search for: karel

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2011 Jun 24
2
[LLVMdev] Infinite loop in llc on ARMv7 (LLVM HEAD from June 17)
Hello, it looks like I do have infinite loop in llc on linux/armv7 platform somewhere in llvm::SmallVectorImpl. Two backtraces obtained with 10 seconds delay are: 0x0099be14 in llvm::SmallVectorTemplateCommon<llvm::SDNode*>::setEnd (this=0x7ee90b38, P=0x5c06988) at /export/home/karel/vcs/llvm-head/include/llvm/ADT/SmallVector.h:103 103 void setEnd(T *P) { this->EndX = P; } (gdb) where #0 0x0099be14 in llvm::SmallVectorTemplateCommon<llvm::SDNode*>::setEnd (this=0x7ee90b38, P=0x5c06988) at /export/home/karel/vcs/llvm-head/include/llvm/ADT/SmallVector.h:103 #1...
2011 Jun 24
0
[LLVMdev] Infinite loop in llc on ARMv7 (LLVM HEAD from June 17)
On Fri, Jun 24, 2011 at 9:12 AM, Karel Gardas <karel.gardas at centrum.cz> wrote: > Hello, > > it looks like I do have infinite loop in llc on linux/armv7 platform > somewhere in llvm::SmallVectorImpl. Two backtraces obtained with 10 > seconds delay are: > > 0x0099be14 in llvm::SmallVectorTemplateCommon<llv...
2015 Sep 07
2
libvirt, xen PV, qemu-system-i386, root user
On Mon, Sep 07, 2015 at 05:47:39PM +0200, Karel Hendrych wrote: > ... > > changing from: <driver name='file'/> to: <driver name='tap2'/> makes > the domain start without QEMU. > > However I see much better performance with QEMU (close to dom0, > tested using simple dd writes) than with tap2 driv...
2015 Sep 12
2
libvirt, xen PV, qemu-system-i386, root user
On Sat, Sep 12, 2015 at 01:35:48AM +0200, Karel Hendrych wrote: > Comparing simple dd bs=1M count=10000 on dom0 vs domU. Qemu driver > is achieving pretty much the same like dom0. > So you're measuring buffered speed. Try measuring non-buffered (iflag=direct or oflag=direct, depending if you're reading or writing). -- Pasi &g...
2011 Aug 29
1
[LLVMdev] ARM issue: Trying to add an operand to a machine instr that is already done!
Hi Jim and Eric! thanks a lot for your fantastically fast reply. I'm going to update and will report tomorrow when all the building is done. Thanks! Karel On 08/29/11 11:36 PM, Jim Grosbach wrote: > Hi Karel, > > Mind trying again with current top of tree? Owen's fixed a few things today that were manifesting with that error. > > -Jim > > On Aug 29, 2011, at 2:33 PM, Karel Gardas wrote: > >> Hello, >> >>...
2015 Nov 17
1
[MASSMAIL]Re: samba-tool dns delete
...uld try to replace DC IP address by its FQDN: > samba-tool dns delete <DC_FQDN> dtoe.etecsa.cu _msdcs\010CNF: > 946b89d3-b07b-4f43-a6b9-0de3bf3f3a10.dtoe.etecsa.cu NS * > zdtoe-01.dtoe.etecsa.cu -U administrator > > Cheers, > > mathias > > 2015-11-12 20:20 GMT+01:00 Karel González Herrera <karel.gonzalez at etecsa.cu> > : > >> I need to delete the DNS record and I could not have any idea something >> that is going bad >> >> root at zdtoe-02:~# dig axfr dtoe.etecsa.cu |grep zdtoe-01 >> *_msdcs\010CNF:946b89d3-b07b-4f43-a6b9-0...
2015 Sep 07
2
libvirt, xen PV, qemu-system-i386, root user
Hi, spot on! On 6.9.2015 12:56, Pasi K?rkk?inen wrote: > On Sun, Sep 06, 2015 at 09:08:50AM +0200, Karel Hendrych wrote: >> Hi, after migrating to libvirt/libxl according to: >> > > Hi, > >> https://wiki.centos.org/HowTos/Xen/Xen4QuickStart/Xen4Libvirt >> >> I've noticed that my Xen PV domains are being launched by >> qemu-system-i386 running under root...
2014 Jan 08
4
[LLVMdev] AArch64: GHC compilation issue.
Hi Tim, On 01/ 8/14 10:24 PM, Tim Northover wrote: > Hi Karel, > >> I've observed the same issue with LLVM 3.4 as distributed by Ubuntu 13.10 >> and with LLVM HEAD compiled on January 6. I'm able to provide the byte-code >> file which results in this issue, but would first like to know if this is a >> known issue in AArch64...
2017 Sep 22
13
[Bug 1185] New: counter flag proposal for sets and maps
...sal for sets and maps Product: nftables Version: unspecified Hardware: x86_64 OS: All Status: NEW Severity: enhancement Priority: P5 Component: nft Assignee: pablo at netfilter.org Reporter: karel at unitednetworks.cz Now when we have stateful objects, one can use map to emulate counting of hits in set elements, but counters have to be created first. It would be nice to have "counter" flag for sets and maps with similar function as counters in rules, just to count packets and byt...
2011 Aug 29
3
[LLVMdev] ARM issue: Trying to add an operand to a machine instr that is already done!
Hello, I've compiled today's LLVM on ARM/Linux machine and attempted to use our GHC/ARM port (which is using LLVM as a backend for generating machine code) with it but I've failed in compiling GHC alone as LLVM fails on me with following message: llc: /export/home/karel/vcs/llvm-ghc-arm/lib/CodeGen/MachineInstr.cpp:612: void llvm::MachineInstr::addOperand(const llvm::MachineOperand&): Assertion `(isImpReg || !OperandsComplete()) && "Trying to add an operand to a machine instr that is already done!"' failed. Stack dump: 0. Program argum...
2017 Mar 08
13
[Bug 1127] New: running nft command creates lag for forwarded packets
...ag for forwarded packets Product: nftables Version: unspecified Hardware: x86_64 OS: Gentoo Status: NEW Severity: major Priority: P5 Component: nft Assignee: pablo at netfilter.org Reporter: karel at unitednetworks.cz We have several routers with Gentoo x86-64 kernels 4.9.9 or 4.10.1 with about 150 nftables rules (nftables used are commit da3f503, date 2017-1-03). Hardware used are Xeons or i7-7700K with 10Gbe Intel or Solarflare NICs. There are few sets, maps and flows. Any nft command, be...
2020 Apr 08
5
[Bug 1417] New: mapping to adjacent ranges is causing error in kernel 5.6, kernel 5.5 works fine
...kernel 5.5 works fine Product: nftables Version: unspecified Hardware: x86_64 OS: All Status: NEW Severity: critical Priority: P5 Component: kernel Assignee: pablo at netfilter.org Reporter: karel at unitednetworks.cz Created attachment 588 --> https://bugzilla.netfilter.org/attachment.cgi?id=588&action=edit example of adjacent ranges causing error After upgrading kernel from 5.5 to 5.6.2 our ruleset which includes mapping packet sizes to counters fails to load. Problem is in adja...
2011 Jun 24
2
[LLVMdev] Infinite loop in llc on ARMv7 (LLVM HEAD from June 17)
On 06/24/11 06:53 PM, Eli Friedman wrote: > On Fri, Jun 24, 2011 at 9:12 AM, Karel Gardas<karel.gardas at centrum.cz> wrote: >> My question is if it is a known bug or unknown in which case where to >> report it and if also include compiled *.bc file or not. > > Haven't seen it before... see > http://llvm.org/docs/HowToSubmitABug.html , and please d...
2011 Jun 26
2
[LLVMdev] Recommended GCC version for ARM/Linux platform for LLVM compilation.
...erates thumb by default) and with "-marm -O1" as optimize option I'm on 28 (4.5.2) and 18 (4.4.3) failing testcases. (-marm being better than -mthumb) (also here[2]) So I'm curious what's *the* recommended compiler on this platform which LLVM development is using? Thanks! Karel [1]: http://ghcarm.wordpress.com/2011/06/18/llvm-on-arm/ [2]: https://bugs.launchpad.net/ubuntu/+source/llvm/+bug/513735
2015 Nov 12
2
samba-tool dns delete
...IP address Got challenge flags: Got NTLMSSP neg_flags=0x60898215 Password for [DTOE\administrator]: NTLMSSP: Set final flags: Got NTLMSSP neg_flags=0x60088215 NTLMSSP Sign/Seal - Initialising with flags: Got NTLMSSP neg_flags=0x60088215 ERROR: *Record does not exist* root at zdtoe-02:~# -- Ing. Karel González Herrera Administrador de Red Etecsa: Dirección Territorial Norte e-mail: karel.gonzalez at etecsa.cu Tel: 8344973 8607483 Mov: 52182690
2019 Nov 12
6
[Bug 1382] New: nftables.py cmd leaking memory when ruleset contain mapping ip length to range with high limit 65535
...ge with high limit 65535 Product: nftables Version: unspecified Hardware: x86_64 OS: Gentoo Status: NEW Severity: major Priority: P5 Component: nft Assignee: pablo at netfilter.org Reporter: karel at unitednetworks.cz Created attachment 574 --> https://bugzilla.netfilter.org/attachment.cgi?id=574&action=edit example of nftables.py leaking memory System: Gentoo 5.3.10 x86_64 nft up to date from GIT as of 12.11.2019 Overwiew: nft commands which change ruleset leak memory when ru...
2011 Jun 17
2
[LLVMdev] ARM support status (GHC/ARM new calling convention)
Hello Cameron, thanks a lot for your fast answer, which just makes me curious if making ARM tailcalls on par with x86 in the future is on some of the development plans already? If not, then what do you think is the complexity of such work? Thanks! Karel On 06/17/11 10:41 PM, Cameron Zwarich wrote: > They work pretty well now, at least on Thumb2 / Darwin. It is still fairly conservative about when to use tail calls, and doesn't support GuaranteedTailCallOpt, which might be necessary for GHC. > > Cameron > > On Jun 17, 2011, at 1...
2015 Sep 14
0
libvirt, xen PV, qemu-system-i386, root user
Good test, non-buffered dom0 dd write speed is similar with tap2. I'll likely stay with the QEMU backend. Are there any best practises regarding security, at least if QEMU can operate under non-root account? Cheers -- Karel On 12.9.2015 10:51, Pasi K?rkk?inen wrote: > On Sat, Sep 12, 2015 at 01:35:48AM +0200, Karel Hendrych wrote: >> Comparing simple dd bs=1M count=10000 on dom0 vs domU. Qemu driver >> is achieving pretty much the same like dom0. >> > > So you're measuring buffered spee...
2011 Aug 29
0
[LLVMdev] ARM issue: Trying to add an operand to a machine instr that is already done!
Hi Karel, Mind trying again with current top of tree? Owen's fixed a few things today that were manifesting with that error. -Jim On Aug 29, 2011, at 2:33 PM, Karel Gardas wrote: > Hello, > > I've compiled today's LLVM on ARM/Linux machine and attempted to use our GHC/ARM port (whi...
2017 Sep 21
11
[Bug 1184] New: disable implicit concatenating of elements of sets with flag interval
...with flag interval Product: nftables Version: unspecified Hardware: x86_64 OS: All Status: NEW Severity: enhancement Priority: P5 Component: nft Assignee: pablo at netfilter.org Reporter: karel at unitednetworks.cz If consequent elements are added to set with flag interval in one command, they get concatenated. But when they are added with separate commands, they don't. This is inconsistent behaviour and needs to be fixed. Listing of such sets and keeping them in consistence with ext...