Closed. This question is not about programming or software development. It is not currently accepting answers.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
Closed 17 days ago.
Improve this question
I have a file on /tmp
-rw-r--r-- 1 root root 6782 Jun 30 11:20 DATA_00.csv
when I copy it to SD Card with
cp /tmp/DATA_00.csv /mnt/mmccard/
Its Execute flag is set !
-rwxr-xr-x 1 root root 6782 Jun 30 11:21 DATA_00.csv
Is it normal ?
on Linux 2.6.20 ;)
#koyaanisqatsi
Hi, I don't have new information with fdisk -l
In fact I don't know why there is not only one partition.
/mnt/mmccard type vfat (rw,sync,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1)
Disk /dev/mmcblk0p1: 8064 MB, 8064598016 bytes
4 heads, 16 sectors/track, 246112 cylinders
Units = cylinders of 64 * 512 = 32768 bytes
Device Boot Start End Blocks Id System
/dev/mmcblk0p1p1 ? 29216898 55800336 850670010+ 7a Unknown
Partition 1 does not end on cylinder boundary.
/dev/mmcblk0p1p2 ? 25540106 55528404 959625529 72 Unknown
Partition 2 does not end on cylinder boundary.
/dev/mmcblk0p1p3 ? 1 1 0 0 Empty
Partition 3 does not end on cylinder boundary.
/dev/mmcblk0p1p4 438273 438279 221 0 Empty
Partition 4 does not end on cylinder boundary.
This was formatted with w10 as FAT32
Hello
Yes - Depending on the filesystem the SD Card has. I guess somewhat
like MS FAT16/FAT32?
Check out the command mount without any option/parameter.
Related
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
Closed 1 year ago.
Improve this question
**EventID 41
Version 8
Level 1
Task 63
Opcode 0
Keywords 0x8000400000000002
- TimeCreated
[ SystemTime] 2021-09-26T18:19:37.8668359Z
EventRecordID 1614
Correlation
- Execution
[ ProcessID] 4
[ ThreadID] 8
Channel System
Computer DESKTOP-IJTG7GS
- Security
[ UserID] S-1-5-18
- EventData
BugcheckCode 0
BugcheckParameter1 0x0
BugcheckParameter2 0x0
BugcheckParameter3 0x0
BugcheckParameter4 0x0
SleepInProgress 6
PowerButtonTimestamp 0
BootAppStatus 3221226017
Checkpoint 0
ConnectedStandbyInProgress false
SystemSleepTransitionsToOn 1
CsEntryScenarioInstanceId 0
BugcheckInfoFromEFI false
CheckpointStatus 0
CsEntryScenarioInstanceIdV2 0
LongPowerButtonPressDetected false**
So my computer restarts abruptly on it's own sometimes. I have tested ram and overheating issue but did not find any problem. I even installed windows again but the problem keeps on coming. Above is the event viewer critical error details. Please tell me what is the problem and how should i fix it. I am guessing it might be power supply. Just to be sure, what do you think it is.
My CPU is Intel(R) Xeon(R) CPU E3-1245 V2 # 3.40GHz 3.40 GHz it sits at 50 to 75 Celsius under load. normally its below 50. I have 20 gb ram and a 1050 ti. By the way i tested the pc after removing 1050 ti and placing quadro 4000 in it. But the problem did not solve. At one point computer would not even boot it kept on restarting at the booting screen. I don't know what to do...Help!?
Most probably it can be the PSU.
Windows Blue Screen of Death (BSOD) is a known windows error screen that appears now and then, randomly when some system drivers get corrupted, incompatible apps got installed, drivers outdated, etc. One such error is BSOD 0x8000400000000002. This error is related to kernel 41 critical error on Windows 10. And this is the same error you got. You can try:
Update the drivers: Open windows Device manager and from there you can update your drivers.
Turn off Fast Startup
Use a Restore Point, if you have one.
Unistall Recent Windows Update
Click on Start and open settings.
From settings, open Windows Update & Security option.
Then select “View Update History“
From the new page, click on “Uninstall Updates“.
Now, right-click on recently installed update and select Uninstall option.
Do uninstall all recent updates one by one and then restart your PC.
Update your BIOS
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
Closed 6 years ago.
Improve this question
I have a USB touchscreen connected to my hardware setup. and when I use cat /proc/bus/input/devices I get the following details about my device:
I: Bus=0003 Vendor=2965 Product=5023 Version=0110
N: Name="Kortek Kortek Touch"
P: Phys=usb-0000:00:14.0-3.4/input2
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3.4/3-3.4:1.2/0003:2965:5023.0006/input/input7
U: Uniq=S20131028
H: Handlers=mouse1 event7 js0
B: PROP=0
B: EV=1b
B: KEY=30000 0 0 0 0 0 0 0 0
B: ABS=3
B: MSC=10
I want to know what does the line S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3.4/3-3.4:1.2/0003:2965:5023.0006/input/input7 means. How to read it ? What are the numbers in the path ?
The Sysfs attribute is the location of that device within the sysfs filesystem. Assuming your kernel was compiled with CONFIG_SYSFS and the sysfs filesystem is mounted to /sys, you can view the device at:
/sys/devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3.4/3-3.4:1.2/0003:2965:5023.0006/input/input7
To break down what path represents:
/sys/ is the mountpoint of the sysfs filesystem (see the output of mount | grep sysfs).
/devices/ contains a filesystem representation of the device tree (source).
/pci0000:00/ describes the PCI domain and the bus number. In this case, the domain number is 0000 and the bus number is 00 (source).
/0000:00:14.0/ has the the PCI domain and bus number repeated, along with the slot and function. In this case, the USB device's slot number is 14 and its function number is 0 (source).
/usb3/ refers to USB controller attached to bus number 3 (source).
/3-3/3-3.4/3-3.4:1.2/ has redundant information. The last /3-3.4:1.2/ means you are referring to the USB controller attached to bus 3, port 3, port 4, configuration number 1 and interface number 2 (source).
/0003:2965:5023.0006/ means the device is attached to bus 0003, has a vendor ID of 2965, and a product ID of 5023.
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
Closed 6 years ago.
Improve this question
I installed openstack via devstack on Ubuntu 14.04. I have got 8 gb of ram on my computer and i have created around 8 VM's which i don't use simultaneously as I use the VM differently.
Now i cannot create any more VM's. I get an error message
No Valid Host was found.
there are not enough hosts available.
Can someone advice what should i do?
Since you say that this is a devstack installation, I'm assuming that you aren't running this in a production environment. Openstack allows users to bump up their over-subscription ratio for the RAM. By default, it is kept at 1.5 times the physical RAM available in the machine. Hence, it should be 12 Gb of usable memory. To change the subscription ratio:
sudo vim /etc/nova/nova.conf
#Add these two lines
ram_allocation_ratio=2
cpu_allocation_ratio=20 # Default value here is 16
These values are just a rough estimate. Change the values around to make them work for your environment. Restart the Devstack.
To check if the changes were made, log into mysql (or whichever DB is supporting devstack) and check:
mysql> use nova;
mysql> select * from compute_nodes \G;
*************************** 1. row ***************************
created_at: 2015-09-25 13:52:55
updated_at: 2016-02-03 18:32:49
deleted_at: NULL
id: 1
service_id: 7
vcpus: 8
memory_mb: 12007
local_gb: 446
vcpus_used: 6
memory_mb_used: 8832
local_gb_used: 80
hypervisor_type: QEMU
disk_available_least: 240
free_ram_mb: 3175
free_disk_gb: 366
current_workload: 0
running_vms: 4
pci_stats: NULL
metrics: []
.....
1 row in set (0.00 sec)
The Scheduler looks at the free_ram_mb. If you have a free_ram_mb of 3175 and if you want to run a new m1.medium instance with 4096M of memory, the Scheduler will end up with this message in the logs:
WARNING nova.scheduler.manager Failed to schedule_run_instance: No valid host was found.
Hence, make sure to keep an eye out for those when starting a new VM after making those changes.
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
Closed 9 years ago.
Improve this question
I have an issue with some processes stuck in a D state on Ubuntu 10.04.3 LTS.
They have been in this state since Nov the 5th (today being December 6th). I understand these are uninterruptible sleep states often related to waiting for data from hardware such as a hard disk. This is a production server so rebooting is a very last resort, is anyone able to shed any light on what these processes might be?
This is the output for the D state items from ps -aux
www-data 22851 0.0 0.0 0 0 ? D Nov05 0:00 [2637.64]
www-data 26306 0.0 0.0 4008 12 ? D Nov05 0:00 ./2.6.37
www-data 26373 0.0 0.0 4008 12 ? D Nov05 0:00 ./n2
www-data 26378 0.0 0.0 4008 12 ? D Nov05 0:00 ./n2
This is output of ps axl | awk '$10 ~ /D/' for a little more info.
0 33 22851 1 20 0 0 0 econet D ? 0:00 [2637.64]
1 33 26306 1 20 0 4008 12 ec_dev D ? 0:00 ./2.6.37
1 33 26373 1 20 0 4008 12 ec_dev D ? 0:00 ./n2
1 33 26378 1 20 0 4008 12 ec_dev D ? 0:00 ./n2
Is there a way to kill these? Does having processes in this state when rebooting cause any issues?
This is the dreaded un-interruptible (TASK_UNINTERRUPTIBLE) state of a process. This is the state where the process doesn't react to signals until what it started to wait for, gets done.
Unfortunately it is a necessary evil. See here and here What is an uninterruptable process?.
My answer is to reboot the system.
Do rebooting cause any issues ?
Hard to tell, it may it may not. The process which is in the D state may have to do some crucial updates which it wont if you reboot.
If you really cant afford to reboot, try to find the disk on which the process is waiting and see if the disk is working fine by opening, closing, reading/writing into it
No - you cannot kill them, period. kill -9 does not work either. And it is not kernel bug, it is by design. All signals are blocked until those processes leave the D state. They either leave the D state or the system gets rebooted. No, rebooting does not have any problem with these guys.
The usual culprits for this kind of problem are removable media devices like a cdrom. The device may be defective or somebody found a way to do something stupid.
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
Closed 5 years ago.
Improve this question
I am trying to analyze from where the amount of swap is from, and looking at smem display I get a completely different amount of swap usage.
Free shows the following :
[root#server1 ~/smem-1.3]# free -k
total used free shared buffers cached
Mem: 24554040 24197360 356680 0 510200 14443128
-/+ buffers/cache: 9244032 15310008
Swap: 20980880 2473120 18507760
And smem shows :
PID User Command Swap USS PSS RSS
...
18829 oracle oracle_1 (LOCAL=NO) 0 3.9M 98.3M 10.1G
18813 oracle oracle_1 (LOCAL=NO) 0 3.9M 98.6M 10.1G
18809 oracle oracle_1 (LOCAL=NO) 0 4.1M 99.2M 10.0G
28657 oracle ora_lms0_1 56.0K 54.1M 100.3M 4.2G
29589 oracle ora_lms1_1 964.0K 69.7M 118.9M 4.5G
29886 oracle ora_dbw1_1 5.7M 20.8M 130.9M 10.2G
29857 oracle ora_dbw0_1 4.2M 22.6M 133.0M 10.3G
11075 ccm_user /usr/java/jre1.6/bin/java - 197.8M 133.9M 135.9M 140.7M
21688 bsuser /usr/local/java/bin/java -c 30.7M 145.1M 147.2M 152.1M
29930 oracle ora_lck0_1 2.3M 58.6M 169.8M 1.0G
29901 oracle ora_smon_1 0 78.0M 195.6M 4.3G
15604 oracle /var/oragrid/jdk/jre//bin/j 65.4M 253.9M 254.3M 262.2M
-------------------------------------------------------------------------------
359 10 678.8M 2.5G 13.5G 1.2T
Why free shows me "2.4G" and smem only shows me 679M? One of them is showing some wrong result.
I need to find out where are the remaining 1.8G, or prove that free is showing wrong results.
Last but not least, the kernel is 2.6.18.
Well, the main issue is RSS(resident set size) and PSS(proportional set size). From http://www.selenic.com/smem/ as it says - "PSS instead measures each application's "fair share" of each shared area to give a realistic measure". On the otherhand, RSS overestimates by calculating shared memory area of multiple applications as their own. And this is why, you see the difference. In simple word, smem can differentiate between applications shared memory and rather than treating shared area as every applications own!