Re: [win-pv-devel] Windows 10 domU is unstable with PV Bus Driver

["Michel D'HOOGE" <michel.dhooge@xxxxxxxxx>]

A follow-up to my previous mail...

I missed that report, which occurred 58s before the one I already provided.

Michel


vif vif-3-0 vif3.0: Trying to unmap invalid handle! pending_idx: 0x18
------------[ cut here ]------------
kernel BUG at drivers/net/xen-netback/netback.c:430!
invalid opcode: 0000 [#1] PREEMPT SMP
Modules linked in: nfnetlink_queue xt_physdev br_netfilter bridge stp
llc tun openvs
 nf_conntrack_broadcast nf_conntrack_irc nf_conntrack_h323
nf_conntrack_ftp ts_kmp n
 shpchp intel_pch_thermal tpm_tis tpm_tis_core thermal fan tpm ac
battery rfkill wmi
CPU: 3 PID: 17780 Comm: vif3.0-q2-deall Tainted: G           O
4.14.4-1-ARCH #1
Hardware name: Micro-Star International Co., Ltd. GS70 6QC/MS-1776,
BIOS E1776IMS.11
task: ffff880050d33b00 task.stack: ffffc90040d04000
RIP: e030:xenvif_tx_dealloc_action+0x15e/0x250 [xen_netback]
RSP: e02b:ffffc90040d07c88 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffc90044c60288 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880189acdc98
RBP: 00000000ffffffff R08: 0000000000000000 R09: 000000000000047c
R10: 0000000080000000 R11: ffffffff8213536d R12: ffffc90044c56b40
R13: 000000000000375e R14: ffffffff80000000 R15: ffffffffc04839d0
FS:  0000000000000000(0000) GS:ffff880189ac0000(0000) knlGS:ffff880189ac0000
CS:  e033 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000038f4e94ff900 CR3: 000000011d9d9000 CR4: 0000000000042660
Call Trace:
 ? check_preempt_wakeup+0x102/0x220
 ? _raw_spin_unlock+0xc/0x20
 ? load_balance+0x4e1/0x9b0
 ? __update_load_avg_se.isra.37+0x148/0x150
 ? __update_load_avg_se.isra.37+0x148/0x150
 ? xenvif_map_frontend_data_rings+0xf0/0xf0 [xen_netback]
 ? update_load_avg+0x41d/0x590
 ? xen_mc_flush+0xd8/0x1d0
 ? xen_load_sp0+0x86/0x1b0
 ? __switch_to+0x1dd/0x4c0
 ? _raw_spin_unlock_irq+0x13/0x30
 ? finish_task_switch+0x75/0x200
 ? __schedule+0x241/0x870
 ? xenvif_map_frontend_data_rings+0xf0/0xf0 [xen_netback]
 xenvif_dealloc_kthread+0x7e/0x110 [xen_netback]
 ? wait_woken+0x80/0x80
 kthread+0x118/0x130
 ? kthread_create_on_node+0x70/0x70
 ret_from_fork+0x25/0x30
Code: 81 fd ff 00 00 00 0f 86 4d ff ff ff 0f 0b 48 89 03 eb b1 49 8b
44 24 20 48 c7
RIP: xenvif_tx_dealloc_action+0x15e/0x250 [xen_netback] RSP: ffffc90040d07c88
---[ end trace ac8092fb8b6c7a5c ]---

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