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[185.219.167.24]) by smtp.gmail.com with ESMTPSA id 10-20020a170906210a00b007c0f2d051f4sm7589943ejt.203.2023.01.12.08.57.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 12 Jan 2023 08:57:44 -0800 (PST) Message-ID: <3da07f36-52ce-58ef-845b-67c98f78410d@kernel.org> Date: Thu, 12 Jan 2023 17:57:43 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 Subject: Re: Stalls in qemu with host running 6.1 (everything stuck at mmap_read_lock()) From: Jiri Slaby To: Pedro Falcato Cc: Paolo Bonzini , kvm@vger.kernel.org, Andrew Morton , mm , yuzhao@google.com, Michal Hocko , Vlastimil Babka , shy828301@gmail.com References: <7aa90802-d25c-baa3-9c03-2502ad3c708a@kernel.org> <17b584f1-9d3b-35bb-7035-9b225936fd23@kernel.org> Content-Language: en-US In-Reply-To: <17b584f1-9d3b-35bb-7035-9b225936fd23@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: BBA044000D X-Rspamd-Server: rspam09 X-Rspam-User: X-Stat-Signature: c8nfp4jgzw4n57k7yarodfiqofgcm4k9 X-HE-Tag: 1673542666-76584 X-HE-Meta: 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 jvzxJR6R tOGfjrrOGpLTY6HqPGtSVQ7L9wQJXHBtzylQsb1bjOzqJI7m7KjiS5X6jbPoyr3CxTu3HLELqrmYebjzxKOAYpN+DomLP1y6Tp2KPxW3IYxFYOUY3w5UwqkjHczFwmqwnKsZ4jsYSjT6452Rc5+CCI/IUUmEmtdeRyF3KYiP5AIDqGfy0PNv/SE+RfhsuIKf0C+AkyoqBz0/70FGWStrJGdUBdM5LUaEqk08vbh6QnTQswhXrOtWPgjf7SMn5luZ6I7ZW1zHtX9TpkUgW2k1vp/JpZA/4cVLF8IHsUdoZzURPpVGiVMilzUUAP0hcrMnmsghQYzd50yfBh1iW9aC7ffxfOg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 12. 01. 23, 16:43, Jiri Slaby wrote: >> and dump a kcore (kdump is set up). > > Going to trigger a dump now. Hmm, crash doesn't seems to work for 6.1, apparently. Once it did nothing, second time, it dumped an empty dir... So for now, only the lock dump is available. Next time, I will dump at least process states (sysrq-t). thanks, -- js suse labs