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On Fri, Oct 20, 2017 at 1:26 AM, Ingo Molnar <mingo at kernel.org> wrote: > > * Thomas Garnier <thgarnie at google.com> wrote: > >> Change the assembly code to use only relative references of symbols for the >> kernel to be PIE compatible. >> >> Position Independent Executable (PIE) support will allow to extended the >> KASLR randomization range

On Fri, Oct 20, 2017 at 1:26 AM, Ingo Molnar <mingo at kernel.org> wrote: > > * Thomas Garnier <thgarnie at google.com> wrote: > >> Change the assembly code to use only relative references of symbols for the >> kernel to be PIE compatible. >> >> Position Independent Executable (PIE) support will allow to extended the >> KASLR randomization range

* Thomas Garnier <thgarnie at google.com> wrote: > >> */ > >> - cmpq $.Lentry_SYSCALL_64_after_fastpath_call, (%rsp) > >> + leaq .Lentry_SYSCALL_64_after_fastpath_call(%rip), %r11 > >> + cmpq %r11, (%rsp) > >> jne 1f > > This patch seems to add extra overhead to the syscall fast-path even when PIE is

(OS: Fedora Core 5; dovecot: 1.0 rc7) On a typical UNIX-like OS, the INBOXes are in "/var/spool/mail/" using the user identifier: so user 'fred' has INBOX "/var/spool/mail/fred". We have a well-established different convention which subdivides this, based on the last two digits of the uid: "/var/spool/mail/12/fred" (for fred's uid as something ending

On Wed, Jan 24, 2018 at 06:42:42PM +0800, Wei Wang wrote: > Negotiation of the VIRTIO_BALLOON_F_FREE_PAGE_HINT feature indicates the > support of reporting hints of guest free pages to host via virtio-balloon. > > Host requests the guest to report free pages by sending a new cmd > id to the guest via the free_page_report_cmd_id configuration register. > > When the guest

On Wed, Jan 24, 2018 at 06:42:42PM +0800, Wei Wang wrote: > Negotiation of the VIRTIO_BALLOON_F_FREE_PAGE_HINT feature indicates the > support of reporting hints of guest free pages to host via virtio-balloon. > > Host requests the guest to report free pages by sending a new cmd > id to the guest via the free_page_report_cmd_id configuration register. > > When the guest

.../fred". That is, it > seems to be ignoring the "default_mail_env" setting. > > Have I missed something in the wiki, or is this a bug of some sort? I have looked deeper at my problem (abov). It seems to be a bug in rc7, and probably an "always been there" bug. I sprinked a few "i_info(...)" diagnostics into "deliver.c" where it does 'getenv("MAIL")' and 'getenv("DEFAULT_MAIL_ENV")'. It shows that these are being successfully read from the 'dovecot.conf' file (good). But, crucially, it seems that the...

This patch series is separated from the previous "Virtio-balloon Enhancement" series. The new feature, VIRTIO_BALLOON_F_FREE_PAGE_HINT, implemented by this series enables the virtio-balloon driver to report hints of guest free pages to the host. It can be used to accelerate live migration of VMs. Here is an introduction of this usage: Live migration needs to transfer the VM's