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+-------------------------------------------------------------+------------+------------+ | WARNING:at_include/net/netdev_lock.h:#netdev_nl_dev_fill | 0 | 5 | | RIP:netdev_nl_dev_fill | 0 | 5 | +-------------------------------------------------------------+------------+------------+ If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202504151654.adca9912-lkp@intel.com [ 141.666631][ T3846] ------------[ cut here ]------------ [ 141.668033][ T3846] WARNING: CPU: 0 PID: 3846 at include/net/netdev_lock.h:17 netdev_nl_dev_fill (include/net/netdev_lock.h:17) [ 141.669548][ T3846] Modules linked in: usbtest [ 141.670575][ T3846] CPU: 0 UID: 0 PID: 3846 Comm: trinity-c0 Not tainted 6.14.0-13326-g99e44f39a8f7 #1 NONE [ 141.672184][ T3846] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 141.673817][ T3846] RIP: 0010:netdev_nl_dev_fill (include/net/netdev_lock.h:17) [ 141.674755][ T3846] Code: 0f 85 10 01 00 00 45 03 75 00 45 29 fe 4c 89 f8 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 14 01 00 00 45 89 37 31 c0 e9 27 ff ff ff <0f> 0b e9 08 fc ff ff 0f 0b 41 80 3c 1c 00 0f 85 f4 fe ff ff e9 f7 All code ======== 0: 0f 85 10 01 00 00 jne 0x116 6: 45 03 75 00 add 0x0(%r13),%r14d a: 45 29 fe sub %r15d,%r14d d: 4c 89 f8 mov %r15,%rax 10: 48 c1 e8 03 shr $0x3,%rax 14: 0f b6 04 18 movzbl (%rax,%rbx,1),%eax 18: 84 c0 test %al,%al 1a: 0f 85 14 01 00 00 jne 0x134 20: 45 89 37 mov %r14d,(%r15) 23: 31 c0 xor %eax,%eax 25: e9 27 ff ff ff jmp 0xffffffffffffff51 2a:* 0f 0b ud2 <-- trapping instruction 2c: e9 08 fc ff ff jmp 0xfffffffffffffc39 31: 0f 0b ud2 33: 41 80 3c 1c 00 cmpb $0x0,(%r12,%rbx,1) 38: 0f 85 f4 fe ff ff jne 0xffffffffffffff32 3e: e9 .byte 0xe9 3f: f7 .byte 0xf7 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: e9 08 fc ff ff jmp 0xfffffffffffffc0f 7: 0f 0b ud2 9: 41 80 3c 1c 00 cmpb $0x0,(%r12,%rbx,1) e: 0f 85 f4 fe ff ff jne 0xffffffffffffff08 14: e9 .byte 0xe9 15: f7 .byte 0xf7 [ 141.677856][ T3846] RSP: 0000:ffffc90003dff950 EFLAGS: 00010246 [ 141.678825][ T3846] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 141.680156][ T3846] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 141.681572][ T3846] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 [ 141.682885][ T3846] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88810f6dc000 [ 141.684194][ T3846] R13: dffffc0000000000 R14: ffff88813add8a00 R15: ffffc90003dff9a0 [ 141.685536][ T3846] FS: 0000000008890880(0000) GS:0000000000000000(0000) knlGS:0000000000000000 [ 141.686950][ T3846] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 141.688016][ T3846] CR2: 0000000000001000 CR3: 000000012d9f2000 CR4: 00000000000406b0 [ 141.692243][ T3846] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 141.693575][ T3846] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 141.694988][ T3846] Call Trace: [ 141.695668][ T3846] [ 141.696325][ T3846] ? __alloc_skb (net/core/skbuff.c:684) [ 141.697154][ T3846] netdev_genl_dev_notify (net/core/netdev-genl.c:102) [ 141.698076][ T3846] ? __cfi_netdev_genl_netdevice_event (net/core/netdev-genl.c:956) [ 141.699093][ T3846] netdev_genl_netdevice_event (net/core/netdev-genl.c:971) [ 141.700068][ T3846] raw_notifier_call_chain (kernel/notifier.c:90 kernel/notifier.c:453) [ 141.700981][ T3846] register_netdevice (net/core/dev.c:2273 net/core/dev.c:2287 net/core/dev.c:11109) [ 141.701874][ T3846] register_netdev (net/core/dev.c:11188) [ 141.702692][ T3846] loopback_net_init (drivers/net/loopback.c:219) [ 141.703546][ T3846] ops_init (net/core/net_namespace.c:139) [ 141.704338][ T3846] ? lock_acquire (kernel/locking/lockdep.c:5866) [ 141.705148][ T3846] setup_net (net/core/net_namespace.c:364) [ 141.705896][ T3846] copy_net_ns (net/core/net_namespace.c:518) [ 141.706671][ T3846] create_new_namespaces (kernel/nsproxy.c:110) [ 141.707596][ T3846] unshare_nsproxy_namespaces (kernel/nsproxy.c:228) [ 141.708613][ T3846] ksys_unshare (kernel/fork.c:3377) [ 141.709417][ T3846] __ia32_sys_unshare (kernel/fork.c:3446 kernel/fork.c:3444 kernel/fork.c:3444) [ 141.710301][ T3846] do_int80_emulation (arch/x86/entry/syscall_32.c:?) [ 141.711196][ T3846] ? do_syscall_64 (arch/x86/entry/syscall_64.c:113) [ 141.712062][ T3846] ? _copy_to_user (arch/x86/include/asm/uaccess_64.h:126 arch/x86/include/asm/uaccess_64.h:147 include/linux/uaccess.h:197 lib/usercopy.c:26) [ 141.712883][ T3846] ? do_int80_emulation (arch/x86/include/asm/jump_label.h:36 arch/x86/entry/syscall_32.c:148) [ 141.713749][ T3846] asm_int80_emulation (arch/x86/include/asm/idtentry.h:626) [ 141.714602][ T3846] RIP: 0033:0x407ebc [ 141.715337][ T3846] Code: 83 c0 01 41 89 80 40 30 00 00 8b 44 24 04 4c 89 d1 48 8b 54 24 08 4c 89 de 4c 89 e7 55 41 50 41 51 41 52 41 53 4c 89 cd cd 80 <41> 5b 41 5a 41 59 41 58 5d 48 3d 7a ff ff ff 49 89 c4 0f 87 5c 01 All code ======== 0: 83 c0 01 add $0x1,%eax 3: 41 89 80 40 30 00 00 mov %eax,0x3040(%r8) a: 8b 44 24 04 mov 0x4(%rsp),%eax e: 4c 89 d1 mov %r10,%rcx 11: 48 8b 54 24 08 mov 0x8(%rsp),%rdx 16: 4c 89 de mov %r11,%rsi 19: 4c 89 e7 mov %r12,%rdi 1c: 55 push %rbp 1d: 41 50 push %r8 1f: 41 51 push %r9 21: 41 52 push %r10 23: 41 53 push %r11 25: 4c 89 cd mov %r9,%rbp 28: cd 80 int $0x80 2a:* 41 5b pop %r11 <-- trapping instruction 2c: 41 5a pop %r10 2e: 41 59 pop %r9 30: 41 58 pop %r8 32: 5d pop %rbp 33: 48 3d 7a ff ff ff cmp $0xffffffffffffff7a,%rax 39: 49 89 c4 mov %rax,%r12 3c: 0f .byte 0xf 3d: 87 .byte 0x87 3e: 5c pop %rsp 3f: 01 .byte 0x1 Code starting with the faulting instruction =========================================== 0: 41 5b pop %r11 2: 41 5a pop %r10 4: 41 59 pop %r9 6: 41 58 pop %r8 8: 5d pop %rbp 9: 48 3d 7a ff ff ff cmp $0xffffffffffffff7a,%rax f: 49 89 c4 mov %rax,%r12 12: 0f .byte 0xf 13: 87 .byte 0x87 14: 5c pop %rsp 15: 01 .byte 0x1 [ 141.718357][ T3846] RSP: 002b:00007ffd5d3ef228 EFLAGS: 00000202 ORIG_RAX: 0000000000000136 [ 141.719853][ T3846] RAX: ffffffffffffffda RBX: 0000000044020000 RCX: 000000000000000d [ 141.721224][ T3846] RDX: 00000000c7c7c7c7 RSI: 000000000000003a RDI: fffffffffffffffd [ 141.722604][ T3846] RBP: fffffffffffffff6 R08: 00007ff21606d000 R09: fffffffffffffff6 [ 141.724055][ T3846] R10: 000000000000000d R11: 000000000000003a R12: fffffffffffffffd [ 141.725437][ T3846] R13: 00007ff215d76058 R14: 0000000008890850 R15: 00007ff215d76000 [ 141.726820][ T3846] [ 141.727442][ T3846] irq event stamp: 4373695 [ 141.728266][ T3846] hardirqs last enabled at (4373707): __console_unlock (arch/x86/include/asm/irqflags.h:19 arch/x86/include/asm/irqflags.h:109 arch/x86/include/asm/irqflags.h:151 kernel/printk/printk.c:344 kernel/printk/printk.c:2885) [ 141.729809][ T3846] hardirqs last disabled at (4373716): __console_unlock (kernel/printk/printk.c:342) [ 141.731371][ T3846] softirqs last enabled at (4373318): __irq_exit_rcu (arch/x86/include/asm/jump_label.h:36 kernel/softirq.c:682) [ 141.732938][ T3846] softirqs last disabled at (4373309): __irq_exit_rcu (arch/x86/include/asm/jump_label.h:36 kernel/softirq.c:682) [ 141.734464][ T3846] ---[ end trace 0000000000000000 ]--- The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250415/202504151654.adca9912-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki