Questions tagged [bug]
30 questions
20
votes
2 answers
What is the Rowhammer DRAM bug and how should I treat it?
DRAM chips are very tightly packed. Research has shown that neighboring bits can be flipped at random.
What is the probability of the bug triggering at random in a server-grade DRAM chip with ECC (the CMU-Intel paper cites e.g. the number…
Deer Hunter
- 1,070
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6
votes
3 answers
Broken BIOS detected, complain to your hardware vendor. WTF?
This is what I found in dmesg on my new Fedora 16 instalation on new HP ProLiant DL320 G6
[ 0.130963] Performance Events: PEBS fmt1+, Westmere events, Broken BIOS detected, complain to your hardware vendor.
[ 0.130971] [Firmware Bug]:…
B14D3
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4
votes
2 answers
free reports bogus amount of swap used
The swap used reported by free is very high.
[root@rhel6 ~]# free -m
total used free shared buffers cached
Mem: 9892 9537 354 0 71 884
-/+ buffers/cache: 8581 …
Jonathan Lynch
- 193
- 5
3
votes
0 answers
BUG message on xenserver 6.5 - bad memory?
Several times a day I receive the following error in /var/log/messages. The server hangs and requires a reboot to respond again:
Feb 1 13:44:54 xenserver-abfuqvrs kernel: [35023.166776] BUG: unable to handle kernel paging request at…
W Khan
- 58
- 6
3
votes
1 answer
Bug in diff: wrong output for one-character files without newline
Consider this:
echo -n a > /tmp/a
echo -n b > /tmp/b
diff -B /tmp/a /tmp/b
Clearly, the two files are different, yet, diff seems to think that the files are identical. I've managed to reproduce this problem on Ubuntu 14.04 with diffutils 3.3, on…
Navin
- 133
- 5
3
votes
1 answer
Blue Screen, unexpected shutdown on Windows Server 2012! (APC_INDEX_MISMATCH)
We have 2 new servers set up to allow remote desktop sessions throughout the warehouse. Intermittently we get complaints that the session has stopped working or has frozen. When we check the servers they have a blue screen with the error…
jayburna688
- 31
- 1
- 3
3
votes
2 answers
Where can I report an issue with ASP.NET Browsers File?
While working with an ASP.NET application on Chrome for Android I discovered that Request.Browser.Cookies returns False for that browser (despite the browser supporting cookies). Based on what I've read, this indicates a problem with the database…
Nathan Taylor
- 240
- 3
- 11
3
votes
1 answer
What was happening in this Let's Encrypt CAA bug?
Recently, Let's Encrypt shared this bug that occured in their systems leading to certificate issues to their clients. They describe the bug this way:
The bug: when a certificate request contained N domain names that needed CAA rechecking, Boulder…
Sara Chipps
- 141
- 4
2
votes
2 answers
libxml2 on CentOS 5.9
I'm having problems with a CentOS 5.9 web server running php sites. Apparently libxml2 2.6.26-2.1.21.el5_9.2 has a known bug, but there doesn't seem like they've put the newer release into the repo's, as you can't update it using yum.
I searched a…
user167772
- 23
- 4
2
votes
2 answers
MySQL allows entry without Password
I have configured my MySQL Database to require passwords on all users, even root from the machine itself.
Now I discovered that there are empty Users in my Database
Reproduce: mysql -u root -p and then use mysql; & select * from user;
It gives me 2…
v3nd3tta
- 23
- 4
1
vote
2 answers
How to configure IPsec (strongswan) interface, so that only assigned interface gets virtual ip?
I have already used this configuration a bunch of times and I haven't had this problem before. Basically I establish the tunnel connection, but after connecting (with swanctl --initiate --child ch_vti0 --ike ch_vti0)
I get my virtual ip assigned on…
Kostadin Krushkov
- 105
- 2
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1
vote
0 answers
CTRL down on reconnect - Is this a bug in Remote Desktop?
I stumbled upon a weird problem when using RDP and it seems to be reproducible in my environment:
Connect (in my case from Windows 7) to a remote Windows system (here Windows 2012)
Open up a browser (Chrome) on the remote system and go to an…
Rob
- 184
- 1
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1
vote
0 answers
Ubuntu 17.4 not reachable over lan after login
I'm hosting a website on nginx to upload/download zip files over LAN.
I switched to Nginx and Ubuntu 17.4 and there worked too but just for a minute, then the server become not reachable for any PC on LAN or vice versa.
if I type the local IP on the…
user420750
- 11
- 1
1
vote
1 answer
Shellshock protection in Rackspace Ubuntu
I am trying to update my Ubuntu 13.10 servers in Rackspace to avoid Shellshock bug, but it is not working. Here is what I am doing:
$ sudo apt-get update && sudo apt-get install --only-upgrade bash
it says:
bash is already the newest version.
0…
Daniel Cukier
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1
vote
1 answer
Networking / Multipath dropping
I'm having problem with few linux boxes running xen. They are acting as hypervisors and they are connected to SAN using multipath setup to provide storage to guest vms.
Every now and then one of two paths fails but it can be quickly restored by…
user124381
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