search for: mcip

In current Crossbow''s implementation, vlan tag seems to be unconditionally retained for promisc mode listener even when MAC_OPEN_FLAGS_TAG_DISABLE is not specified. I saw comments in mac_rx_deliver() saying that this is deliberately designed like this. I''m wondering why we design it like this (choose not to respect MAC_OPEN_FLAGS_TAG_DISABLE flag for promisc mode listener)? Or

...ed on a best-effort basis, as >> #MC could happen anytime, also while already executing the #MC handler. > I think the hardware has a MCE-mask bit somewhere. Flaky though because > clearing it isn't 'atomic' with IRET, so there's a 'funny' window. MSR_MCG_STATUS.MCIP, and yes - any #MC before that point will immediately Shutdown.? Any #MC between that point and IRET will clobber its IST stack and end up sad. > It also interacts really bad with the NMI handler. If we get an #MC > early in the NMI, where we hard-rely on the NMI-mask being set to set-up &gt...

Hello Everyone, I recently installed CentOS 5.5 x86_64 on a brand new ProLiant DL380 G7. I have identical OS software running reock-solid on two other DL380 ProLiant servers, but they are G6 models, not G7. On the G7, the installation went perfectly and the machine ran great for about 2 weeks, when it just seemed to "stop". The system stopped responding on the network, and there was

On Tue, Jun 23, 2020 at 03:03:22PM +0200, Peter Zijlstra wrote: > On Tue, Jun 23, 2020 at 02:12:37PM +0200, Joerg Roedel wrote: > > On Tue, Jun 23, 2020 at 01:50:14PM +0200, Peter Zijlstra wrote: > > > If SNP is the sole reason #VC needs to be IST, then I'd strongly urge > > > you to only make it IST if/when you try and make SNP happen, not before. > > >

...is correct. */ + ASSERT( cpu != crashing_cpu ); + + /* Save crash information and shut down CPU. Attempt only once. */ + if ( ! this_cpu(crash_save_done) ) + { + /* Disable the interrupt stack table for the MCE handler. This + * prevents race conditions between clearing MCIP and receving a + * new MCE, during which the exception frame would be clobbered + * and the MCE handler fall into an infinite loop. We are soon + * going to disable the NMI watchdog, so the loop would not be + * caught. + * + * We do not need to chan...