I'm not seeing the problem you are trying to demonstrate. Is there some reason why you believe the timestamp on a file that you changed on September 14th should have a timestamp that is somehow related to the current hardware or software clock?
What is the output from the single command line:
If the output from these three commands are not in non-decreasing timestamp order, then you might have a problem.
Hi folks,
The server time is no tgetiing synched up with the NTP server.
I tried ntpdate -u <ipadress> this is not working. please help out.
regards,
Sag. (7 Replies)
Hello all,
What would be the most convienint and proper way on syncing up the time and date on Solaris 8 servers with an NTP server?
Any help would be appreciated. Thanks (2 Replies)
Ok, I have 4 production systems. There is one NTP server for all four systems. In each system there is one Solaris 10 box that points to that NTP server. All of the other machines in the system point to the Solaris 10 machine to get their time sync.
All four Solaris 10 machines have essentially... (2 Replies)
Hi,
My Linux VMs are running on citrix XEN.Somehow the time drift is too high (going very fast). Even if the correct time configured using date -s command, for every 1 hr it is differing almost 5 - 10 mins.
Tried configuring ntpd (local NTP server) and still it is not synchronized.
Machine... (2 Replies)
I have 2 sol 10 OS boxes in replication and there is a 6 minutes time difference in GMT zone. How I can sync? they are not on public network. (2 Replies)
Hi folks, I have developed a Linux server for my customer. After migrating the server to my customer site, I was trying to sync its time to the NTP time servers at my customer site.
Below is the ntp.conf:
% vi /etc/ntp.conf
# Permit time synchronization with our time source, but do not
# permit... (2 Replies)
I have a VirtualBox w2008r2 Domain Controller running on a Solaris 10 server. I have the time on the Virtual machine set to Default time sync (bios clock) and the Solaris server set to sync to
0 8,20 * * * /usr/sbin/ntpdate tick.usno.navy.mil tock.usno.navy.mil >> /tmp/ntp.log
My problem is... (2 Replies)
I wanted to know which should be the best way to sync time for a linux machine. We have an application server and a database server, both using RHEL 5.8 as the OS. It is important that the time on both these servers match together and also sync with a common time source. As per my knowledge, these... (11 Replies)
Discussion started by: RHCE
11 Replies
LEARN ABOUT CENTOS
bio_alloc_bioset
BIO_ALLOC_BIOSET(9) The Linux VFS BIO_ALLOC_BIOSET(9)NAME
bio_alloc_bioset - allocate a bio for I/O
SYNOPSIS
struct bio * bio_alloc_bioset(gfp_t gfp_mask, int nr_iovecs, struct bio_set * bs);
ARGUMENTS
gfp_mask
the GFP_ mask given to the slab allocator
nr_iovecs
number of iovecs to pre-allocate
bs
the bio_set to allocate from.
DESCRIPTION
If bs is NULL, uses kmalloc to allocate the bio; else the allocation is backed by the bs's mempool.
When bs is not NULL, if __GFP_WAIT is set then bio_alloc will always be able to allocate a bio. This is due to the mempool guarantees. To
make this work, callers must never allocate more than 1 bio at a time from this pool. Callers that need to allocate more than 1 bio must
always submit the previously allocated bio for IO before attempting to allocate a new one. Failure to do so can cause deadlocks under
memory pressure.
Note that when running under generic_make_request (i.e. any block driver), bios are not submitted until after you return - see the code in
generic_make_request that converts recursion into iteration, to prevent stack overflows.
This would normally mean allocating multiple bios under generic_make_request would be susceptible to deadlocks, but we have deadlock
avoidance code that resubmits any blocked bios from a rescuer thread.
However, we do not guarantee forward progress for allocations from other mempools. Doing multiple allocations from the same mempool under
generic_make_request should be avoided - instead, use bio_set's front_pad for per bio allocations.
RETURNS
Pointer to new bio on success, NULL on failure.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 BIO_ALLOC_BIOSET(9)