From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Date: Thu, 07 Jun 2018 16:07:23 +0530 From: vrbagal1 To: Bart Van Assche , axboe@kernel.dk, kent.overstreet@gmail.com, snitzer@redhat.com, linux-block@vger.kernel.org Cc: linux-scsi@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, sachinp@linux.vnet.ibm.com, Linuxppc-dev Subject: Re: Fwd: [powerpc/Baremetal]Kernel OOPS while executing memory hotplug on Power8 baremetal In-Reply-To: <042fc8ee69b74c57815c0edfdbb253495e9d7718.camel@wdc.com> References: <042fc8ee69b74c57815c0edfdbb253495e9d7718.camel@wdc.com> Message-Id: List-ID: On 2018-06-07 13:12, Bart Van Assche wrote: > On Thu, 2018-06-07 at 12:56 +0530, Venkat Rao B wrote: >> On Thursday 07 June 2018 12:46 PM, Bart Van Assche wrote: >> > On Thu, 2018-06-07 at 12:38 +0530, vrbagal1 wrote: >> > > Observing Kernel oops and machine reboots while executing memory hotplug >> > > test case, on Power8 Baremetal machine. >> > > >> > > I see this is introduced some where between rc6 and 4.17. >> > >> > Please provide the exact versions (git commit IDs) of the kernel versions >> > you have tested. >> >> Commit Id ---> 5037be168f > > The reason I was asking for the commit ID is because I saw that > clone_endio() > occurs in the oops which means that the dm driver is involved. An > important fix > for the dm driver went upstream recently, namely d37753540568 ("dm: Use > kzalloc > for all structs with embedded biosets/mempools"). Can you double check > whether > that commit it present in your tree? If it is not present, please > update to the > latest master and retest. If it is present, please report how to > reproduce > this oops to Kent Overstreet, Jens Axboe, linux-block and Mike Snitzer. > > Thanks, > > Bart. Yes, the fix is present in the tree, which I have tested. Steps to reproduce: Step1: Clone and Install avocado git clone https://github.com/avocado-framework/avocado.git Step2: Clone https://github.com/avocado-framework-tests/avocado-misc-tests.git Test case is https://github.com/avocado-framework-tests/avocado-misc-tests/blob/master/memory/memhotplug.py Step3: Command to run the test is avocado run avocado-misc-tests/memory/memhotplug.py Regards, Venkat.