similar to: 6.2 x86_64 "mtrr_cleanup: can not find optimal value"

After fresh installation of CentOS 6.2 on my server, I get following errors in my dmesg output: ------- MTRR default type: uncachable MTRR fixed ranges enabled: 00000-9FFFF write-back A0000-BFFFF uncachable C0000-D7FFF write-protect D8000-E7FFF uncachable E8000-FFFFF write-protect MTRR variable ranges enabled: 0 base 000000000 mask C00000000 write-back 1 base 400000000 mask

Good Day All, Today I looked at the dmesg log and I notice that the following messages regarding mtrr_gran_size/mtrr_chunk_size. I am currently running CentOS 6.3 and I installed CentOS 6.2 and 6.1 and I was seeing the same errors. When I installed CentOS 5.8 on the same laptop I do not see these errors. $ lsb_release -a LSB Version:

CentOS 6.4, current, Dell PE R720. Had an issue today with a bus error, and googling only found two year old references to problems with non-Dell drives (we just added two WD Reds, and mdadm raided them). So, looking through dmesg and /var/log/messages, I ran into a *lot* of G gran_size: 128K chunk_size: 256K num_reg: 10 lose cover RAM: 0G gran_size: 128K chunk_size:

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Dear R forum, Please refer to my query regarding "Error with function". I forgot to mention that I am using "plyr" library. Sorry for inconvenience. Regards Katherine --- On Tue, 23/4/13, Katherine Gobin <katherine_gobin@yahoo.com> wrote: From: Katherine Gobin <katherine_gobin@yahoo.com> Subject: [R] Error with function To: r-help@r-project.org Date:

Dear R forum, I have a data.frame as given below: df = data.frame(tran = c("tran1", "tran2", "tran3", "tran4"), tenor = c("2w", "1m", "7m", "3m"))  Also, I define libor_tenor_labels = as.character(c("o_n", "1w", "2w", "1m", "2m", "3m", "4m",

Dear R forum Please refer to my query captioned Error with function. I had missed in bracket ")" in the return statement and hence I was getting the error. I has struggled for more than 2 hours to find out the problem and only then has posted to the forum. I sincerely apologize to all for consuming your valuable time. Thanks for the efforts at your end. Regards Katherine --- On

When a whole-file checksum is performed, hashing was done in 64 byte blocks, causing overhead and limiting performance. Testing showed the performance improvement to go up quickly going from 64 to 512 bytes, with diminishing returns above, 4096 was where it seemed to plateau for me. Re-used CHUNK_SIZE (32 kB) as it already exists and should be fine to use here anyway. Noticed this because

$./mkfs.btrfs -f /dev/sdd -b 2M [...] mkfs.btrfs: volumes.c:845: btrfs_alloc_chunk: Assertion `!(ret)'' failed. Aborted (core dumped). We should return error to userspace instead of the above. Signed-off-by: Liu Bo <bo.li.liu@oracle.com> --- mkfs.c | 23 +++++++++++++++-------- volumes.c | 16 +++++++++++----- 2 files changed, 26 insertions(+), 13 deletions(-) diff --git

Does anybody please have any experience with the following CentOS 6 warnings in logwatch? WARNING: Kernel Errors Present ACPI Error (psargs-0359): [ ...: 1 Time(s) pci 0000:00:01.0: PCIe errors handled by OS. ...: 1 Time(s) pci 0000:00:1c.0: PCIe errors handled by OS. ...: 1 Time(s) pci 0000:00:1c.5: PCIe errors handled by OS. ...: 1 Time(s) pci 0000:00:1c.6: PCIe errors

Hy Timo ! I Made some modification in stream_read in zlib. I remove all zlib part, because i don't need this, but i need to read a istream to change it. Well, i create a size_t called supersize, with is a substitute for stream->zs.avail_in. The trouble is, my debug file have a lot of "READ Plugin\n", and i think it's because my read becomes a loop, i think it's because

From: Halil Pasic <pasic at linux.ibm.com> To support protected virtualization cio will need to make sure the memory used for communication with the hypervisor is DMA memory. Let us introduce one global cio, and some tools for pools seated at individual devices. Our DMA pools are implemented as a gen_pool backed with DMA pages. The idea is to avoid each allocation effectively wasting a

From: Halil Pasic <pasic at linux.ibm.com> To support protected virtualization cio will need to make sure the memory used for communication with the hypervisor is DMA memory. Let us introduce one global pool for cio. Our DMA pools are implemented as a gen_pool backed with DMA pages. The idea is to avoid each allocation effectively wasting a page, as we typically allocate much less than

On Fri, 10 May 2019 16:10:13 +0200 Cornelia Huck <cohuck at redhat.com> wrote: > On Fri, 10 May 2019 00:11:12 +0200 > Halil Pasic <pasic at linux.ibm.com> wrote: > > > On Thu, 9 May 2019 12:11:06 +0200 > > Cornelia Huck <cohuck at redhat.com> wrote: > > > > > On Wed, 8 May 2019 23:22:10 +0200 > > > Halil Pasic <pasic at

To support protected virtualization cio will need to make sure the memory used for communication with the hypervisor is DMA memory. Let us introduce one global pool for cio. Our DMA pools are implemented as a gen_pool backed with DMA pages. The idea is to avoid each allocation effectively wasting a page, as we typically allocate much less than PAGE_SIZE. Signed-off-by: Halil Pasic <pasic at

To support protected virtualization cio will need to make sure the memory used for communication with the hypervisor is DMA memory. Let us introduce one global pool for cio. Our DMA pools are implemented as a gen_pool backed with DMA pages. The idea is to avoid each allocation effectively wasting a page, as we typically allocate much less than PAGE_SIZE. Signed-off-by: Halil Pasic <pasic at

On Wed, Aug 19, 2020 at 03:07:04PM +0100, Robin Murphy wrote: >> FWIW, I asked back in time what the plan is for non-coherent >> allocations and it seemed like DMA_ATTR_NON_CONSISTENT and >> dma_sync_*() was supposed to be the right thing to go with. [2] The >> same thread also explains why dma_alloc_pages() isn't suitable for the >> users of dma_alloc_attrs() and

Currently rsync has a bit of a problem with very large files. Dynamic block sizes were introduced to try handle that automatically if the user didn't specify a block size. Unfortunately that isn't enough and the block size would need to grow faster than the file. Besides, overly large block sizes mean large amounts of data need to be copied even for small changes. The maths indicate