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Subjectregression: SCSI/SATA failure
Date
Hi Christoph,

one of our test box Skylake servers does not boot with v4.16-rcX.
Bisection lead us to this commit:

84676c1f21e8 genirq/affinity: assign vectors to all possible CPUs

Reverting this single commit fixes the problem.

The server is a Dell R640 machine with the latest Dell BIOS. It has a
single SATA SSD and we do not use raid, even though the system does
have a megaraid controller.

Are you aware of this issue? Below is the failure message and the full
dmesg with some debugging boot parameters is here:

https://pastebin.com/raw/tTYrTAEQ

[ 201.706075] sd 14:2:0:0: [sda] tag#0 task abort called for scmd(00000000c342d874)
[ 201.720357] sd 14:2:0:0: [sda] tag#0 CDB: Read(10) 28 00 0d e7 ff 80 00 00 08 00
[ 201.734621] sd 14:2:0:0: task abort: FAILED scmd(00000000c342d874)
[ 201.754134] sd 14:2:0:0: target reset called for scmd(00000000c342d874)
[ 201.767566] sd 14:2:0:0: [sda] tag#0 megasas: target reset FAILED!!
[ 201.780690] sd 14:2:0:0: [sda] tag#0 Controller reset is requested due to IO timeout
[ 201.780690] SCSI command pointer: (00000000c342d874) SCSI host state: 5 SCSI
[ 201.809709] IO request frame:
[ 201.809709]
[ 201.809710] f1000000
[ 201.827987] 00000000
[ 201.836901] 00000000
[ 201.846047] 5d880000
[ 201.855161] 00600002
[ 201.864093] 00000020
[ 201.872746] 00000000
[ 201.881168] 00001000
[ 201.889432]
[ 201.889432]
[ 201.897570] 00000000
[ 201.912011] 0000000a
[ 201.919897] 00000000
[ 201.927608] 00000000
[ 201.935275] 00000000
[ 201.943047] 00000000
[ 201.950516] 00000000
[ 201.957709] 02000000
[ 201.964776]
[ 201.964776]
[ 201.971731] e70d0028
[ 201.983967] 000080ff
[ 201.990676] 00000008
[ 201.997192] 00000000
[ 202.003611] 00000000
[ 202.009812] 00000000
[ 202.015847] 00000000
[ 202.021770] 00000000
[ 202.027576]
[ 202.027576]
[ 202.033382] 00140012
[ 202.043209] 00000009
[ 202.048521] 0de7ff80
[ 202.053711] 00000000
[ 202.058818] 00000008
[ 202.063850] 00000000
[ 202.068797] 00020100
[ 202.073549] 00000000
[ 202.078131]
[ 202.078131]
[ 202.082708] beb56000
[ 202.089903] 0000002f
[ 202.094106] 00001000
[ 202.098230] 40000000
[ 202.102238] 00000000
[ 202.106134] 00000000
[ 202.109878] 00000000
[ 202.113456] 00000000
[ 202.117008]
[ 202.117008]
[ 202.120545] 00000000
[ 202.126100] 00000000
[ 202.129656] 00000000
[ 202.133191] 00000000
[ 202.136716] 00000000
[ 202.140241] 00000000
[ 202.143767] 00000000
[ 202.147264] 00000000
[ 202.150772]
[ 202.150772]
[ 202.154257] 00000000
[ 202.159702] 00000000
[ 202.163206] 00000000
[ 202.166706] 00000000
[ 202.170204] 00000000
[ 202.173697] 00000000
[ 202.177186] 00000000
[ 202.180659] 00000000
[ 202.184135]
[ 202.184135]
[ 202.187592] 00000000
[ 202.192952] 00000000
[ 202.196440] 00000000
[ 202.199892] 00000000
[ 202.203349] 00000000
[ 202.206798] 00000000
[ 202.210252] 00000000
[ 202.213691] 00000000
[ 202.217140]

--
Best Regards,
Artem Bityutskiy
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