From: Paolo Bonzini <pbonzini@redhat.com>
To: Sean Christopherson <seanjc@google.com>,
Maxim Levitsky <mlevitsk@redhat.com>
Cc: "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
David Woodhouse <dwmw2@infradead.org>
Subject: Re: kvm_gfn_to_pfn_cache_refresh started getting a warning recently
Date: Tue, 26 Apr 2022 19:11:26 +0200 [thread overview]
Message-ID: <cc0c62dd-9c95-f3b9-b736-226b8c864cd4@redhat.com> (raw)
In-Reply-To: <YmghjwgcSZzuH7Rb@google.com>
On 4/26/22 18:45, Sean Christopherson wrote:
> On Tue, Apr 26, 2022, Maxim Levitsky wrote:
>> [ 390.511995] BUG: sleeping function called from invalid context at include/linux/highmem-internal.h:161
>> [ 390.513681] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 4439, name: CPU 0/KVM
>
> This is my fault. memremap() can sleep as well. I'll work on a fix.
Indeed, "KVM: Fix race between mmu_notifier invalidation and pfncache
refresh" hadn't gone through a full test cycle yet.
Paolo
next prev parent reply other threads:[~2022-04-26 17:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-26 15:33 kvm_gfn_to_pfn_cache_refresh started getting a warning recently Maxim Levitsky
2022-04-26 16:45 ` Sean Christopherson
2022-04-26 16:56 ` Maxim Levitsky
2022-04-26 17:11 ` Paolo Bonzini [this message]
2022-04-26 17:34 ` Sean Christopherson
2022-04-26 18:15 ` Sean Christopherson
2022-04-27 12:22 ` Paolo Bonzini
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