====================================== | xx__-> [ 16.262789][ T278] netdevsim netdevsim2025 nsim2025: renamed from eth0 | [ 16.546192][ T281] ip (281) used greatest stack depth: 23904 bytes left | [ 16.680027][ T253] BUG: using smp_processor_id() in preemptible [00000000] code: netns-name.sh/253 | [ 16.681650][ T253] caller is nsim_queue_uninit (./include/linux/netdevice.h:3023 (discriminator 3) drivers/net/netdevsim/netdev.c:638 (discriminator 3) drivers/net/netdevsim/netdev.c:917 (discriminator 3)) netdevsim [ 16.682118][ T253] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.682120][ T253] Call Trace: [ 16.682122][ T253] [ 16.682125][ T253] dump_stack_lvl (lib/dump_stack.c:123) [ 16.682135][ T253] check_preemption_disabled (lib/smp_processor_id.c:52) [ 16.682142][ T253] nsim_queue_uninit (./include/linux/netdevice.h:3023 (discriminator 3) drivers/net/netdevsim/netdev.c:638 (discriminator 3) drivers/net/netdevsim/netdev.c:917 (discriminator 3)) netdevsim [ 16.682162][ T253] ? nsim_destroy (drivers/net/netdevsim/netdev.c:1062) netdevsim [ 16.682181][ T253] nsim_destroy (drivers/net/netdevsim/netdev.c:1062) netdevsim [ 16.682201][ T253] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:426 drivers/net/netdevsim/dev.c:1429) netdevsim [ 16.682218][ T253] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1438 drivers/net/netdevsim/dev.c:1661) netdevsim [ 16.682238][ T253] nsim_drv_remove (drivers/net/netdevsim/dev.c:1678) netdevsim [ 16.682255][ T253] device_release_driver_internal (drivers/base/dd.c:1274 drivers/base/dd.c:1295) [ 16.682262][ T253] ? klist_put (lib/klist.c:220) [ 16.682269][ T253] bus_remove_device (./include/linux/kobject.h:193 drivers/base/base.h:73 drivers/base/bus.c:586) [ 16.682278][ T253] device_del (drivers/base/core.c:3882) [ 16.682286][ T253] ? __pfx_device_del (drivers/base/core.c:3836) [ 16.682300][ T253] device_unregister (drivers/base/core.c:3799 drivers/base/core.c:3923) [ 16.682304][ T253] del_device_store (drivers/net/netdevsim/bus.c:230) netdevsim [ 16.682323][ T253] ? __pfx_del_device_store (drivers/net/netdevsim/bus.c:197) netdevsim [ 16.682337][ T253] ? sysfs_file_kobj (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1155 fs/sysfs/file.c:24) [ 16.682345][ T253] ? sysfs_file_kobj (fs/sysfs/file.c:26) [ 16.682354][ T253] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:138) [ 16.682356][ T253] kernfs_fop_write_iter (fs/kernfs/file.c:334) [ 16.682367][ T253] vfs_write (fs/read_write.c:594 fs/read_write.c:686) [ 16.682378][ T253] ? __pfx_vfs_write (fs/read_write.c:667) [ 16.682386][ T253] ? __pfx_lock_vma_under_rcu (mm/mmap_lock.c:137) [ 16.682398][ T253] ? find_held_lock (kernel/locking/lockdep.c:5353) [ 16.682412][ T253] ksys_write (fs/read_write.c:738) [ 16.682417][ T253] ? __pfx_ksys_write (fs/read_write.c:728) [ 16.682420][ T253] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) [ 16.682434][ T253] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 16.682441][ T253] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 16.682445][ T253] RIP: 0033:0x7f40b1950b77 [ 16.682449][ T253] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 All code ======== 0: 0b 00 or (%rax),%eax 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b7 jmp 0xffffffffffffffc7 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 48 89 54 24 18 mov %rdx,0x18(%rsp) 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 74 24 je 0x64 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 48 89 54 24 18 mov %rdx,0x18(%rsp) 12: 48 rex.W 13: 89 .byte 0x89 14: 74 24 je 0x3a [ 16.682452][ T253] RSP: 002b:00007fffd097e9f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 16.682455][ T253] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f40b1950b77 [ 16.682458][ T253] RDX: 0000000000000005 RSI: 0000556daef62250 RDI: 0000000000000001 [ 16.682460][ T253] RBP: 0000556daef62250 R08: 0000000000000003 R09: 0000000000000000 [ 16.682461][ T253] R10: 0000000000001000 R11: 0000000000000246 R12: 0000000000000005 Finger prints: check_preemption_disabled:nsim_queue_uninit:nsim_destroy:__nsim_dev_port_del:nsim_dev_reload_destroy