Comment 51 for bug 1217189
Revision history for this message
| Kenneth Parker (sea7kenp) wrote Re: Buffer I/O error on device zram0 (possibly causing complete machine lockup) | #51 |
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f33e652
(Get the code!)
I STRONGLY suggest that this is NOT a duplicate of bug #1215513, as a fix was distributed that fixes the "System Locks Up" part, but leaves this error message.
In my first comment, both on this Bug and on Bug #1215513, I responded to the error message by entering "fdisk /dev/ram0", under root, followed by "p", which showed it to never be partitioned, or anything (like a SWAP partition being defined). So it LOOKS like I was never in danger of bug #1215513, but only experiencing the messages, noted in this Bug (#1217189). Even though no "actual harm" is done, through a "pure experience" of Bug # 1217189, the error messages still appear, after "fix" of #1215513, which can CERTAINLY alarm production Linux administrators anywhere, and cause loss of money in any case where the Server is anything but something assisting non-profit volunteer work, where they can be told they need to be patient and wait for their services. (Actually, due to an early message by dac922, I was able to disable zram services on a system that has no intention of using them).
Obviously, what happened was that the Kernel 3.8 work, IMPLEMENTING zram0 swap was "back-ported" to the 3.2 Kernel tree, somewhere <= vmlinuz-
Remember, my system is Ubuntu 12.0.4 LTS Server, which, in my opinion is not in any condition for "stray zram swap" creation! Fortunately, somebody ported the package zram-config to 12.0.4, allowing me to get it, which, in effect PERMANENTLY DISABLES the zram0 processes, because they fail, during the install of zram-config, allowing "apt-get upgrade" to state that it was not successful in the "install" of this package.
So I suggest that somebody on this forum, in either of these Bug reports (again, I'm too busy administering Linux to normally submit fixes!) put some of this text in some "FAQ file" somewhere,
Forgive my dry humor in this post. As a Linux admin, I'm trained to "roll with the punches" and to consider the humor of life on Planet Earth (and, forgive me for adding) the political system in the USA!!! :-)
Thank you and best regards,
Kenneth Parker, Seattle, WA
-- I'm a Troubleshooter. I look for Trouble and Shoot It! :-)