search for: nr_activities

This patch should fix the bug reported in https://lkml.org/lkml/2014/9/11/249. Test is still pending. David Hildenbrand (1): blk-mq: Avoid race condition with uninitialized requests block/blk-mq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) -- 1.8.5.5

This patch should fix the bug reported in https://lkml.org/lkml/2014/9/11/249. Test is still pending. David Hildenbrand (1): blk-mq: Avoid race condition with uninitialized requests block/blk-mq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) -- 1.8.5.5

.../* Mean time elapsed (ns). */ + double variance; /* Variance. */ + double sd; /* Standard deviation. */ + double percent; /* Percent of total elapsed time. */ + + double end_t; /* t + mean - 1 */ +}; + +static size_t nr_activities; +static struct activity *activities; + +static void run_test (void); +static void get_time (struct timespec *ts); +static int64_t timespec_diff (const struct timespec *x, const struct timespec *y); +static struct event *add_event (struct pass_data *, uint64_t source); +static guestfs_h *create_han...

v4: - Lots more analysis of the /init script and other parts. - Display a list of the longest to shortest activities. - Rebase on top of current head. Rich.

This patch should fix the bug reported in https://lkml.org/lkml/2014/9/11/249. We have to initialize at least the atomic_flags and the cmd_flags when allocating storage for the requests. Otherwise blk_mq_timeout_check() might dereference uninitialized pointers when racing with the creation of a request. Also move the reset of cmd_flags for the initializing code to the point where a request is

On 09/18/2014 11:04 AM, David Hildenbrand wrote: > This patch should fix the bug reported in https://lkml.org/lkml/2014/9/11/249. > > We have to initialize at least the atomic_flags and the cmd_flags when > allocating storage for the requests. > > Otherwise blk_mq_timeout_check() might dereference uninitialized pointers when > racing with the creation of a request. >

On 09/18/2014 11:04 AM, David Hildenbrand wrote: > This patch should fix the bug reported in https://lkml.org/lkml/2014/9/11/249. > > We have to initialize at least the atomic_flags and the cmd_flags when > allocating storage for the requests. > > Otherwise blk_mq_timeout_check() might dereference uninitialized pointers when > racing with the creation of a request. >

Lots of changes since v2, too much to remember or summarize. Please ignore patch 11/11, it's just for my testing. Rich.

v1 was here: https://www.redhat.com/archives/libguestfs/2016-March/thread.html#00157 Not running the 'hwclock' command reduces boot times considerably. However I'm not sure if it is safe. See the question I posted on qemu-devel: http://thread.gmane.org/gmane.comp.emulators.qemu/402194 At the moment, about 50% of the time is consumed by SeaBIOS. Of this, about ⅓rd is SGABIOS

On 11/21/2017 11:12 AM, Christian Borntraeger wrote: > > > On 11/21/2017 07:09 PM, Jens Axboe wrote: >> On 11/21/2017 10:27 AM, Jens Axboe wrote: >>> On 11/21/2017 03:14 AM, Christian Borntraeger wrote: >>>> Bisect points to >>>> >>>> 1b5a7455d345b223d3a4658a9e5fce985b7998c1 is the first bad commit >>>> commit

On 11/21/2017 11:12 AM, Christian Borntraeger wrote: > > > On 11/21/2017 07:09 PM, Jens Axboe wrote: >> On 11/21/2017 10:27 AM, Jens Axboe wrote: >>> On 11/21/2017 03:14 AM, Christian Borntraeger wrote: >>>> Bisect points to >>>> >>>> 1b5a7455d345b223d3a4658a9e5fce985b7998c1 is the first bad commit >>>> commit

On 11/21/2017 11:27 AM, Jens Axboe wrote: > On 11/21/2017 11:12 AM, Christian Borntraeger wrote: >> >> >> On 11/21/2017 07:09 PM, Jens Axboe wrote: >>> On 11/21/2017 10:27 AM, Jens Axboe wrote: >>>> On 11/21/2017 03:14 AM, Christian Borntraeger wrote: >>>>> Bisect points to >>>>> >>>>>

On 11/21/2017 07:39 PM, Jens Axboe wrote: > On 11/21/2017 11:27 AM, Jens Axboe wrote: >> On 11/21/2017 11:12 AM, Christian Borntraeger wrote: >>> >>> >>> On 11/21/2017 07:09 PM, Jens Axboe wrote: >>>> On 11/21/2017 10:27 AM, Jens Axboe wrote: >>>>> On 11/21/2017 03:14 AM, Christian Borntraeger wrote: >>>>>> Bisect

On 11/21/2017 07:39 PM, Jens Axboe wrote: > On 11/21/2017 11:27 AM, Jens Axboe wrote: >> On 11/21/2017 11:12 AM, Christian Borntraeger wrote: >>> >>> >>> On 11/21/2017 07:09 PM, Jens Axboe wrote: >>>> On 11/21/2017 10:27 AM, Jens Axboe wrote: >>>>> On 11/21/2017 03:14 AM, Christian Borntraeger wrote: >>>>>> Bisect

From: Martin Schwidefsky <schwidefsky@de.ibm.com> From: Hubertus Franke <frankeh@watson.ibm.com> From: Himanshu Raj <rhim@cc.gatech.edu> [patch 3/9] Guest page hinting: volatile page cache. A new page state "volatile" is introduced that is used for clean, uptodate page cache pages. The host can choose to discard volatile pages as part of its vmscan operation instead

From: Martin Schwidefsky <schwidefsky@de.ibm.com> From: Hubertus Franke <frankeh@watson.ibm.com> From: Himanshu Raj <rhim@cc.gatech.edu> [patch 3/9] Guest page hinting: volatile page cache. A new page state "volatile" is introduced that is used for clean, uptodate page cache pages. The host can choose to discard volatile pages as part of its vmscan operation instead

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.

After way to many months here is the fifth version of the guest page hinting patches. Compared to version four a few improvements have been added: - Avoid page_host_discards() calls outside of page-states.h - The discard list is now implemented via the page_free_discarded hook and architecture specific code. - PG_state_change page flag has been replaced with architecture specficic

After way to many months here is the fifth version of the guest page hinting patches. Compared to version four a few improvements have been added: - Avoid page_host_discards() calls outside of page-states.h - The discard list is now implemented via the page_free_discarded hook and architecture specific code. - PG_state_change page flag has been replaced with architecture specficic