Thanks for the ping Markus, let us know if you run into it again on another
system
e1000 as fallback is fine, but also slow IMHO.
So I hope you we can one day find what it was.
** Changed in: qemu (Ubuntu)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1945868
Title:
focal kvm virtio_net set_features failed (-22)
Status in linux package in Ubuntu:
Confirmed
Status in qemu package in Ubuntu:
Invalid
Bug description:
Setup linux-modules-5.4.0-88-generic within focal guest on a (equal)
ubuntu 20.04 kvm bare metal machine.
When using virtio as network driver it is failing with:
net eth0: Fail to set guest offload.
virtio_net virtio1 eth0: set_features() failed (-22); wanted
0x0000008000174a29, left 0x0
00000800017ca29
followed by further kern log entries:
------------[ cut here ]------------
netdevice: br0: failed to disable 0x0000000000008000 on eth0!
WARNING: CPU: 0 PID: 1048 at net/core/dev.c:8683
__netdev_update_features+0x4d1/0x9f0
Modules linked in: macvlan virtio_gpu ttm drm_kms_helper fb_sys_fops
input_leds syscopyarea joydev sysfillrect serio_raw sysimgblt mac_hid
sch_fq_codel 9p fscache 9pnet_virtio 9pnet bridge stp llc drm virtio_rng
ip_tables x_tables autofs4 dm_thin_pool dm_persistent_data dm_bio_prison
dm_bufio libcrc32c psmouse virtio_net i2c_piix4 virtio_blk net_failover
failover pata_acpi floppy
CPU: 0 PID: 1048 Comm: brctl Tainted: G W 5.4.0-88-generic
#99-Ubuntu
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
RIP: 0010:__netdev_update_features+0x4d1/0x9f0
Code: c7 c2 9b 30 9b a0 4c 8b 4d 88 48 85 c0 4d 0f 44 d4 4d 89 f0 48 8d 4d
b8 4c 89 ca 4c 89 d6 48 c7 c7 d0 94 a3 a0 e8 dc 2d 19 00 <0f> 0b e9 5b fe ff ff
8b 45 9c 85 c0 0f 84 96 00 00 00 8b 45 9c f7
RSP: 0018:ffffbf1840e0ba98 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 000000000000000f RCX: 0000000000000006
RDX: 0000000000000007 RSI: 0000000000000082 RDI: ffff9c2c13a178c0
RBP: ffffbf1840e0bb10 R08: 00000000000002d1 R09: 0000000000000004
R10: 0000000000000000 R11: 0000000000000001 R12: ffff9c2c0b258000
R13: ffff9c2c0b2580c0 R14: ffff9c2c0615a000 R15: 000000000000000f
FS: 00007f98be558580(0000) GS:ffff9c2c13a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffc24a1080 CR3: 000000030b3e4000 CR4: 00000000000006f0
Call Trace:
netdev_update_features+0x25/0x60
br_device_event+0x20f/0x300 [bridge]
notifier_call_chain+0x55/0x80
raw_notifier_call_chain+0x16/0x20
call_netdevice_notifiers_info+0x2e/0x60
netdev_update_features+0x59/0x60
dev_disable_lro+0x21/0xf0
br_add_if+0x301/0x650 [bridge]
add_del_if+0x67/0x80 [bridge]
br_dev_ioctl+0x54/0x80 [bridge]
dev_ifsioc+0xe5/0x3e0
? _cond_resched+0x19/0x30
dev_ioctl+0x2dd/0x470
sock_do_ioctl+0xa8/0x140
? evict+0x14c/0x1b0
sock_ioctl+0x24f/0x3c0
? _cond_resched+0x19/0x30
? get_max_files+0x20/0x20
do_vfs_ioctl+0x407/0x670
ksys_ioctl+0x67/0x90
__x64_sys_ioctl+0x1a/0x20
do_syscall_64+0x57/0x190
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f98be47c50b
Code: 0f 1e fa 48 8b 05 85 39 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff
ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73
01 c3 48 8b 0d 55 39 0d 00 f7 d8 64 89 01 48
RSP: 002b:00007ffd783321e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f98be47c50b
RDX: 00007ffd78332210 RSI: 00000000000089a2 RDI: 0000000000000003
RBP: 00007ffd78332210 R08: 0000000000000020 R09: fefefeff77686d74
R10: 00007ffd78333e80 R11: 0000000000000246 R12: 00007ffd78333e7e
R13: 00007ffd78333e7e R14: 0000000000000000 R15: 0000000000000000
---[ end trace 240d361752e8f3f0 ]---
------------[ cut here ]------------
Temporary solution is to return to the old rtl8139 driver and slow
network down
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