Created attachment 288617 [details] dmesg (kernel 5.6.5, Shuttle XPC FS51, Pentium 4) Filing this here 'cause the Call Trace shows stuff connected to netdev and I do run this i686 box via SSH over wireless lan. [...] [71181.398836] ------------[ cut here ]------------ [71181.399055] WARNING: CPU: 0 PID: 6719 at kernel/locking/lockdep.c:1119 lockdep_register_key+0x10/0x5d [71181.399176] Modules linked in: auth_rpcgss nfsv4 dns_resolver nfs lockd grace sunrpc rt2500pci eeprom_93cx6 rt2x00pci rt2x00mmio rt2x00lib led_class mac80211 evdev 8139too firewire_ohci firewire_core sr_mod crc_itu_t cdrom mii snd_intel8x0 cfg80211 ohci_pci snd_ac97_codec ac97_bus snd_pcm 8250 ohci_hcd 8250_base ehci_pci ehci_hcd serial_core snd_timer usbcore rfkill snd libarc4 button fan thermal usb_common soundcore sis_agp i2c_sis96x agpgart zstd zram zsmalloc [71181.399621] CPU: 0 PID: 6719 Comm: emerge Not tainted 5.6.5-gentoo-Pentium4 #1 [71181.399727] Hardware name: /FS51, BIOS 6.00 PG 12/02/2003 [71181.399817] EIP: lockdep_register_key+0x10/0x5d [71181.399898] Code: f0 06 c5 6a 18 51 b9 fa ff 86 c4 8d 55 f8 89 d8 e8 f7 fd ff ff 8b 5d fc c9 c3 55 89 e5 56 53 89 c3 e8 bb e9 ff ff 85 c0 74 04 <0f> 0b eb 45 e8 f8 e6 ff ff 89 c6 e8 8a f8 ff ff 85 c0 74 33 69 c3 [71181.400093] EAX: 00000001 EBX: c5700e3c ECX: c57009bc EDX: c57009a4 [71181.400185] ESI: 00000001 EDI: 00000000 EBP: cbe5fe74 ESP: cbe5fe6c [71181.400276] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010202 [71181.400371] CR0: 80050033 CR2: b552dd6c CR3: 2957a000 CR4: 000006d0 [71181.400461] Call Trace: [71181.400530] alloc_netdev_mqs+0xe2/0x35a [71181.400608] loopback_net_init+0x1f/0x77 [71181.400684] ? loopback_xmit+0x104/0x104 [71181.400762] ops_init+0xff/0x125 [71181.400832] setup_net+0xb7/0x17b [71181.400904] copy_net_ns+0xd9/0x121 [71181.400979] create_new_namespaces+0xfa/0x18c [71181.401057] unshare_nsproxy_namespaces+0x70/0x82 [71181.401141] ksys_unshare+0x115/0x257 [71181.401215] sys_unshare+0xb/0xd [71181.401286] do_fast_syscall_32+0xab/0xe8 [71181.401366] entry_SYSENTER_32+0xaa/0x102 [71181.401441] EIP: 0xb7ed791d [71181.401509] Code: da 8b 5d 08 e8 18 00 00 00 89 d3 eb 02 31 c0 5b 5d c3 8b 14 24 c3 8b 1c 24 c3 8b 34 24 c3 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 76 [71181.401693] EAX: ffffffda EBX: 68020000 ECX: 00000000 EDX: 00000000 [71181.401784] ESI: bfe5b5b8 EDI: bfe5b4c0 EBP: bfe5b4d0 ESP: bfe5b4ac [71181.401876] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000246 [71181.401973] ? die+0xb/0x3f [71181.402039] irq event stamp: 4202 [71181.402111] hardirqs last enabled at (4201): [<c4ce64f9>] _raw_spin_unlock_irqrestore+0x2f/0x35 [71181.402229] hardirqs last disabled at (4202): [<c4801391>] trace_hardirqs_off_thunk+0xc/0x10 [71181.402344] softirqs last enabled at (4122): [<c4c5f364>] raw_unhash_sk+0x68/0x6c [71181.402448] softirqs last disabled at (4120): [<c4c5f313>] raw_unhash_sk+0x17/0x6c [71181.402555] ---[ end trace b8e1bcd0de91a184 ]--- [71183.331094] ------------[ cut here ]------------ [71183.331308] WARNING: CPU: 0 PID: 2300 at kernel/locking/lockdep.c:5179 lockdep_unregister_key+0x18/0x89 [71183.331443] Modules linked in: auth_rpcgss nfsv4 dns_resolver nfs lockd grace sunrpc rt2500pci eeprom_93cx6 rt2x00pci rt2x00mmio rt2x00lib led_class mac80211 evdev 8139too firewire_ohci firewire_core sr_mod crc_itu_t cdrom mii snd_intel8x0 cfg80211 ohci_pci snd_ac97_codec ac97_bus snd_pcm 8250 ohci_hcd 8250_base ehci_pci ehci_hcd serial_core snd_timer usbcore rfkill snd libarc4 button fan thermal usb_common soundcore sis_agp i2c_sis96x agpgart zstd zram zsmalloc [71183.331922] CPU: 0 PID: 2300 Comm: kworker/u4:3 Tainted: G W 5.6.5-gentoo-Pentium4 #1 [71183.332054] Hardware name: /FS51, BIOS 6.00 PG 12/02/2003 [71183.332154] Workqueue: netns cleanup_net [71183.332240] EIP: lockdep_unregister_key+0x18/0x89 [71183.332329] Code: a1 ac e7 06 c5 ff 80 40 06 00 00 b8 01 00 00 00 c9 c3 55 89 e5 57 56 53 89 c3 e8 f7 2a 47 00 89 d8 e8 c0 f0 ff ff 85 c0 74 04 <0f> 0b eb 68 e8 fd ed ff ff 89 c7 e8 8f ff ff ff 85 c0 74 51 69 35 [71183.332552] EAX: 00000001 EBX: c5700e3c ECX: 00000064 EDX: 00000006 [71183.332653] ESI: c5700780 EDI: 00000001 EBP: e47cbe84 ESP: e47cbe78 [71183.332755] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010202 [71183.332860] CR0: 80050033 CR2: b7396a3c CR3: 2c80e000 CR4: 000006d0 [71183.332962] Call Trace: [71183.333036] free_netdev+0xcb/0x11c [71183.333115] netdev_run_todo+0x1b9/0x1f5 [71183.333199] rtnl_unlock+0x8/0xa [71183.333278] default_device_exit_batch+0xe6/0xee [71183.333368] ? prepare_to_wait_exclusive+0x55/0x55 [71183.333459] ops_exit_list+0x1e/0x43 [71183.333538] cleanup_net+0x147/0x1d4 [71183.333620] process_one_work+0x239/0x3a7 [71183.333704] worker_thread+0x176/0x21f [71183.333785] kthread+0xd1/0xd3 [71183.333860] ? rescuer_thread+0x1e7/0x1e7 [71183.333944] ? kthread_delayed_work_timer_fn+0x6a/0x6a [71183.334039] ret_from_fork+0x2e/0x38 [71183.334119] irq event stamp: 255958 [71183.334198] hardirqs last enabled at (255957): [<c4ce64f9>] _raw_spin_unlock_irqrestore+0x2f/0x35 [71183.334332] hardirqs last disabled at (255958): [<c4801391>] trace_hardirqs_off_thunk+0xc/0x10 [71183.334462] softirqs last enabled at (255734): [<c4bfb227>] dev_mc_flush+0x26/0x2a [71183.334583] softirqs last disabled at (255732): [<c4bfb215>] dev_mc_flush+0x14/0x2a [71183.334700] ---[ end trace b8e1bcd0de91a185 ]--- # lspci 00:00.0 Host bridge: Silicon Integrated Systems [SiS] 651 Host (rev 02) 00:01.0 PCI bridge: Silicon Integrated Systems [SiS] AGP Port (virtual PCI-to-PCI bridge) 00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS962 [MuTIOL Media IO] LPC Controller (rev 14) 00:02.1 SMBus: Silicon Integrated Systems [SiS] SiS961/2/3 SMBus controller 00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 IDE Controller 00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] SiS7012 AC'97 Sound Controller (rev a0) 00:03.0 USB controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) 00:03.1 USB controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) 00:03.2 USB controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) 00:03.3 USB controller: Silicon Integrated Systems [SiS] USB 2.0 Controller 00:0a.0 Network controller: Ralink corp. RT2500 Wireless 802.11bg (rev 01) 00:0f.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter (rev 10) 00:10.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller (rev 46) 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV350 [Radeon 9550/9600/X1050 Series] 01:00.1 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] RV350 [Radeon 9550/9600/X1050 Series] (Secondary) # cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Intel(R) Pentium(R) 4 CPU 2.80GHz stepping : 7 microcode : 0x33 cpu MHz : 2796.477 cache size : 512 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe pebs bts cpuid cid xtpr bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit bogomips : 5595.99 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 32 bits virtual power management:
Created attachment 288619 [details] kernel .config (kernel 5.6.5, Shuttle XPC FS51, Pentium 4)
As I sold the hardware in question I no longer can test. Closing as obsolete.