similar to: The entry of Xen's exception handler

Hi there, I ran a test on an Apache server, the workload is a helloworld.c compiled cgi, very simple. OS is SLES 10. The stress tool is ab (apache bench). The performance looks big degration from native to Dom0: Running in prefork mode: Native Dom0 Performance(request/s) 3700 . 650 CPU%

Hi there, I ran a test on an Apache server, the workload is a helloworld.c compiled cgi, very simple. OS is SLES 10. The stress tool is ab (apache bench). The performance looks big degration from native to Dom0: Running in prefork mode: Native Dom0 Performance(request/s) 3700 . 650 CPU%

Hello, This series has been split into two patches, one for arm and one for x86. I figured that this was easier than doing it as a single combined patch, especially as the changes are functionally independent. x86 has been boot tested, but arm has not even been compile tested as I lack a suitable cross compiler. However, the changes are just text replacement, so I dont expect any issues. The

Hi, I have some confusion on local_irq_save() and local_irq_restore(). From the definitions, you can see that local_irq_save() calls local_irq_disable(). But why there is no local_irq_enable() in local_irq_restore? #define local_irq_save(x) ({ local_save_flags(x); local_irq_disable(); }) #define local_irq_restore(x) ({ BUILD_BUG_ON(sizeof(x) != sizeof(long)); asm volatile (

Changes from v1: - Define new struct hvm_trap to represent information of trap, include instruction length. - Renames hvm_inject_exception to hvm_inject_trap. Then define a couple of wrappers around that function for existing callers, so that their parameter lists actually *shrink*. This series of patches fix the mistake for debug exception(#DB), overflow exception(#OF) and INT3(#BP),

This series of patches fix the mistake for debug exception(#DB), overflow exception(#OF) and INT3(#BP), INTn instruction emulation. Introduce new function vmx_inject_sw_exception() which deliver the software excetion, software interrupt and privileged software exception. Split hardware exception as a seperate function(old function vmx_inject_hw_exception()). Also Passed down intruction length

Sorry if this is a repost .. I have edited my query a little bit and my previous post was too long and so was waiting approval(I cancelled it) Ok. Another question.. I have installed the Search ::Xapian on my local machine. Now I'm trying to install it on a machine where i dont have root access. So while running configure of the Xapian library I gave the -prefix option and everything installed

I'm using Search::Xapian XS from Debian stable and I'm getting what appears to be an unwrapped C++ exception: terminate called after throwing an instance of 'Xapian::DatabaseModifiedError' Using `eval' from Perl5 doesn't seem effective in catching it. I'm using postlist_begin, postlist_end and ++ to iterate a PositionIterator, and reading XS/*Iterator.xs, I see the

On Mon, Mar 27, 2023 at 11:46:04AM +0000, Eric Wong wrote: > I'm using Search::Xapian XS from Debian stable and I'm getting what > appears to be an unwrapped C++ exception: > > terminate called after throwing an instance of 'Xapian::DatabaseModifiedError' > > Using `eval' from Perl5 doesn't seem effective in catching it. > > I'm using

On Tue, Apr 28, 2020 at 05:16:52PM +0200, Joerg Roedel wrote: > diff --git a/arch/x86/include/asm/sev-es.h b/arch/x86/include/asm/sev-es.h > index b2cbcd40b52e..e1ed963a57ec 100644 > --- a/arch/x86/include/asm/sev-es.h > +++ b/arch/x86/include/asm/sev-es.h > @@ -74,5 +74,6 @@ static inline u64 lower_bits(u64 val, unsigned int bits) > } > > extern void vc_no_ghcb(void);

On Tue, Apr 28, 2020 at 05:16:52PM +0200, Joerg Roedel wrote: > diff --git a/arch/x86/include/asm/sev-es.h b/arch/x86/include/asm/sev-es.h > index b2cbcd40b52e..e1ed963a57ec 100644 > --- a/arch/x86/include/asm/sev-es.h > +++ b/arch/x86/include/asm/sev-es.h > @@ -74,5 +74,6 @@ static inline u64 lower_bits(u64 val, unsigned int bits) > } > > extern void vc_no_ghcb(void);

During our last week of Ferret / aaf usage (also our first week of Ferret / aaf usage), I have received 8 messages stating that our app encountered a Ferret::QueryParser::QueryParseException. For instance: A Ferret::QueryParser::QueryParseException occurred in foo#search: Error occurred in src/q_parser.y:279 - yyerror couldn''t parse query "com -- 404". Error message

Some operating systems access the local APIC TPR very frequently, and we handle that using software-based local APIC virtualization in Xen today. Such virtualization incurs a number of VM exits from the memory-access instructions against the APIC page in the guest. The attached patch enables the TPR shadow feature that provides APIC TPR virtualization in hardware. Our tests indicate it can

I just upgraded my Fedora Core 5 Xen server from 1 gig or memory to 2. When I start the machine it begins to load the Xen kernel and then reboots. I can boot the machine on straight FC5 without Xen. If I put it back to 1 gig of memory Xen will boot fine. I looked in the xend.log and didn''t see anything. I do see some kind of page_fault error on the screen before the server reboots.

On Wed, May 20, 2020 at 09:22:30PM +0200, Borislav Petkov wrote: > On Tue, Apr 28, 2020 at 05:16:52PM +0200, Joerg Roedel wrote: > > diff --git a/arch/x86/include/asm/sev-es.h b/arch/x86/include/asm/sev-es.h > > index b2cbcd40b52e..e1ed963a57ec 100644 > > --- a/arch/x86/include/asm/sev-es.h > > +++ b/arch/x86/include/asm/sev-es.h > > @@ -74,5 +74,6 @@ static inline

On Thu, Jun 04, 2020 at 02:07:49PM +0200, Joerg Roedel wrote: > This are IDT entry points and the names above follow the convention for > them, like e.g. 'page_fault', 'nmi' or 'general_protection'. Should I > still add the verbs or just add a comment explaining what those symbols > are? Hmmkay, I see vc_no_ghcb doing call do_vc_no_ghcb and that's

From: David Vrabel <david.vrabel@citrix.com> In 32 bit guests, if a userspace process has %eax == -ERESTARTSYS (-512) or -ERESTARTNOINTR (-513) when it is interrupted by an event /and/ the process has a pending signal then %eip (and %eax) are corrupted when returning to the main process after handling the signal. The application may then crash with SIGSEGV or a SIGILL or it may have subtly

On Thu, Mar 19, 2020 at 10:13:11AM +0100, Joerg Roedel wrote: > From: Joerg Roedel <jroedel at suse.de> > > Install a page-fault handler to add an identity mapping to addresses > not yet mapped. Also do some checking whether the error code is sane. > > This makes non SEV-ES machines use the exception handling > infrastructure in the pre-decompressions boot code too,

Hello, On my bridge head DC, i can see in kern.log lots of < Out of memory : kill process > I'm using Samba 4.9.6 (11147 objects) on Debian Stretch 64 This DC synchronize from/to 20 others DC in bridge head mode (no mesh) Here is my VM (HyperV 2016) config : - 4 x Vcpu (intel Xeon Silver 4110) - 2 Go Ram - 1 Go swap I'm really not an expert on this

Hi all, Our kernel is 2.6.32-358.14.1.x86_64, recently dozens of them panicked, since it's been OK for a long time and the problem emerged all of a sudden, I'm not sure if an upgrade caused this problem. Here's what I got from backtracing: PID: 8136 TASK: ffff8803341aead0 CPU: 2 COMMAND: "" #0 [ffff880028283610] panic at ffffffff815286b8 #1 [ffff880028283690]