[ 25.925024][ T339] printk: legacy console [netcon0] enabled
[ 25.925603][ T339] netconsole: network logging started
[ 29.822137][ T389] Test #1 from CPU3: netcons_semCu
[ 29.822752][ T389] ------------[ cut here ]------------
[ 29.822756][ T389] WARNING: CPU: 3 PID: 389 at net/core/dev.c:4737 ____napi_schedule+0x28b/0x340
[ 29.822775][ T389] Modules linked in: netconsole netdevsim
[ 29.822785][ T389] CPU: 3 UID: 0 PID: 389 Comm: echo Not tainted 6.14.0-rc1-virtme #1
[ 29.822793][ T389] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 29.822796][ T389] RIP: 0010:____napi_schedule+0x28b/0x340
[ 29.822802][ T389] Code: 84 7b fe ff ff be 08 00 00 00 4c 89 e7 e8 fd d1 76 fe f0 80 4b 11 02 48 83 c4 08 4c 89 ef 5b 5d 41 5c 41 5d e9 d6 e3 fc fd 90 <0f> 0b 90 e9 e1 fd ff ff 48 89 ea 48 89 df e8 92 4f d9 fe e9 fa fe
[ 29.822807][ T389] RSP: 0018:ffffc900007776f0 EFLAGS: 00010046
[ 29.822811][ T389] RAX: 0000000080000003 RBX: ffff888011dbf000 RCX: 1ffffffff6ff06e2
[ 29.822815][ T389] RDX: 0000000000000000 RSI: ffff888011dbf000 RDI: ffff8880361be8c0
[ 29.822818][ T389] RBP: ffff8880361be8c0 R08: 0000000000000001 R09: fffff520000eeeda
[ 29.822821][ T389] R10: ffffc900007776d7 R11: ffffc900007772a1 R12: ffff888008582500
[ 29.822825][ T389] R13: 0000000000000070 R14: ffff888011dbf000 R15: ffff88801004a000
[ 29.822828][ T389] FS: 00007f9f91742740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[ 29.822833][ T389] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 29.822838][ T389] CR2: 00005619443002f8 CR3: 000000000fed0001 CR4: 0000000000772ef0
[ 29.822848][ T389] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 29.822851][ T389] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 29.822857][ T389] PKRU: 55555554
[ 29.822858][ T389] Call Trace:
[ 29.822861][ T389]
[ 29.822863][ T389] ? ____napi_schedule+0x28b/0x340
[ 29.822868][ T389] ? __warn+0xd1/0x1c0
[ 29.822880][ T389] ? ____napi_schedule+0x28b/0x340
[ 29.822894][ T389] ? report_bug+0x28c/0x2d0
[ 29.822913][ T389] ? handle_bug+0x54/0xa0
[ 29.822920][ T389] ? exc_invalid_op+0x18/0x50
[ 29.822926][ T389] ? asm_exc_invalid_op+0x1a/0x20
[ 29.822957][ T389] ? ____napi_schedule+0x28b/0x340
[ 29.822975][ T389] __napi_schedule+0x32/0x70
[ 29.822984][ T389] nsim_start_xmit+0x4e0/0x6f0 [netdevsim]
[ 29.823009][ T389] ? netif_skb_features+0x23e/0xa80
[ 29.823027][ T389] netpoll_start_xmit+0x3c3/0x670
[ 29.823046][ T389] __netpoll_send_skb+0x3e9/0x800
[ 29.823072][ T389] netpoll_send_skb+0x2a/0xa0
[ 29.823084][ T389] send_ext_msg_udp+0x286/0x350 [netconsole]
[ 29.823114][ T389] write_ext_msg+0x1c6/0x230 [netconsole]
[ 29.823136][ T389] console_emit_next_record+0x20d/0x430
[ 29.823146][ T389] ? perf_trace_lock+0x90/0x460
[ 29.823160][ T389] ? __pfx_console_emit_next_record+0x10/0x10
[ 29.823192][ T389] console_flush_all+0x3b5/0x630
[ 29.823213][ T389] ? __pfx_console_flush_all+0x10/0x10
[ 29.823241][ T389] console_unlock+0xbb/0x1a0
[ 29.823249][ T389] ? __pfx_console_unlock+0x10/0x10
[ 29.823255][ T389] ? lock_acquire.part.0+0x2c0/0x330
[ 29.823259][ T389] ? vprintk_emit.part.0+0x20c/0x250
[ 29.823273][ T389] ? vprintk_emit.part.0+0x20c/0x250
[ 29.823280][ T389] ? __down_trylock_console_sem+0x75/0xb0
[ 29.823285][ T389] ? vprintk_emit.part.0+0x20c/0x250
[ 29.823303][ T389] vprintk_emit.part.0+0x236/0x250
[ 29.823314][ T389] ? __pfx_vprintk_emit.part.0+0x10/0x10
[ 29.823331][ T389] ? other_cpu_in_panic+0x22/0xc0
[ 29.823350][ T389] devkmsg_emit.constprop.0+0xac/0xe0
[ 29.823357][ T389] ? __pfx_devkmsg_emit.constprop.0+0x10/0x10
[ 29.823369][ T389] ? __kasan_kmalloc+0x7f/0x90
[ 29.823378][ T389] ? trace_kmalloc+0x2d/0xe0
[ 29.823388][ T389] ? __kmalloc_noprof+0x1f2/0x490
[ 29.823393][ T389] ? ___ratelimit+0x17f/0x420
[ 29.823413][ T389] devkmsg_write+0x194/0x300
[ 29.823418][ T389] ? usage_skip+0x132/0x190
[ 29.823425][ T389] ? __pfx_devkmsg_write+0x10/0x10
[ 29.823454][ T389] vfs_write+0xa87/0x11e0
[ 29.823472][ T389] ? __pfx_vfs_write+0x10/0x10
[ 29.823489][ T389] ? __lock_release+0x103/0x460
[ 29.823493][ T389] ? do_user_addr_fault+0x972/0xe30
[ 29.823516][ T389] ? __pfx___up_read+0x10/0x10
[ 29.823533][ T389] ksys_write+0xf8/0x1d0
[ 29.823542][ T389] ? __pfx_ksys_write+0x10/0x10
[ 29.823547][ T389] ? do_user_addr_fault+0x97c/0xe30
[ 29.823571][ T389] do_syscall_64+0xc1/0x1d0
[ 29.823583][ T389] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 29.823590][ T389] RIP: 0033:0x7f9f91883b77
[ 29.823596][ T389] 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
[ 29.823601][ T389] RSP: 002b:00007ffc73fa7e38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 29.823606][ T389] RAX: ffffffffffffffda RBX: 0000000000000021 RCX: 00007f9f91883b77
[ 29.823609][ T389] RDX: 0000000000000021 RSI: 00005619442ff2f0 RDI: 0000000000000001
[ 29.823612][ T389] RBP: 00005619442ff2f0 R08: 0000000000000020 R09: 0000000000000077
[ 29.823615][ T389] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000021
[ 29.823618][ T389] R13: 00007f9f9193f760 R14: 0000000000000021 R15: 00007f9f9193a9c0
[ 29.823652][ T389]
[ 29.823654][ T389] irq event stamp: 42864
[ 29.823656][ T389] hardirqs last enabled at (42863): [] console_emit_next_record+0x37e/0x430
[ 29.823663][ T389] hardirqs last disabled at (42864): [] console_emit_next_record+0x388/0x430
[ 29.823668][ T389] softirqs last enabled at (42258): [] handle_softirqs+0x32e/0x5c0
[ 29.823677][ T389] softirqs last disabled at (42079): [] __irq_exit_rcu+0xc4/0x100
[ 29.823682][ T389] ---[ end trace 0000000000000000 ]---
[ 30.951309][ T407] Test #2 from CPU3: netcons_semCu
[ 31.924498][ T423] Test #3 from CPU0: netcons_semCu