search for: 0u

Now that we can gather diagnostic info, I think I know why our P2Vs kept failing last week. Another one just died right in front of my eyes. I think either the Ethernet or NFS server at this site occasionally "blips" offline when it gets busy and that messes up P2V migrations. The RHEV export domain is an NFS share offered by an old Storagetek NAS, connected over a 10/100 Ethernet.

...> This caused a massive slow down to post-ra scheduler (llc -O3 on x86, -O2 on ARM). I'm going to revert it for now until it has been addressed. > > Probably caused by this member: > > /// KillIndices - The index of the most recent kill (proceding bottom-up), > /// or ~0u if the register is not live. > unsigned KillIndices[TargetRegisterInfo::FirstVirtualRegister]; > > And this: > > std::fill(KillIndices, array_endof(KillIndices), ~0u); > > It should probably be dynamically allocated with TRI->getNumRegs() members instead. Yep. David...

Hi Eli, >>> Icmp sgt is correct. >> >> while ugt would be wrong, I think sgt is too! >> >> For example, suppose %buf is 0 and %bufLen is ~0U. Then %add.ptr is ~0U, and >> %cmp is true, so control branches to %if.then. However in the optimized version >> %cmp is false and control branches to %if.end. >> >> The GEP does have an inbounds attribute, I'm not sure if that is relevant here. > > It is relevan...

...o keyword for cross-thread, but it can be specified as "synchscope(0)". The proposed new integer implementation expanded synchronization scopes are as follows: *Format* *Single Thread* *System (renamed)* *Intermediate* *Bitcode* zero one unsigned n *Assembly* singlethread, synchscope(~0U) empty (default), synchscope(0) synchscope(n-1) *In-memory* ~0U zero unsigned n-1 *SelectionDAG* ~0U zero unsigned n-1 The choice of “~0U” for singlethread makes it easy to maintain backward compatibility in the bitcode. The values 0 and 1 remain unchanged in the bitcode, and the reader simply decr...

hi, mutt -f imap://max at test.local@127.0.0.1 Could not connect to 127.0.0.1 (Connection refused). lsof -i dovecot 20200 root 5u IPv4 233361 TCP localhost:imap2 (LISTEN) imap-logi 20204 dovecot 0u IPv4 233361 TCP localhost:imap2 (LISTEN) imap-logi 20205 dovecot 0u IPv4 233361 TCP localhost:imap2 (LISTEN) imap-logi 20206 dovecot 0u IPv4 233361 TCP localhost:imap2 (LISTEN) dovecot --version 1.0.15 dovecot -n # 1.0.15: /etc/dovecot/dovecot.conf log_path: /var/log...

Hi Chris, > Icmp sgt is correct. while ugt would be wrong, I think sgt is too! For example, suppose %buf is 0 and %bufLen is ~0U. Then %add.ptr is ~0U, and %cmp is true, so control branches to %if.then. However in the optimized version %cmp is false and control branches to %if.end. The GEP does have an inbounds attribute, I'm not sure if that is relevant here. Ciao, Duncan. Note that "ugt x, 0" is the s...

...0000000 locked = 1 ip = { S_un = { S_un_b = { s_b1 = '\200' s_b2 = '\336' s_b3 = '\001' s_b4 = 'J' } S_un_w = { s_w1 = 56960u s_w2 = 18945u } S_addr = 1241636480u # DMB ip address } } port = 137 # The port we're sending this packet to? fd = 4 timestamp = 908574199 packet_type = (NMB_PACKET, (packet_type) 0) packet = { nmb = {...

hi, I compile a case (test.c) to get IR file (test.ll) using clang as follows: "clang -emit-llvm -S -O2 test.c -o test.ll" My clang source code version is release 3.3 and debugging build. //test.c int foo(int j) { return ++j > 0; } int main() { if (foo(((~0U)>>1))) abort(); exit(0) } //end test.c Here are the generated IR file: //test.ll ; Function Attrs: noreturn nounwind uwtable define i32 @main #1 { if.then: tail call void @abort() #3 unreachable } //end test.ll As we can see from test.ll, foo function is optimize...

...s follows: **************************************************************** Format ​ ​ Single Thread ​ ​ System (renamed) ​ ​ Intermediate Bitcode ​ zero ​ one ​ unsigned n Assembly ​ ​ singlethread, ​ ​ empty (default), ​ ​ synchscope(n-1) ​ ​ synchscope(~0U) ​ ​ synchscope(0) In-memory ​ ~0U ​ z ero ​ unsigned n-1 SelectionDAG ​ ~0U ​ ​ zero ​ unsigned n-1 **************************************************************** The choice of “~0U” for singlethread makes it easy to maintain backward com...

On Tue, Aug 2, 2011 at 3:47 AM, Duncan Sands <baldrick at free.fr> wrote: > Hi Chris, > >> Icmp sgt is correct. > > while ugt would be wrong, I think sgt is too! > > For example, suppose %buf is 0 and %bufLen is ~0U.  Then %add.ptr is ~0U, and > %cmp is true, so control branches to %if.then.  However in the optimized version > %cmp is false and control branches to %if.end. > > The GEP does have an inbounds attribute, I'm not sure if that is relevant here. It is relevant: in your proposed scena...

...4.3 on a small home server just dishing up mail, music etc. to the household. I had been doing irregular backups to a 160GB USB external drive /dev/sda1 mounted as /mnt/backup using tar. Then I read somewhere that dump was better so I tried that after clearing the drive (formatted as ext3). dump -0u -f /dev/sda1 /shared took a while to finish but gave no errors however ls showed no files and df -h showed /dev/sda1 to be 4.4T in size and 100% full. I've looked at the man pages but I must be missing something! Regards, John -------------- next part -------------- An HTML attachment was...

ioemu: fix xenfb slow case update Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com> diff -r 067d8f19e78a tools/ioemu/hw/xenfb.c --- a/tools/ioemu/hw/xenfb.c Thu Feb 28 13:55:37 2008 +0000 +++ b/tools/ioemu/hw/xenfb.c Fri Feb 29 15:25:17 2008 +0000 @@ -1072,7 +1072,7 @@ /* A convenient function for munging pixels between different depths */ #define

...hread > ​ ​ > System (renamed) > ​ ​ > Intermediate > Bitcode > ​ > zero > ​ > one > ​ > unsigned n > Assembly > ​ ​ > singlethread, > ​ ​ > empty (default), > ​ ​ > synchscope(n-1) > ​ ​ > synchscope(~0U) > ​ ​ > synchscope(0) > In-memory > ​ > ~0U > ​ z > ero > ​ > unsigned n-1 > SelectionDAG > ​ > ~0U > ​ ​ > zero > ​ > unsigned n-1 > ********************************************************...

...follows: 1. Synchronization scopes are of arbitrary width, but implemented as unsigned in the bitcode, just like address spaces. 2. Cross-thread is default, but now encoded as 0. 3. Keyword 'singlethread' is unchanged, but now encoded as the largest integer (which happens to be ~0U in bitcode). 4. New syntax "synchscope(n)" for other scopes. 5. There is no keyword for cross-thread, but it can be specified as "synchscope(0)". This change breaks forward compatibility for the bitcode, since the meaning of the zero/one values are now changed. enum S...

...caused a massive slow down to post-ra scheduler (llc -O3 on x86, -O2 on ARM). I'm going to revert it for now until it has been addressed. >> Probably caused by this member: >> >> /// KillIndices - The index of the most recent kill (proceding bottom-up), >> /// or ~0u if the register is not live. >> unsigned KillIndices[TargetRegisterInfo::FirstVirtualRegister]; >> >> And this: >> >> std::fill(KillIndices, array_endof(KillIndices), ~0u); >> >> It should probably be dynamically allocated with TRI->getNumRegs() memb...

...SIG_BLOCK, [HUP INT USR1 USR2 ALRM CHLD IO], [], 8) = 0 [pid 16929] writev(3, [{"\232\0\0\0\n\1\0\0\0\0\0\0*\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 64}, {"E\0v\0e\0r\0e\0s\0t\0 \0D\0i\0c\0t\0i\0o\0n\0a\0r\0y\0 \0S\0e\0t\0u\0p\0 \0i\0s\0 \0p\0r\0e\0p\0a\0r\0i\0n\0g\0 \0t\0h\0e\0 \0I\0n\0s\0t\0a\0l\0l\0S\0h\0i\0e\0l\0d\0 \0W\0i\0z\0a\0r\0d\0,\0 \0w\0h\0i\0c\0h\0 \0w\0i\0l\0l\0 \0g\0u\0i\0d\0e\0 \0y\0o\0u\0 \0t\0h\0r\0o\0u\0g\0h\0 \0t\0h\0e\0 \0p\0r\0o\0g\0r\0a\0m\0 \0s\0e\0t\0u\0p\0 \0p\0r\0o\0c\0e\0s\0s\0.\0 \0 \0P\0l...

This caused a massive slow down to post-ra scheduler (llc -O3 on x86, -O2 on ARM). I'm going to revert it for now until it has been addressed. Evan On Dec 7, 2009, at 11:39 AM, Dan Gohman wrote: > > On Dec 7, 2009, at 11:15 AM, Pekka Jääskeläinen wrote: > >> Here's the actual patch, sorry ;) > > Applied in r90789. > > Dan > > >

...AM, Evan Cheng wrote: > This caused a massive slow down to post-ra scheduler (llc -O3 on x86, -O2 on ARM). I'm going to revert it for now until it has been addressed. Probably caused by this member: /// KillIndices - The index of the most recent kill (proceding bottom-up), /// or ~0u if the register is not live. unsigned KillIndices[TargetRegisterInfo::FirstVirtualRegister]; And this: std::fill(KillIndices, array_endof(KillIndices), ~0u); It should probably be dynamically allocated with TRI->getNumRegs() members instead. /jakob

Hi Haishan, > int foo(int j) { > return ++j > 0; > } > int main() { > if (foo(((~0U)>>1))) > abort(); > exit(0) > } This test contains undefined behaviour, and you can never rely on the compiler doing anything predictable with that. Specifically, the result of casting (~0U) >> 1 to an int is almost certainly INT_MAX and when foo increments it inte...

On Aug 2, 2011, at 8:53 AM, Duncan Sands wrote: > Hi Eli, > >>>> Icmp sgt is correct. >>> >>> while ugt would be wrong, I think sgt is too! >>> >>> For example, suppose %buf is 0 and %bufLen is ~0U. Then %add.ptr is ~0U, and >>> %cmp is true, so control branches to %if.then. However in the optimized version >>> %cmp is false and control branches to %if.end. >>> >>> The GEP does have an inbounds attribute, I'm not sure if that is relevant here. >&g...