search for: loop4

dd if=/dev/null of=img5 bs=1 seek=2G dd if=/dev/null of=img6 bs=1 seek=2G mkfs.btrfs -d raid1 -m raid1 img5 img6 losetup /dev/loop4 img5 losetup /dev/loop5 img6 btrfs device scan mount -t btrfs /dev/loop4 dir umount dir losetup -d /dev/loop5 mount -t btrfs -o degraded /dev/loop4 dir umount dir losetup -d /dev/loop4 ioctl: LOOP_CLR_FD: Device or resource busy mkfs.ext3 /dev/loop4 mke2fs 1.39 (29-May-2006) /dev/loop4 is apparentl...

Hi all, One of our Dell servers has failed badly, and one of the domU's has been corrupted in the process. It boots up to a point and then gives me a kernel panic: Loading dm-zero.ko module Loading dm-snapshot.ko module Scanning and configuring dmraid supported devices Scanning logical volumes Reading all physical volumes. This may take a while... No volume groups found Activating

...2G losetup /dev/loop2 img5 losetup /dev/loop3 img6 mkfs.btrfs -d raid1 -m raid1 /dev/loop2 /dev/loop3 btrfs device scan btrfs filesystem show Label: none uuid: d7ba6c4e-04ed-49f5-88cd-8432c948e822 Total devices 2 FS bytes used 28.00KB devid 1 size 2.00GB used 437.50MB path /dev/loop4 devid 2 size 2.00GB used 417.50MB path /dev/loop5 mkdir dir mount -t btrfs /dev/loop2 dir umount dir losetup -d /dev/loop3 mount -t btrfs -o degraded /dev/loop2 dir mount: wrong fs type, bad option, bad superblock on /dev/loop2, missing codepage or other error In some cas...

I had instaled winrar3.51 and I get this errors: fixme:actctx:CreateActCtxW stub! err:rebar:REBAR_AdjustBands Phase 1 failed, x=692, maxx=-4, start=0, end=0 err:rebar:REBAR_AdjustBands Phase 1 failed, x=692, maxx=-4, start=0, end=0 err:rebar:REBAR_AdjustBands Phase 1 failed, x=40, maxx=-4, start=1, end=1 err:rebar:REBAR_AdjustBands Phase 1 failed, x=692, maxx=-4, start=0, end=0

Just wondering what could cause the following errors: rsync: read errors mapping "/sys/block/loop4/dev": No data available (61) rsync: send_files failed to open "/sys/bus/pci/drivers/Promise_Old_IDE/new_id": Permission denied (13) ERROR: sys/block/ram2/stat failed verification -- update retained. rsync: read errors mapping "/sys/block/ram2/stat": No data available (61)...

...is currently attached to a loopback device. I wouldn''t have thought this a problem, provided that the loop device itself wasn''t in use, but it causes all sorts of strange things to happen. My loop device was mounted with the following command ''losetup --offset 32256 /dev/loop4 /dev/vg00/virt-domu_name-0'', which allows me to mount the filesystem with ntfs-3g (32256 is the offset of the partition in the disk image). The symptoms were that windows would BSoD shortly after login, chkdsk always reported errors (as done under the recovery console) and changes made in...

...%19 = phi i64 [ %17, %L4 ], [ %4, %L2 ] br label %L3 L6: ; preds = %L4 ret void } L3 is the inner loop with constant trip count 4. When calling the loop vectorizer, opt -loop-vectorize -debug-only=loop-vectorize -vectorizer-min-trip-count 4 loop4.ll -S LV: Checking a loop in "main" LV: Found a loop: L3 LV: Found an induction variable. LV: We need to do 0 pointer comparisons. LV: We don't need a runtime memory check. LV: We can vectorize this loop! LV: Found trip count: 4 LV: The Widest type: 32 bits. LV: The Widest register i...

...itranslate=1,permissive=1''] <= same crash #pci = [''02:10.0,permissive=1''] <= same crash pci = [''02:10.0'', ''02:10.1''] vif = [''bridge=xenbr1'',''bridge=xenbr2''] disk = [''phy:/dev/loop4,xvda1,w'', ''phy:/dev/loop5,xvda2,w'', ''phy:/dev/loop6,xvda3,w''] root = "/dev/xvda1 ro rootfstype=ext4 iommu=soft xen-pcifront.verbose_request=1" DomU crash log: [ 71.124852] pcifront pci-0: write dev=0000:00:00.0 - offset 72 size 2 val c...

...%L3 > > L6: ; preds = %L4 > ret void > } > > > L3 is the inner loop with constant trip count 4. > > When calling the loop vectorizer, > > opt -loop-vectorize -debug-only=loop-vectorize -vectorizer-min-trip-count 4 loop4.ll -S > > LV: > Checking a loop in "main" > LV: Found a loop: L3 > LV: Found an induction variable. > LV: We need to do 0 pointer comparisons. > LV: We don't need a runtime memory check. > LV: We can vectorize this loop! > LV: Found trip count: 4 > LV: T...

...; preds = %L4 >> ret void >> } >> >> >> L3 is the inner loop with constant trip count 4. >> >> When calling the loop vectorizer, >> >> opt -loop-vectorize -debug-only=loop-vectorize -vectorizer-min-trip-count 4 loop4.ll -S >> >> LV: >> Checking a loop in "main" >> LV: Found a loop: L3 >> LV: Found an induction variable. >> LV: We need to do 0 pointer comparisons. >> LV: We don't need a runtime memory check. >> LV: We can vectorize this loop! >>...

Hi! I recently tried to mount a filesystem in RAID1 mode using loopback devices. I followed the instructions at [1]. Here''s exactly what I''ve done: $ dd if=/dev/zero of=raid1_0.img bs=1M count=500 $ dd if=/dev/zero of=raid1_1.img bs=1M count=500 $ mkfs.btrfs -m raid1 -d raid1 raid1_0.img raid1_1.img $ losetup /dev/loop0 raid1_0.img $ losetup /dev/loop1 raid1_1.img $ mount -t

...s = %L4 >>> ret void >>> } >>> >>> >>> L3 is the inner loop with constant trip count 4. >>> >>> When calling the loop vectorizer, >>> >>> opt -loop-vectorize -debug-only=loop-vectorize -vectorizer-min-trip-count 4 loop4.ll -S >>> >>> LV: >>> Checking a loop in "main" >>> LV: Found a loop: L3 >>> LV: Found an induction variable. >>> LV: We need to do 0 pointer comparisons. >>> LV: We don't need a runtime memory check. >>> LV: We...

... 424 S  0.0  0.4   0:00.00 getty  1070 root      16   0  1500  484  424 S  0.0  0.4   0:00.01 getty  1092 root      18   0  3396  832  652 S  0.0  0.7   0:00.01 xfrd  1093 root      16   0 12084 9840 2372 S  0.0  7.7   0:23.23 python  8109 root       0 -20     0    0    0 S  0.0  0.0   0:47.15 loop4  8119 root       0 -20     0    0    0 S  0.0  0.0   0:00.00 loop5  4967 root       0 -20     0    0    0 S  0.0  0.0   0:09.47 loop0  4973 root       0 -20     0    0    0 S  0.0  0.0   0:00.00 loop1  1783 root      16   0     0    0    0 S  0.0  0.0   0:00.42 pdflush  2336 root       0 -20  ...

On Wed, Oct 27, 2010 at 1:29 PM, Brian West <bnwest at rice.edu> wrote: > Here is the patch for the new Operator Strength Reduction optimization > pass that I have written.  The bulk of the code is in > > lib/Transforms/Scalar/OperatorStrengthReduce.cpp > > The algorithm finds reduction opportunities in both array accesses and > explicit multiplications within loops.

...If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid E: Ad=81(I) Atr=03(Int.) MxPS= 6 Ivl=100ms ===== what I see in /sys/block ====== # ls /sys/block hda/ loop2/ loop6/ ram1/ ram13/ ram3/ ram7/ sdb/ sdf/ hdb/ loop3/ loop7/ ram10/ ram14/ ram4/ ram8/ sdc/ loop0/ loop4/ md0/ ram11/ ram15/ ram5/ ram9/ sdd/ loop1/ loop5/ ram0/ ram12/ ram2/ ram6/ sda/ sde/ ===== What udevadm (udevinfo) sees ===== # udevadm info -a -p /sys/devices/pci0000:00/0000:00:1d.2 /usb4/4-2 Udevinfo starts with the device specified by the devpath and then walks up the cha...

...d???????? tty15? tty27? tty39? tty50? tty62 ttyUSB4???????? usbdev3.1_ep00? vcsa cdrw????????? dvdwriter????? fd0u1840? hda2??????? loop3??? null ram0????? ram7???? stderr????? tty16? tty28? tty4?? tty51? tty63 ttyUSB5???????? usbdev3.1_ep81? vcsa1 cdrw-hdb????? dvdwriter-hdb? fd0u1920? hda3??????? loop4??? nvram ram1????? ram8???? stdin?????? tty17? tty29? tty40? tty52? tty7 urandom???????? usbdev4.1_ep00? vcsa2 cdwriter????? fb???????????? fd0u360?? hda4??????? loop5??? oldmem ram10???? ram9???? stdout????? tty18? tty3?? tty41? tty53? tty8 usbdev1.1_ep00? usbdev4.1_ep81? vcsa3 cdwriter-hdb? fb0??...

Here is the patch for the new Operator Strength Reduction optimization pass that I have written. The bulk of the code is in lib/Transforms/Scalar/OperatorStrengthReduce.cpp The optimization is based on the algorithm described within the paper that can be found here: http://portal.acm.org/citation.cfm?id=504709.504710 Keith D. Cooper , L. Taylor Simpson , Christopher A. Vick, Operator strength

Guys! Tomorrow in my "live" presentation at Linuxcon Xen Directions! I''ll show the Xen Live CD to the public! To celebrate! I want to share my last procedure to get and run Xen 4.0.1 on Ubuntu 10.04 64 bits, here we go: The procedure: 1- Install all the packages: aptitude update aptitude install bridge-utils build-essential libncurses5-dev dpkg-dev debhelper

...ration > with LLVM could comment on whether -loop-reduce is useful, and whether > the performance is an issue.) -loop-reduce (LSR) only looks at implicit multiplication in array accesses. The following code has an explicit multiplication within a loop that LSR will not reduce: extern float loop4(float* a, int start, int stop) { int i; float sum; float *pEntry; char *p; unsigned long offset; const unsigned int float_size = sizeof(float); sum = 0.0; p = (char*)a; for (i=start-1; i<stop; ++i) { offset = i * float_size; pEntry = (float*) (p + offset); sum += *pEntry; } return sum; } OSR...

...brw-r----- 1 root disk 7, 0 Mar 2 18:06 loop0 brw-r----- 1 root disk 7, 1 Mar 2 18:06 loop1 brw-r----- 1 root disk 7, 2 Mar 2 18:06 loop2 brw-r----- 1 root disk 7, 3 Mar 2 18:06 loop3 brw-r----- 1 root disk 7, 4 Mar 2 18:06 loop4 brw-r----- 1 root disk 7, 5 Mar 2 18:06 loop5 brw-r----- 1 root disk 7, 6 Mar 2 18:06 loop6 brw-r----- 1 root disk 7, 7 Mar 2 18:06 loop7 lrwxrwxrwx 1 root root 13 Mar 2 18:06 MAKEDEV -> /sbin/MAKEDEV drwxr-xr-x 2 root root...