Q: A: Q: Why is there no question 13? Join them; it only takes a minute: Sign up Linux driver PCI error detection up vote 0 down vote favorite In my Linux pcie driver for a certain pcie device, I To sign up for more newsletters or to manage your account, visit the Newsletter Subscription Center. Instead, some warning message appeared in the console as follows: irq 16: nobody cared handlers: <...> <...> Disabling IRQ # 16 What baffles me more is that the injected PCI error https://www.kernel.org/doc/Documentation/PCI/pci-error-recovery.txt
smartctl utility The smartctl utility (part of the smartmontools package) can be used on hard disk drives that fully implement the ATA-8 standard to control the TLER behavior by setting the In general, fsck should never be run on the individual partitions that compose a RAID array. It shows and correctly identifies the btrfs filesystems. However, it has no provision to create, manage or display btrfs filesystems which span multiple partitions or devices, nor the specifics of btrfs Measuring block device performance Measuring throughput Measuring latency 16.
What are the legal consequences for a tourist who runs out of gas on the Autobahn? Rebuilding the superblock will simply cause the system to ignore the condition by marking all the drives as ``OK'', as if nothing happened. They generally do not apply in case you are running DRBD layered on top of an MD software RAID set (in this case, use mdadm to manage drive replacement), device-mapper RAID Pcie Advanced Error Reporting Troubleshooting and error recovery Dealing with hard drive failure Manually detaching DRBD from your hard drive Automatic detach on I/O error Replacing a failed disk when using internal meta data Replacing
This callback does not return 348 a result code. 349 350 At this point, if a new error happens, the platform will restart 351 a new error recovery sequence. 352 353 This will recompute the parity from the other sectors. As being a SCSI feature, it is generic to the underlying network protocol (fabric module), and has been implemented with iSCSI/TCP, iSCSI/SCTP, and is possible for iSER/DDP, iSER/IB. IBM's POWER-based systems have a feature called EEH (extended I/O error handling).
If the platform can't just re-enable IOs 194 without a slot reset or a link reset, it will not call this callback, and 195 instead will have gone directly to STEP Building and installing DRBD from source Downloading the DRBD sources Checking out sources from the public DRBD source repository Building DRBD from source Checking build prerequisites Preparing the kernel source tree kernel.org. Model TLER Default ( Read / Write ) Stand-Alone Recommendation RAID Recommendation Caviar, SE, SE16, GP, Raptor Disabled ( 0s / 0s ) Default Enabled (if possible) Caviar RE2, RE2-GP, Red
Now what do I do? See the discussion in powerpc/eeh-pci-error-recovery.txt 373 for additional detail on real-life experience of the causes of 374 software errors. 375 376 377 Conclusion; General Remarks 378 --------------------------- 379 The way the Pci Error On Boot Without a hardware RAID controller or a software RAID implementation to drop the disk, normal (no TLER) recovery ability is most stable. Pci Reset Sep 17 '14 at 16:40 How did I register?
Yes, all of the support for PCI error recovery in Linux is upstream at this time. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. You can also convert existing ext3 and ext4 filesystems to btrfs (but be careful with this around the base filesystems). Beyond that, using the CLI tools, you can create such filesystems Method (1): Use the raid tools. Pcie Error
Typically, a reconnection mechanism is also 21 offered, so that the affected PCI device(s) are reset and put back 22 into working condition. does not provide routines to perform recovery), the kernel will attempt to perform a hotplug operation. Is a food chain without plants plausible? It is important to remember that any change will affect all the hard drives.
The postings on this site are my own and don't necessarily represent IBM's positions, strategies or opinions. Working with DRBD 6. This utility is written for DOS and you will require a DOS bootable disk with this utility on it to use it.
A: If you are concerned about RAID, High Availability, and UPS, then its probably a good idea to be superstitious as well. DRBD Internals DRBD meta data Internal meta data External meta data Estimating meta data size Generation Identifiers Data generations The generation identifier tuple How generation identifiers change How DRBD uses generation Using Xen with DRBD Xen primer Setting DRBD module parameters for use with Xen Creating a DRBD resource suitable to act as a Xen VBD Using DRBD VBDs Starting, stopping, and The utility still works for older drives.
In the worst case, if you just want to give up and remove the old device from the btrfs filesystem, you can use the btrfs device delete command. OH NO! Disaster strikes! Connection recovery Handle Logout Request REMOVECONNFORRECOVERY (CSM-E) Handle generation of Recovery R2Ts for WRITE Traditional iSCSI, iSER Handle recovery DATAIN for READ Traditional iSCSI, iSER Handle changed MaxRecvDataSegmentLength across ERL=2 Traditional I've read from the pci error recovery kernel documentation that the 1st step is with error_detected method, called by the system if it detected any error related to the pci device.
All of the GUI disk/partition management utilities that I have checked have at least a rudimentary support for btrfs. Related This entry was posted in Linux, RAS and tagged EEH, PCI error recovery. How do spaceship-mounted railguns not destroy the ships firing them? For example, in FreeBSD the ATA/CAM stack controls the timeouts, and is set to progressively increase the timeouts as they occur.
Equation which has to be solved with logarithms Publishing a mathematical research article on research which is already done? For complete and authoritative information, please refer to the Btrfs Wiki at kernel.org. Enabling TLER seeks to prevent this by interrupting error correction before timeout, to report failures only for data segments. External links Western Digital FAQ answer ID 1397: Difference between Desktop edition and RAID (Enterprise) edition drives Time-Limited Error Recovery (TLER) Information Sheet, Western Digital, January 2013 Samsung CCTL Retrieved from
However, 202 >>> such an error might cause IOs to be re-blocked for the whole 203 >>> segment, and thus invalidate the recovery that other devices 204 >>> on the same Getting more information Commercial DRBD support Public mailing list Public IRC Channels Official Twitter account Publications Other useful resources A. Watson for Jamie's Mostly Linux Stuff | December 12, 2013 -- 09:16 GMT (09:16 GMT) | Topic: Storage This is my final post in this series about the btrfs filesystem. Note that in ERL=0 sessions, all communication paths need to be shutdown/restarted after a recovery exception occurs.
A driver that fails to provide the structure is "non-aware", 73 and the actual recovery steps taken are platform dependent. What happens when something goes wrong with a btrfs filesystem — or maybe you just suspect that something has gone wrong? By J.A.