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RE: [dm-devel] Multipath issues with kernel device errors



On Wed, 2007-08-29 at 11:58 -0500, Jeffry Bilder wrote:
> Are the errors in the kernel log normal:
> 
> 
> Aug 28 10:30:15 rac02 kernel: end_request: I/O error, dev sdf, sector 513824
> Aug 28 10:30:15 rac02 kernel: Buffer I/O error on device sdf, logical block 64228
> Aug 28 10:30:15 rac02 kernel: Buffer I/O error on device sdf, logical block 64229
> Aug 28 10:30:15 rac02 kernel: Buffer I/O error on device sdf, logical block 64230
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64231
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64232
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64233
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64234
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64235
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64236
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64237
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64238
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64239
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64240
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64241
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64242
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64243
> Aug 28 10:30:16 rac02 kernel: Device sdf not ready.
> Aug 28 10:30:16 rac02 kernel: end_request: I/O error, dev sdf, sector 513824
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64228
> Aug 28 10:30:16 rac02 kernel: Device sdf not ready.
> Aug 28 10:30:16 rac02 kernel: end_request: I/O error, dev sdf, sector 513824
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64228
> Aug 28 10:30:16 rac02 kernel: Device sdf not ready.
> Aug 28 10:30:16 rac02 kernel: end_request: I/O error, dev sdf, sector 514064
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64258
> Aug 28 10:30:16 rac02 kernel: Device sdf not ready.
> Aug 28 10:30:16 rac02 kernel: end_request: I/O error, dev sdf, sector 513680
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64210
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64211
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64212
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64213
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64214
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64215
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64216
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64217
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64218
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64219
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64220
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64221
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64222
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64223
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64224
> Aug 28 10:30:16 rac02 kernel: Buffer I/O error on device sdf, logical block 64225
> Aug 28 10:30:16 rac02 kernel: Device sdf not ready.
> 
> 

Yes unfortunately these are normal for this array and any array that has
passive paths.  There are fixes needed in the kernel to eliminate these
errors.


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