search for: erasing

Displaying 20 results from an estimated 2070 matches for "erasing".

2017 Mar 22
1
KVM guest fails to boot cleanly
I have a KVM vm running CentOS-6.8 on a host also running CentOS-6.8. This instance is used for occasional development projects which require segregation. Thus it is seldom accessed. At some point in the recent past this guest developed an issue with starting. Specifically these messages were found in the system log files: /var/log/messages-20170312:Mar 10 16:31:06 vhost04 kernel: dracut:
2008 May 23
3
[LLVMdev] Iterator issue in BranchFolder::RemoveBlocksWithHash?
Hi all, I updated from 2.2 to the latest SVN head and I now get a debug assert in BranchFolder::RemoveBlocksWithHash: "vector iterators incompatible". I'm using Visual C++ 2005. I think this is the culprit code: MergePotentials.erase(CurMPIter); if (CurMPIter==B) break; The erase clears the _Mycont field (i.e. the iterator's container), while the ==
2020 Sep 14
6
erasing a disk
Folks I've encountered situations where I want to reuse a hard-drive. I do not want to preserve anything on the drive, and I'm not concerned about 'securely erasing' old content. I just want to be able to define it as an Physical Volume (in a logical volume set), or make it a ZFS disk, or sometimes make it a simple EXT3, ExFAT or NTFS disk. However, old 'signatures' get in the way and Linux sometimes refuses to let me proceed. I know that a...
2008 May 23
0
[LLVMdev] Iterator issue in BranchFolder::RemoveBlocksWithHash?
On May 23, 2008, at 4:10 AM, Nicolas Capens wrote: > Hi all, > > I updated from 2.2 to the latest SVN head and I now get a debug > assert in BranchFolder::RemoveBlocksWithHash: “vector iterators > incompatible”. I’m using Visual C++ 2005. I think this is the > culprit code: > > MergePotentials.erase(CurMPIter); > if (CurMPIter==B) > break; >
2016 Feb 08
7
Utility to zero unused blocks on disk
DBAN is obsolete. NIST 800-88 for some time now says to use secure erase or enhanced security erase or crypto erase if supported. Other options do not erase data in remapped sectors. Chris Murphy
2014 Jul 15
2
[LLVMdev] Bug in MapVector::erase ?
Hi Oliver, There would be no problem if both the Map and the Vector indeed contained (Key,Value) pairs. To save space, Map entries do not contain Value but instead an unsigned index into the Vector: /// The values are kept in a std::vector and the /// mapping is done with DenseMap from Keys to indexes in that vector. After an element is erased from the Vector all indices greater than the
2014 Jul 15
2
[LLVMdev] [cfe-dev] Bug in MapVector::erase ?
...d to use some other container) > > Making erase linear time sounds... not ideal, but possibly its > sufficient for some/current use cases. Or we could consider other > solutions to the use cases. Heh -- it's already linear. It erases from the middle of a vector. At the least, if erasing is kept (and fixed), someone needs to update the docs and add a unit test. One way of speeding this up would be to erase a set of values in bulk. I think we could easily add a `remove_if()` function that deleted a set of matching items in linear time, using a linear-size auxiliary array of indice...
2008 May 27
2
[LLVMdev] Iterator issue in BranchFolder::RemoveBlocksWithHash?
On May 23, 2008, at 10:19 AM, Dale Johannesen wrote: > On May 23, 2008, at 4:10 AM, Nicolas Capens wrote: > >> I updated from 2.2 to the latest SVN head and I now get a debug >> assert in BranchFolder::RemoveBlocksWithHash: “vector iterators >> incompatible”. I’m using Visual C++ 2005. I think this is the >> culprit code: >> >>
2008 May 27
2
[LLVMdev] Iterator issue in BranchFolder::RemoveBlocksWithHash?
On May 27, 2008, at 2:01 PM, Dale Johannesen wrote: > On May 27, 2008, at 1:40 PM, Mike Stump wrote: >> >> From n2461: >> >>> 8 The insert members shall not affect the validity of iterators and >>> references to the container, and the erase members shall invalidate >>> only iterators and references to the erased elements. >> >> Pretty
2008 Sep 24
3
Changing a plot
Hello list, I've been working on this problem for a while and I haven't been able to come up with a solution. I have a couple of functions that plot a bunch of data, then a single point on top of it. What I want is to be able to change the plot of the point without replotting all the data. Consider the following example: x = rnorm(100,1,0.5) y = rnorm(100,1,0.5) plot(x,y,pch=16)
2002 Aug 06
1
polygon() draws non-transparent border, erase.screen draws non-transparent border (PR#1881)
...ar(old)) par(new = TRUE) plot.new() # bug in polygon, ignores border="transparent" # was: polygon(c(0, 1, 1, 0), c(0, 0, 1, 1), border=NA, col = 0) rect(0, 0, 1, 1, col=0, border=0) par(new = TRUE) invisible() } as borders are overlapping between subscreens, erasing one subscreen will set parts of borders of neighbor subscreens to background color. I guess this is better than not beeing able to erase the borders at all. However, if border shall not be erased have rect(0, 0, 1, 1, col=0, border="tranparent") instead. Alternatively we could introduc...
2012 May 22
3
SSD erase state and reducing SSD wear
I''ve got two recent examples of SSDs. Their pristine state from the manufacturer shows: Device Model: OCZ-VERTEX3 # hexdump -C /dev/sdd 00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 1bf2976000 Device Model: OCZ VERTEX PLUS (OCZ VERTEX 2E) # hexdump -C /dev/sdd 00000000 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................| *
2014 Jul 15
2
[LLVMdev] [cfe-dev] Bug in MapVector::erase ?
...se linear time sounds... not ideal, but possibly its >>> sufficient for some/current use cases. Or we could consider other >>> solutions to the use cases. >> >> Heh -- it's already linear. It erases from the middle of a vector. >> >> At the least, if erasing is kept (and fixed), someone needs to update the >> docs and add a unit test. >> >> One way of speeding this up would be to erase a set of values in bulk. I >> think we could easily add a `remove_if()` function that deleted a set of >> matching items in linear time,...
2014 Jul 15
3
[LLVMdev] [cfe-dev] Bug in MapVector::erase ?
> On 2014-Jul-15, at 11:07, Reid Kleckner <rnk at google.com> wrote: > > Can we explicitly delete the erase method or do something else to document the fact that it is unsupported? It was added incidentally in r211350, even though it was added and removed by Doug back in r175538 / r175449. > I'm happy with it deleted or fixed (see WIP patch that fixes it w/o tests). For
2020 Sep 14
0
erasing a disk
At Mon, 14 Sep 2020 13:14:44 -0700 CentOS mailing list <centos at centos.org> wrote: > > Folks > > I've encountered situations where I want to reuse a hard-drive. I do > not want to preserve anything on the drive, and I'm not concerned > about 'securely erasing' old content. I just want to be able to > define it as an Physical Volume (in a logical volume set), or make it > a ZFS disk, or sometimes make it a simple EXT3, ExFAT or NTFS > disk. However, old 'signatures' get in the way and Linux sometimes > refuses to let me proc...
2020 Sep 14
0
erasing a disk
...essmer answered faster than me) On Mon, Sep 14, 2020 at 3:18 PM david <david at daku.org> wrote: > Folks > > I've encountered situations where I want to reuse a hard-drive. I do > not want to preserve anything on the drive, and I'm not concerned > about 'securely erasing' old content. I just want to be able to > define it as an Physical Volume (in a logical volume set), or make it > a ZFS disk, or sometimes make it a simple EXT3, ExFAT or NTFS > disk. However, old 'signatures' get in the way and Linux sometimes > refuses to let me proceed....
2016 Feb 09
4
Utility to zero unused blocks on disk
On Mon, Feb 8, 2016 at 3:18 PM, <m.roth at 5-cent.us> wrote: > Chris Murphy wrote: >> DBAN is obsolete. NIST 800-88 for some time now says to use secure erase >> or enhanced security erase or crypto erase if supported. >> >> Other options do not erase data in remapped sectors. > > dban doesn't? What F/OSS does "secure erase"? And does it do
2015 Apr 01
2
[LLVMdev] Why the fault?
...if I iterate forwards if (isInstructionTriviallyDead(&inst, TLI)) inst.eraseFromParent(); } Sorry for the inexperienced question, but I'm confused why this works when using a forward iterator, but fails in reverse. The iterator is moved off the current instruction so why would erasing the current instruction cause an error? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20150401/1430f2a1/attachment.html>
2004 Oct 12
5
[LLVMdev] set_intersect and Visual C compiler
On Tue, 12 Oct 2004 14:01:21 -0500 (CDT) Chris Lattner <sabre at nondot.org> wrote: > On Tue, 12 Oct 2004, Morten Ofstad wrote: > > > This is my first post on this mailing list, so bear with me... My name > > is Morten Ofstad and I work for Hue AS (www.hue.no), a company that > > makes 3D Visualization software. We are looking into using LLVM for JIT > >
2012 Feb 08
2
[PATCH v3 0/2] Add a new api wipefs
Hi Rich: This is a alternative patch, if you like the api name called wipefs ;-P Thanks -Wanlong Gao Wanlong Gao (2): NEW API: add a new api wipefs virt-format: erase the filesystem signatures before erase partitions TODO | 2 -- daemon/zero.c | 17 +++++++++++++++++ format/format.c | 19 ++++---------------