From: Stefan Agner <stefan@agner.ch>
To: marc.zyngier@arm.com, christoffer.dall@linaro.org
Cc: kvmarm@lists.cs.columbia.edu
Subject: KVM on ARM crashes with new VGIC v4.7-rc7
Date: Thu, 21 Jul 2016 22:57:07 -0700 [thread overview]
Message-ID: <e2f7196ca6c70c55463a45b490f6731a@agner.ch> (raw)
Hi,
I tried KVM on a Cortex-A7 platform (i.MX 7Dual SoC) and encountered
this stack trace immediately after invoking qemu-system-arm:
Unable to handle kernel paging request at virtual address ffffffe4
pgd = 8ca52740
[ffffffe4] *pgd=80000080007003, *pmd=8ff7e003, *pte=00000000
Internal error: Oops: 207 [#1] SMP ARM
Modules linked in:
CPU: 0 PID: 329 Comm: qemu-system-arm Tainted: G W
4.7.0-rc7-00094-gea3ed2c #109
Hardware name: Freescale i.MX7 Dual (Device Tree)
task: 8ca3ee40 ti: 8d2b0000 task.ti: 8d2b0000
PC is at do_raw_spin_lock+0x8/0x1dc
LR is at kvm_vgic_flush_hwstate+0x8c/0x224
pc : [<8027c87c>] lr : [<802172d4>] psr: 60070013
sp : 8d2b1e38 ip : 8d2b0000 fp : 00000001
r10: 8d2b0000 r9 : 00010000 r8 : 8d2b8e54
fec 30be0000.ethernet eth0: MDIO read timeout
r7 : 8d2b8000 r6 : 8d2b8e74 r5 : 00000000 r4 : ffffffe0
r3 : 00004ead r2 : 00000000 r1 : 00000000 r0 : ffffffe0
Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: 30c5387d Table: 8ca52740 DAC: fffffffd
Process qemu-system-arm (pid: 329, stack limit = 0x8d2b0210)
Stack: (0x8d2b1e38 to 0x8d2b2000)
1e20: ffffffe0
00000000
1e40: 8d2b8e74 8d2b8000 8d2b8e54 00010000 8d2b0000 802172d4 8d2b8000
810074f8
1e60: 81007508 8ca5f800 8d284000 00010000 8d2b0000 8020fbd4 8ce9a000
8ca5f800
1e80: 00000000 00010000 00000000 00ff0000 8d284000 00000000 00000000
7ffbfeff
1ea0: fffffffe 00000000 8d28b780 00000000 755fec6c 00000000 00000000
ffffe000
1ec0: 8d2b8000 00000000 8d28b780 00000000 755fec6c 8020af90 00000000
8023f248
1ee0: 0000000a 755fe98c 8d2b1f08 00000008 8021aa84 ffffe000 00000000
00000000
1f00: 8a00d860 8d28b780 80334f94 00000000 8d2b0000 80334748 00000000
00000000
1f20: 00000000 8d28b780 00004000 00000009 8d28b500 00000024 8104ebee
80bc2ec4
1f40: 80bafa24 8034138c 00000000 00000000 80341248 00000000 755fec6c
007c1e70
1f60: 00000009 00004258 0000ae80 8d28b781 00000009 8d28b780 0000ae80
00000000
1f80: 8d2b0000 00000000 755fec6c 80334f94 007c1e70 322a7400 00004258
00000036
1fa0: 8021aa84 8021a900 007c1e70 322a7400 00000009 0000ae80 00000000
755feac0
1fc0: 007c1e70 322a7400 00004258 00000036 7e9aff58 01151da4 76f8b4c0
755fec6c
1fe0: 0038192c 755fea9c 00048ae7 7697d66c 60070010 00000009 00000000
00000000
[<8027c87c>] (do_raw_spin_lock) from [<802172d4>]
(kvm_vgic_flush_hwstate+0x8c/0x224)
[<802172d4>] (kvm_vgic_flush_hwstate) from [<8020fbd4>]
(kvm_arch_vcpu_ioctl_run+0x110/0x478)
[<8020fbd4>] (kvm_arch_vcpu_ioctl_run) from [<8020af90>]
(kvm_vcpu_ioctl+0x2e0/0x6d4)
[<8020af90>] (kvm_vcpu_ioctl) from [<80334748>]
(do_vfs_ioctl+0xa0/0x8b8)
[<80334748>] (do_vfs_ioctl) from [<80334f94>] (SyS_ioctl+0x34/0x5c)
[<80334f94>] (SyS_ioctl) from [<8021a900>] (ret_fast_syscall+0x0/0x1c)
Code: e49de004 ea09ea24 e92d47f0 e3043ead (e5902004)
---[ end trace cb88537fdc8fa206 ]---
I use CONFIG_KVM_NEW_VGIC=y. This happens to me with a rather minimal
qemu invocation (qemu-system-arm -enable-kvm -M virt -cpu host
-nographic -serial stdio -kernel zImage).
Using a bit older Qemu version 2.4.0.
Is there something missing on my platform or is this a general KVM ARM
issue?
--
Stefan
next reply other threads:[~2016-07-22 5:55 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-22 5:57 Stefan Agner [this message]
2016-07-22 7:47 ` KVM on ARM crashes with new VGIC v4.7-rc7 Marc Zyngier
2016-07-22 7:52 ` Auger Eric
2016-07-22 7:59 ` Marc Zyngier
2016-07-22 8:10 ` Stefan Agner
2016-07-22 9:15 ` Marc Zyngier
2016-07-22 10:42 ` Andre Przywara
2016-07-22 14:35 ` Andrew Jones
2016-07-22 15:40 ` Marc Zyngier
2016-07-22 15:42 ` Auger Eric
2016-07-22 17:38 ` Andrew Jones
2016-07-22 17:47 ` Stefan Agner
2016-07-22 17:49 ` Marc Zyngier
2016-07-22 17:56 ` Stefan Agner
2016-07-22 18:11 ` Marc Zyngier
2016-07-23 7:45 ` Stefan Agner
2016-07-23 10:20 ` Marc Zyngier
2016-07-23 16:33 ` Stefan Agner
2016-07-24 9:30 ` Marc Zyngier
2016-07-25 6:28 ` Stefan Agner
2016-07-24 12:22 ` Marc Zyngier
2016-07-24 12:36 ` Marc Zyngier
2016-07-25 6:14 ` Stefan Agner
2016-07-25 8:11 ` Marc Zyngier
2016-07-25 8:17 ` Marc Zyngier
2016-07-25 13:50 ` Andre Przywara
2016-07-25 14:05 ` Marc Zyngier
2016-07-25 14:28 ` Andrew Jones
2016-07-25 14:39 ` Marc Zyngier
2016-07-25 15:07 ` Marc Zyngier
2016-07-25 15:25 ` Andre Przywara
2016-07-25 15:29 ` Andrew Jones
2016-07-25 15:38 ` Marc Zyngier
2016-07-25 16:52 ` Stefan Agner
2016-07-25 17:06 ` Marc Zyngier
2016-07-25 8:42 ` Marc Zyngier
2016-07-25 6:36 ` Stefan Agner
2016-07-25 13:33 ` Andre Przywara
2016-07-25 16:18 ` Stefan Agner
2016-07-22 18:06 ` Marc Zyngier
2016-07-22 19:45 ` Andrew Jones
2016-07-22 19:54 ` Marc Zyngier
2016-07-25 9:00 ` Andrew Jones
2016-07-25 9:05 ` Marc Zyngier
2016-07-25 9:18 ` Andrew Jones
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