linux-kernel - BUG: sleeping function called from invalid context at mm/slub.c:793

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Date:	Mon, 10 Jan 2011 12:54:33 +0200
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>
Cc:	x86@...nel.org, kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: BUG: sleeping function called from invalid context at mm/slub.c:793

Every time I run qemu with KVM enabled I get this in dmesg:

[  182.878328] BUG: sleeping function called from invalid context at mm/slub.c:793
[  182.878339] in_atomic(): 1, irqs_disabled(): 0, pid: 4992, name: qemu
[  182.878355] Pid: 4992, comm: qemu Not tainted 2.6.37+ #31
[  182.878361] Call Trace:
[  182.878381]  [<c104e317>] ? __might_sleep+0xd0/0xd7
[  182.878394]  [<c10ec337>] ? slab_pre_alloc_hook.clone.39+0x23/0x27
[  182.878404]  [<c10ece27>] ? kmem_cache_alloc+0x22/0xc8
[  182.878414]  [<c1030221>] ? init_fpu+0x44/0x7b
[  182.878426]  [<c130cc29>] ? do_device_not_available+0x0/0x1b
[  182.878435]  [<c1030221>] ? init_fpu+0x44/0x7b
[  182.878444]  [<c102a588>] ? math_state_restore+0x24/0x47
[  182.878453]  [<c130cc39>] ? do_device_not_available+0x10/0x1b
[  182.878462]  [<c130c4ab>] ? error_code+0x67/0x6c
[  182.878475]  [<c1012340>] ? kvm_load_guest_fpu+0xa1/0xaa
[  182.878484]  [<c1013364>] ? kvm_arch_vcpu_ioctl_run+0x798/0xbe8
[  182.878496]  [<c1004523>] ? kvm_vcpu_ioctl+0x105/0x46e
[  182.878508]  [<c107dce0>] ? get_futex_key+0x73/0x132
[  182.878517]  [<c107e352>] ? futex_wake+0xb6/0xc0
[  182.878527]  [<c107f8d6>] ? do_futex+0x87/0x669
[  182.878535]  [<c100441e>] ? kvm_vcpu_ioctl+0x0/0x46e
[  182.878545]  [<c1101ebf>] ? do_vfs_ioctl+0x4a0/0x4d1
[  182.878554]  [<c130e348>] ? do_page_fault+0x2eb/0x316
[  182.878564]  [<c1101f36>] ? sys_ioctl+0x46/0x68
[  182.878572]  [<c130bdc0>] ? syscall_call+0x7/0xb
[  182.878585]  [<c1300000>] ? aer_probe+0x1da/0x274

.config and dmesg attached.

-- 
 Kirill A. Shutemov

View attachment "dmesg" of type "text/plain" (85236 bytes)

View attachment ".config" of type "text/plain" (72953 bytes)