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bh=40aLBR81Y6/ptVTXtLO+TkgVrZagUte3uf7IRacSj2E=; b=zvsxhw+ulawcIBSCzQf/Mqgi3MYStlm670e/22QncqsS7KGG1Wr87o41sIVtVYKfcni4nb hJtLfueSONiyCAwfvU7gHW4o3WtcsAz8Hti4QePA5Ln3t+bJyedQRy52FlsP7pY/Qr9i5r gVe5UZFJ3ccz8YMyQpIvWND2lYm3OQ8= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1788771057; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=40aLBR81Y6/ptVTXtLO+TkgVrZagUte3uf7IRacSj2E=; b=euXzQlT0zxVj4DilfpW8+BFUXoQ4GMbUzG+Kj0JmGwXds5tZS5nwIy8HJSvUmXjBIs0Qas hZt070lA+Io9laCw== Date: Mon, 7 Sep 2026 10:50:56 +0200 From: Michal =?iso-8859-1?Q?Such=E1nek?= To: Christian Zigotzky Cc: Shrikanth Hegde , Christophe Leroy , linuxppc-dev , kvm-ppc@vger.kernel.org, Madhavan Srinivasan , Peter Zijlstra , "R.T.Dickinson" , hypexed@yahoo.com.au, mad skateman , Christian Zigotzky Subject: Re: [Linux PPC] Disable PREEMPT Message-ID: References: <0B5355D7-4FE4-4B16-8ADE-CBB05A1D6C16@xenosoft.de> <25834fb4-ac52-01f3-11c1-c277af5a4c8d@xenosoft.de> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <25834fb4-ac52-01f3-11c1-c277af5a4c8d@xenosoft.de> X-Spamd-Bar: ++++++++++++ X-Rspamd-Queue-Id: 658C021AF6 X-Rspamd-Action: add header X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spamd-Result: default: False [12.69 / 50.00]; SPAM_FLAG(5.00)[]; NEURAL_SPAM_LONG(3.50)[1.000]; BAYES_HAM(-3.00)[100.00%]; HFILTER_HOSTNAME_UNKNOWN(2.50)[]; RDNS_NONE(2.00)[]; ONCE_RECEIVED(1.20)[]; HFILTER_HELO_IP_A(1.00)[kunlun.suse.cz]; R_MIXED_CHARSET(0.63)[subject]; HFILTER_HELO_NORES_A_OR_MX(0.30)[kunlun.suse.cz]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.13)[-0.648]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; ARC_NA(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVRCPT(0.00)[xtra.co.nz,yahoo.com.au,gmail.com]; FREEMAIL_CC(0.00)[linux.ibm.com,kernel.org,lists.ozlabs.org,vger.kernel.org,infradead.org,xtra.co.nz,yahoo.com.au,gmail.com,xenosoft.de]; SPAMHAUS_XBL(0.00)[2a07:de40:b306:2000::2:from]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCPT_COUNT_SEVEN(0.00)[11]; MISSING_XM_UA(0.00)[]; RCVD_COUNT_ZERO(0.00)[0]; DKIM_TRACE(0.00)[suse.de:+]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:dkim,kunlun.suse.cz:helo,kunlun.suse.cz:mid] X-Spam: Yes On Sat, Sep 05, 2026 at 03:07:40PM +0200, Christian Zigotzky wrote: > On 04/09/26 11:34, Christian Zigotzky wrote: > > > On 04 September 2026 at 11:24 Shrikanth Hegde wrote: > > > > > > can you try with latest code? maybe 7.2? there is usage > > > of generic api to handle the work now which renders the patch shared long back > > > which you tried irrelevant. > > Thanks. I will test the RC1 of kernel 7.3 with PREEMPT enabled. > > > > - Christian > > I compiled and tested the RC1 of kernel 7.3 with PREEMPT support today [1]. > Unfortunately the issue [2] still exists. > > The entire FSL Cyrus+ board freezes when using KVM HV with PREEMPT. > > I will disable PREEMPT with the Kconfig.preempt.patch [3] for the RC2. There is the obvious question which I did not notice answered in this thread: Did you set up sysrq and/or kdump and find out where the kernel is stuck? Thanks Michal