1ea6e2b70b8123f119d809700e774affc0a21f4eeec1411c2f03739cbd000c9b 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 2/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6cff95c8b8694a9a552cf4721b3fbc7033b1e9086a16e758aa0a71000783cb3f 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 3/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2ca1fafa812863ff46e6e6581e2b5d23f8a190598c800f8d94f72bdf47f496a4 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: OK 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 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d68a7b0629d5f6e23fac820bbaec360cbe513bdccef0b7a347568c9579de712c 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: OK 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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building e5e5644ea27f86a29c84df744a01ea7de65ef800: net/socket.c:1128: undefined reference to `wext_handle_ioctl' net/socket.c:3397: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:346: undefined reference to `wext_proc_exit' net/core/net-procfs.c:330: undefined reference to `wext_proc_init' minimized to 47 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 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing current HEAD 6686f2996d23ab0b94151843024f466a3a264f34 testing commit 6686f2996d23ab0b94151843024f466a3a264f34 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 72d27ba2c7b0370b1ccc5baef17869f953f60ff34e3fcc76d498412a0bc72142 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: 2h45m52.972617932s (build: 17m37.649502359s, test: 1h23m23.519464991s) crash still not fixed or there were kernel test errors commit msg: Revert "net: net_namespace: Optimize the code" crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return BUG: using smp_processor_id() in preemptible [00000000] code: dhcpcd/129 caller is debug_smp_processor_id+0x17/0x20 lib/smp_processor_id.c:59 CPU: 0 PID: 129 Comm: dhcpcd Not tainted 5.10.234-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack_lvl+0x5d/0x75 lib/dump_stack.c:118 dump_stack+0x10/0x12 lib/dump_stack.c:135 check_preemption_disabled+0xc4/0xd0 lib/smp_processor_id.c:48 debug_smp_processor_id+0x17/0x20 lib/smp_processor_id.c:59 usbnet_skb_return+0x1b/0xc0 drivers/net/usb/usbnet.c:306 usbnet_resume_rx+0x23/0x60 drivers/net/usb/usbnet.c:679 usbnet_change_mtu+0x84/0xc0 drivers/net/usb/usbnet.c:392 __dev_set_mtu net/core/dev.c:8619 [inline] dev_set_mtu_ext+0x105/0x250 net/core/dev.c:8672 dev_set_mtu+0x35/0x80 net/core/dev.c:8696 dev_ifsioc+0x1e1/0x360 net/core/dev_ioctl.c:237 dev_ioctl+0xa7/0x320 net/core/dev_ioctl.c:481 sock_do_ioctl+0x94/0x130 net/socket.c:1090 sock_ioctl+0x23c/0x3a0 net/socket.c:1207 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x89/0xc0 fs/ioctl.c:739 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fd2b1ff0d49 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:00007ffcb9a5b438 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fd2b1f226c0 RCX: 00007fd2b1ff0d49 RDX: 00007ffcb9a6b628 RSI: 0000000000008922 RDI: 000000000000000e RBP: 00007ffcb9a7b7e8 R08: 00007ffcb9a6b5e8 R09: 00007ffcb9a6b598 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcb9a6b628 R14: 0000000000000028 R15: 0000000000008922