* todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
@ 2009-12-09 9:49 Christian Borntraeger
2009-12-09 21:25 ` Heinz Diehl
0 siblings, 1 reply; 19+ messages in thread
From: Christian Borntraeger @ 2009-12-09 9:49 UTC (permalink / raw)
To: dm-devel; +Cc: LKML
[-- Attachment #1: Type: Text/Plain, Size: 7020 bytes --]
Hi,
with todays git I got a huge amount of warnings for device mapper:
device-mapper: uevent: version 1.0.3
device-mapper: ioctl: 4.15.0-ioctl (2009-04-01) initialised: dm-devel@redhat.com
device-mapper: table: 252:0: target device dasdf1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=196608
device-mapper: table: 252:0: target device dasde1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=196608
device-mapper: table: 252:0: target device dasdf1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=196608
device-mapper: table: 252:0: target device dasde1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=196608
device-mapper: table: 252:1: target device dasdf1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=5368905728
device-mapper: table: 252:1: target device dasde1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=5368905728
device-mapper: table: 252:1: target device dasdf1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=5368905728
device-mapper: table: 252:1: target device dasde1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=5368905728
device-mapper: table: 252:2: target device dasdf1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=6979518464
device-mapper: table: 252:2: target device dasde1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=6979518464
device-mapper: table: 252:2: target device dasdf1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=6979518464
device-mapper: table: 252:2: target device dasde1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=6979518464
device-mapper: table: 252:3: target device dasdf1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=7189233664
[...]
But the system seems to work fine.
The same devices produce no warning with a 2.6.32 vanilla kernel.
[root@t63lp34 ~]# pvdisplay
--- Physical volume ---
PV Name /dev/dasdf1
VG Name space
PV Size 22.49 GB / not usable 2.28 MB
Allocatable yes
PE Size (KByte) 4096
Total PE 5758
Free PE 3
Allocated PE 5755
PV UUID Uocvlz-I6wv-JtLH-8W5L-ziib-pP7h-4Qdzgz
--- Physical volume ---
PV Name /dev/dasde1
VG Name space
PV Size 22.49 GB / not usable 2.28 MB
Allocatable yes
PE Size (KByte) 4096
Total PE 5758
Free PE 15
Allocated PE 5743
PV UUID UuM16H-GUdC-gfA3-3yvE-c5Af-UVPW-Cfe2no
--- Physical volume ---
PV Name /dev/dasdd1
VG Name space
PV Size 4.59 GB / not usable 3.38 MB
Allocatable yes (but full)
PE Size (KByte) 4096
Total PE 1173
Free PE 0
Allocated PE 1173
PV UUID 800CzR-0hjD-lL6Z-yQPt-vRcl-WlYp-cUtZwJ
--- Physical volume ---
PV Name /dev/dasdc1
VG Name space
PV Size 4.59 GB / not usable 3.38 MB
Allocatable yes
PE Size (KByte) 4096
Total PE 1173
Free PE 12
Allocated PE 1161
PV UUID hG8bJE-xYJL-eo0N-tsD5-kdcH-AONB-FGdtAK
[root@t63lp34 ~]# vgdisplay
--- Volume group ---
VG Name space
System ID
Format lvm2
Metadata Areas 4
Metadata Sequence No 96
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 65
Open LV 4
Max PV 0
Cur PV 4
Act PV 4
VG Size 54.15 GB
PE Size 4.00 MB
Total PE 13862
Alloc PE / Size 13832 / 54.03 GB
Free PE / Size 30 / 120.00 MB
VG UUID AcRPg8-6DaJ-ND6i-s3H7-Sh5V-8KWa-KtKRmv
[-- Attachment #2: lvdisplay.txt --]
[-- Type: text/plain, Size: 49479 bytes --]
--- Logical volume ---
LV Name /dev/space/space
VG Name space
LV UUID fdSSaQ-yXkL-EoK2-Ai52-Gzjw-J4jz-DWGVIu
LV Write Access read/write
LV Status available
# open 1
LV Size 10.00 GB
Current LE 2560
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:0
--- Segments ---
Logical extent 0 to 2559:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 0 to 1279
Stripe 1:
Physical volume /dev/dasde1
Physical extents 0 to 1279
--- Logical volume ---
LV Name /dev/space/usr
VG Name space
LV UUID m46wUu-2P22-VNgE-vHuI-GD0l-MwlD-5rvxgS
LV Write Access read/write
LV Status available
# open 0
LV Size 3.00 GB
Current LE 768
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:1
--- Segments ---
Logical extent 0 to 767:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 1280 to 1663
Stripe 1:
Physical volume /dev/dasde1
Physical extents 1280 to 1663
--- Logical volume ---
LV Name /dev/space/r1
VG Name space
LV UUID o3nium-c6HG-9zfQ-CKXR-jQDa-vSB1-o28prX
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:2
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 1664 to 1713
Stripe 1:
Physical volume /dev/dasde1
Physical extents 1664 to 1713
--- Logical volume ---
LV Name /dev/space/s1
VG Name space
LV UUID vGsxRn-Zeko-WpJ9-mFSv-Q0F7-3jz4-fcASPn
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:3
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 1714 to 1763
Stripe 1:
Physical volume /dev/dasde1
Physical extents 1714 to 1763
--- Logical volume ---
LV Name /dev/space/r2
VG Name space
LV UUID 82xvhL-T117-x5X0-knbx-CDYc-VrRS-a91A9o
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:4
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 1764 to 1813
Stripe 1:
Physical volume /dev/dasde1
Physical extents 1764 to 1813
--- Logical volume ---
LV Name /dev/space/s2
VG Name space
LV UUID dKgX5f-Zp7d-0EN2-sobR-ZCbA-ksZS-nhAds2
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:5
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 1814 to 1863
Stripe 1:
Physical volume /dev/dasde1
Physical extents 1814 to 1863
--- Logical volume ---
LV Name /dev/space/r3
VG Name space
LV UUID U07Suj-iDZZ-vjcR-3xCa-r0EF-Oljt-Mq2LqU
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:6
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 1864 to 1913
Stripe 1:
Physical volume /dev/dasde1
Physical extents 1864 to 1913
--- Logical volume ---
LV Name /dev/space/s3
VG Name space
LV UUID RCPF1v-p6ab-dgAo-1mcl-evPJ-q7md-ozUSVw
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:7
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 1914 to 1963
Stripe 1:
Physical volume /dev/dasde1
Physical extents 1914 to 1963
--- Logical volume ---
LV Name /dev/space/r4
VG Name space
LV UUID 8pVIKo-23jG-cTLF-Pd87-zD4T-kCRd-Txnq9L
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:8
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 1964 to 2013
Stripe 1:
Physical volume /dev/dasde1
Physical extents 1964 to 2013
--- Logical volume ---
LV Name /dev/space/s4
VG Name space
LV UUID KtdttC-9LVf-eyna-mGDm-W3qe-4eC7-Iu2CSE
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:9
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2014 to 2063
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2014 to 2063
--- Logical volume ---
LV Name /dev/space/r5
VG Name space
LV UUID fenrJT-jooG-HK90-IDVT-3tqg-neTn-CecfGY
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:10
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2064 to 2113
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2064 to 2113
--- Logical volume ---
LV Name /dev/space/s5
VG Name space
LV UUID CCqiL9-u5G6-DbKi-9Bc5-p6M2-n1jb-vcfjuW
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:11
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2114 to 2163
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2114 to 2163
--- Logical volume ---
LV Name /dev/space/r6
VG Name space
LV UUID gqC4u6-a7v8-8bXW-Kpx0-OS9y-Ewpg-JHjUGP
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:12
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2164 to 2213
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2164 to 2213
--- Logical volume ---
LV Name /dev/space/s6
VG Name space
LV UUID 82lRZ1-zcJk-VZi8-ieEt-r9di-tIc0-UDhLbX
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:13
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2214 to 2263
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2214 to 2263
--- Logical volume ---
LV Name /dev/space/r7
VG Name space
LV UUID uGqt2G-H2So-qd9J-Iy7x-To0d-rZ10-MhrVnu
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:14
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2264 to 2313
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2264 to 2313
--- Logical volume ---
LV Name /dev/space/s7
VG Name space
LV UUID OK1kke-R0O3-T5Yk-2ZWR-g8P2-HWch-5ZJY9J
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:15
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2314 to 2363
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2314 to 2363
--- Logical volume ---
LV Name /dev/space/r8
VG Name space
LV UUID NnzKJe-AELf-tOjG-exG2-AHal-PIY3-5tGMuB
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:16
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2364 to 2413
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2364 to 2413
--- Logical volume ---
LV Name /dev/space/s8
VG Name space
LV UUID SfJPIf-tkBA-YFYC-H1YI-9Rn4-Zr6t-L4oMo8
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:17
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2414 to 2463
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2414 to 2463
--- Logical volume ---
LV Name /dev/space/r9
VG Name space
LV UUID gpU8VX-DmtK-R0cI-elfq-8qce-SxsI-BVdEn3
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:18
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2464 to 2513
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2464 to 2513
--- Logical volume ---
LV Name /dev/space/s9
VG Name space
LV UUID 8L28qG-rro7-3Y1b-dSTf-pAL2-38eG-6KQhG8
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:19
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2514 to 2563
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2514 to 2563
--- Logical volume ---
LV Name /dev/space/r10
VG Name space
LV UUID acfVZU-NRig-d8dY-7L7X-A44b-8TOM-3J4SCj
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:20
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2564 to 2613
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2564 to 2613
--- Logical volume ---
LV Name /dev/space/s10
VG Name space
LV UUID f8CLD0-Gza6-aZ7t-7KIO-rm3G-vioT-Cb716z
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:21
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2614 to 2663
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2614 to 2663
--- Logical volume ---
LV Name /dev/space/r11
VG Name space
LV UUID aisdqd-jf74-nse1-VxNL-Jri9-VIPd-1GuRln
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:22
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2664 to 2713
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2664 to 2713
--- Logical volume ---
LV Name /dev/space/s11
VG Name space
LV UUID M9GbxM-MTyu-FaBj-l0Cl-y9h8-QkUF-bPiiks
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:23
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2714 to 2763
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2714 to 2763
--- Logical volume ---
LV Name /dev/space/r12
VG Name space
LV UUID 46DYju-U0V1-W7aJ-aa5B-JLuZ-EJgc-esbBlS
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:24
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2764 to 2813
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2764 to 2813
--- Logical volume ---
LV Name /dev/space/s12
VG Name space
LV UUID 4bwv3V-URGq-xvuc-sEce-Xjet-vBoL-0u1Aak
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:25
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2814 to 2863
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2814 to 2863
--- Logical volume ---
LV Name /dev/space/r13
VG Name space
LV UUID 1Tho0H-d9S3-HzFR-bexS-dxt9-EyXI-qBVYub
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:26
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2864 to 2913
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2864 to 2913
--- Logical volume ---
LV Name /dev/space/s13
VG Name space
LV UUID RVynkA-84fe-JhZv-EO1I-7gtq-m2C0-y83V5j
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:27
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2914 to 2963
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2914 to 2963
--- Logical volume ---
LV Name /dev/space/r14
VG Name space
LV UUID xMTHOQ-n4sI-QBIC-PMEq-Brl3-kQ0f-Qbyr1R
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:28
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 2964 to 3013
Stripe 1:
Physical volume /dev/dasde1
Physical extents 2964 to 3013
--- Logical volume ---
LV Name /dev/space/s14
VG Name space
LV UUID s1Qaz1-2YZw-EEjZ-KpTi-GzRg-uXt4-Bbux2O
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:29
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 3014 to 3063
Stripe 1:
Physical volume /dev/dasde1
Physical extents 3014 to 3063
--- Logical volume ---
LV Name /dev/space/r15
VG Name space
LV UUID 8QDZ1W-dcPh-tJ2f-zYnn-8PG8-qf9Z-jsat6A
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:30
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
Stripe 0:
Physical volume /dev/dasdf1
Physical extents 3064 to 3113
Stripe 1:
Physical volume /dev/dasde1
Physical extents 3064 to 3113
--- Logical volume ---
LV Name /dev/space/s15
VG Name space
LV UUID VHNDmh-zq4w-zbBz-APRX-dkdx-d1KK-OY01bX
LV Write Access read/write
LV Status available
# open 0
LV Size 400.00 MB
Current LE 100
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:31
--- Segments ---
Logical extent 0 to 99:
Type striped
Stripes 2
Stripe size 64 KB
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^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
2009-12-09 9:49 todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings Christian Borntraeger
@ 2009-12-09 21:25 ` Heinz Diehl
2009-12-09 21:45 ` Jens Axboe
0 siblings, 1 reply; 19+ messages in thread
From: Heinz Diehl @ 2009-12-09 21:25 UTC (permalink / raw)
To: linux-kernel
On 09.12.2009, Christian Borntraeger wrote:
> with todays git I got a huge amount of warnings for device mapper:
> device-mapper: uevent: version 1.0.3
> device-mapper: ioctl: 4.15.0-ioctl (2009-04-01) initialised: dm-devel@redhat.com
> device-mapper: table: 252:0: target device dasdf1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=196608
[...]
> The same devices produce no warning with a 2.6.32 vanilla kernel.
I have exactly the same here...
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
2009-12-09 21:25 ` Heinz Diehl
@ 2009-12-09 21:45 ` Jens Axboe
2009-12-09 22:07 ` Jens Axboe
0 siblings, 1 reply; 19+ messages in thread
From: Jens Axboe @ 2009-12-09 21:45 UTC (permalink / raw)
To: Heinz Diehl; +Cc: linux-kernel, martin.petersen
On Wed, Dec 09 2009, Heinz Diehl wrote:
> On 09.12.2009, Christian Borntraeger wrote:
>
> > with todays git I got a huge amount of warnings for device mapper:
> > device-mapper: uevent: version 1.0.3
> > device-mapper: ioctl: 4.15.0-ioctl (2009-04-01) initialised: dm-devel@redhat.com
> > device-mapper: table: 252:0: target device dasdf1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=196608
> [...]
>
> > The same devices produce no warning with a 2.6.32 vanilla kernel.
>
> I have exactly the same here...
Can either one of you try and bisect it? I've cc'ed Martin, it's likely
one of the io stacking patches that causes this.
--
Jens Axboe
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
2009-12-09 21:45 ` Jens Axboe
@ 2009-12-09 22:07 ` Jens Axboe
2009-12-10 0:56 ` Mike Snitzer
` (3 more replies)
0 siblings, 4 replies; 19+ messages in thread
From: Jens Axboe @ 2009-12-09 22:07 UTC (permalink / raw)
To: Heinz Diehl; +Cc: linux-kernel, martin.petersen
On Wed, Dec 09 2009, Jens Axboe wrote:
> On Wed, Dec 09 2009, Heinz Diehl wrote:
> > On 09.12.2009, Christian Borntraeger wrote:
> >
> > > with todays git I got a huge amount of warnings for device mapper:
> > > device-mapper: uevent: version 1.0.3
> > > device-mapper: ioctl: 4.15.0-ioctl (2009-04-01) initialised: dm-devel@redhat.com
> > > device-mapper: table: 252:0: target device dasdf1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=196608
> > [...]
> >
> > > The same devices produce no warning with a 2.6.32 vanilla kernel.
> >
> > I have exactly the same here...
>
> Can either one of you try and bisect it? I've cc'ed Martin, it's likely
> one of the io stacking patches that causes this.
Does this work?
diff --git a/block/blk-settings.c b/block/blk-settings.c
index dd1f1e0..0116d29 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -554,11 +554,13 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
ret = -1;
}
+#if 0
if (offset &&
(offset & (b->discard_granularity - 1)) != b->discard_alignment) {
t->discard_misaligned = 1;
ret = -1;
}
+#endif
/* If top has no alignment offset, inherit from bottom */
if (!t->alignment_offset)
--
Jens Axboe
^ permalink raw reply related [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
2009-12-09 22:07 ` Jens Axboe
@ 2009-12-10 0:56 ` Mike Snitzer
2009-12-10 11:08 ` Christian Borntraeger
` (2 subsequent siblings)
3 siblings, 0 replies; 19+ messages in thread
From: Mike Snitzer @ 2009-12-10 0:56 UTC (permalink / raw)
To: Jens Axboe
Cc: Heinz Diehl, linux-kernel, martin.petersen,
Christian Borntraeger, dm-devel
On Wed, Dec 9, 2009 at 5:07 PM, Jens Axboe <jens.axboe@oracle.com> wrote:
> On Wed, Dec 09 2009, Jens Axboe wrote:
>> On Wed, Dec 09 2009, Heinz Diehl wrote:
>> > On 09.12.2009, Christian Borntraeger wrote:
>> >
>> > > with todays git I got a huge amount of warnings for device mapper:
>> > > device-mapper: uevent: version 1.0.3
>> > > device-mapper: ioctl: 4.15.0-ioctl (2009-04-01) initialised: dm-devel@redhat.com
>> > > device-mapper: table: 252:0: target device dasdf1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=196608
>> > [...]
>> >
>> > > The same devices produce no warning with a 2.6.32 vanilla kernel.
>> >
>> > I have exactly the same here...
>>
>> Can either one of you try and bisect it? I've cc'ed Martin, it's likely
>> one of the io stacking patches that causes this.
>
> Does this work?
>
> diff --git a/block/blk-settings.c b/block/blk-settings.c
> index dd1f1e0..0116d29 100644
> --- a/block/blk-settings.c
> +++ b/block/blk-settings.c
> @@ -554,11 +554,13 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
> ret = -1;
> }
>
> +#if 0
> if (offset &&
> (offset & (b->discard_granularity - 1)) != b->discard_alignment) {
> t->discard_misaligned = 1;
> ret = -1;
> }
> +#endif
>
> /* If top has no alignment offset, inherit from bottom */
> if (!t->alignment_offset)
Jens,
It should be noted that Christian (original poster but cc's got
dropped) is using striped LVs.
Striped LVs use blk_limits_io_opt() via drivers/md/dm-stripe.c:stripe_io_hints()
Martin's change for discard alignment (commit: 86b37281) also splits
out the least common multiple code, that was exclusively used for
io_opt, to a new lcm() function in block/blk-settings.c
On the surface I thought this might be the reason for the warnings,
but Martin's lcm() looks perfectly fine; can't see why it would cause
these warnings to appear all of a sudden... but I figured I'd share.
It'll be interesting to see if the discard_granularity block you
#ifdef'd out helps either Christian or Heinz.
Mike
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
@ 2009-12-10 0:56 ` Mike Snitzer
0 siblings, 0 replies; 19+ messages in thread
From: Mike Snitzer @ 2009-12-10 0:56 UTC (permalink / raw)
To: Jens Axboe
Cc: Heinz Diehl, linux-kernel, martin.petersen,
Christian Borntraeger, dm-devel
On Wed, Dec 9, 2009 at 5:07 PM, Jens Axboe <jens.axboe@oracle.com> wrote:
> On Wed, Dec 09 2009, Jens Axboe wrote:
>> On Wed, Dec 09 2009, Heinz Diehl wrote:
>> > On 09.12.2009, Christian Borntraeger wrote:
>> >
>> > > with todays git I got a huge amount of warnings for device mapper:
>> > > device-mapper: uevent: version 1.0.3
>> > > device-mapper: ioctl: 4.15.0-ioctl (2009-04-01) initialised: dm-devel@redhat.com
>> > > device-mapper: table: 252:0: target device dasdf1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=196608
>> > [...]
>> >
>> > > The same devices produce no warning with a 2.6.32 vanilla kernel.
>> >
>> > I have exactly the same here...
>>
>> Can either one of you try and bisect it? I've cc'ed Martin, it's likely
>> one of the io stacking patches that causes this.
>
> Does this work?
>
> diff --git a/block/blk-settings.c b/block/blk-settings.c
> index dd1f1e0..0116d29 100644
> --- a/block/blk-settings.c
> +++ b/block/blk-settings.c
> @@ -554,11 +554,13 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
> ret = -1;
> }
>
> +#if 0
> if (offset &&
> (offset & (b->discard_granularity - 1)) != b->discard_alignment) {
> t->discard_misaligned = 1;
> ret = -1;
> }
> +#endif
>
> /* If top has no alignment offset, inherit from bottom */
> if (!t->alignment_offset)
Jens,
It should be noted that Christian (original poster but cc's got
dropped) is using striped LVs.
Striped LVs use blk_limits_io_opt() via drivers/md/dm-stripe.c:stripe_io_hints()
Martin's change for discard alignment (commit: 86b37281) also splits
out the least common multiple code, that was exclusively used for
io_opt, to a new lcm() function in block/blk-settings.c
On the surface I thought this might be the reason for the warnings,
but Martin's lcm() looks perfectly fine; can't see why it would cause
these warnings to appear all of a sudden... but I figured I'd share.
It'll be interesting to see if the discard_granularity block you
#ifdef'd out helps either Christian or Heinz.
Mike
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
2009-12-10 0:56 ` Mike Snitzer
@ 2009-12-10 1:14 ` Martin K. Petersen
-1 siblings, 0 replies; 19+ messages in thread
From: Martin K. Petersen @ 2009-12-10 1:14 UTC (permalink / raw)
To: Mike Snitzer
Cc: Jens Axboe, Heinz Diehl, linux-kernel, martin.petersen,
Christian Borntraeger, dm-devel
>>>>> "Mike" == Mike Snitzer <snitzer@gmail.com> writes:
Mike> On the surface I thought this might be the reason for the
Mike> warnings, but Martin's lcm() looks perfectly fine; can't see why
Mike> it would cause these warnings to appear all of a sudden... but I
Mike> figured I'd share.
The warning is caused by an error in stacking discard granularity. I
have a fix but I'd like to run verify all my oddball alignment combos
before submitting.
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
@ 2009-12-10 1:14 ` Martin K. Petersen
0 siblings, 0 replies; 19+ messages in thread
From: Martin K. Petersen @ 2009-12-10 1:14 UTC (permalink / raw)
To: Mike Snitzer
Cc: martin.petersen, linux-kernel, Christian Borntraeger, dm-devel,
Jens Axboe, Heinz Diehl
>>>>> "Mike" == Mike Snitzer <snitzer@gmail.com> writes:
Mike> On the surface I thought this might be the reason for the
Mike> warnings, but Martin's lcm() looks perfectly fine; can't see why
Mike> it would cause these warnings to appear all of a sudden... but I
Mike> figured I'd share.
The warning is caused by an error in stacking discard granularity. I
have a fix but I'd like to run verify all my oddball alignment combos
before submitting.
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
2009-12-09 22:07 ` Jens Axboe
2009-12-10 0:56 ` Mike Snitzer
@ 2009-12-10 11:08 ` Christian Borntraeger
2009-12-10 14:08 ` Heinz Diehl
2009-12-12 1:51 ` Christian Kujau
2009-12-15 21:58 ` Christian Kujau
3 siblings, 1 reply; 19+ messages in thread
From: Christian Borntraeger @ 2009-12-10 11:08 UTC (permalink / raw)
To: Jens Axboe; +Cc: Heinz Diehl, linux-kernel, martin.petersen
Am Mittwoch 09 Dezember 2009 23:07:49 schrieb Jens Axboe:
> > > > device-mapper: table: 252:0: target device dasdf1 is misaligned: physical_block_size=4096, logical_block_size=4096, alignment_offset=0, start=196608
[...]
> Does this work?
[...]
> +#if 0
> if (offset &&
> (offset & (b->discard_granularity - 1)) != b->discard_alignment) {
> t->discard_misaligned = 1;
> ret = -1;
> }
> +#endif
Yes it does.
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
2009-12-10 11:08 ` Christian Borntraeger
@ 2009-12-10 14:08 ` Heinz Diehl
0 siblings, 0 replies; 19+ messages in thread
From: Heinz Diehl @ 2009-12-10 14:08 UTC (permalink / raw)
To: Christian Borntraeger; +Cc: Jens Axboe, linux-kernel, martin.petersen
On 10.12.2009, Christian Borntraeger wrote:
> Yes it does.
Yes, that fixes it for me too.
Thanks,
Heinz.
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
2009-12-10 1:14 ` Martin K. Petersen
@ 2009-12-11 9:28 ` Christian Borntraeger
-1 siblings, 0 replies; 19+ messages in thread
From: Christian Borntraeger @ 2009-12-11 9:28 UTC (permalink / raw)
To: Martin K. Petersen
Cc: Mike Snitzer, Jens Axboe, Heinz Diehl, linux-kernel, dm-devel
Am Donnerstag 10 Dezember 2009 02:14:03 schrieb Martin K. Petersen:
> The warning is caused by an error in stacking discard granularity. I
> have a fix but I'd like to run verify all my oddball alignment combos
> before submitting.
Martin,
any news on the final fix? Do you want Heinz and me to verify your fix
on our systems?
Christian
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
@ 2009-12-11 9:28 ` Christian Borntraeger
0 siblings, 0 replies; 19+ messages in thread
From: Christian Borntraeger @ 2009-12-11 9:28 UTC (permalink / raw)
To: Martin K. Petersen; +Cc: linux-kernel, dm-devel, Heinz Diehl, Jens Axboe
Am Donnerstag 10 Dezember 2009 02:14:03 schrieb Martin K. Petersen:
> The warning is caused by an error in stacking discard granularity. I
> have a fix but I'd like to run verify all my oddball alignment combos
> before submitting.
Martin,
any news on the final fix? Do you want Heinz and me to verify your fix
on our systems?
Christian
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: [dm-devel] Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
2009-12-11 9:28 ` Christian Borntraeger
@ 2009-12-11 16:47 ` Martin K. Petersen
-1 siblings, 0 replies; 19+ messages in thread
From: Martin K. Petersen @ 2009-12-11 16:47 UTC (permalink / raw)
To: device-mapper development
Cc: Martin K. Petersen, linux-kernel, Heinz Diehl, Jens Axboe
>>>>> "Christian" == Christian Borntraeger <borntraeger@de.ibm.com> writes:
Christian> any news on the final fix? Do you want Heinz and me to verify
Christian> your fix on our systems?
Looking into this issue unearthed an unrelated problem with the topology
stacking algorithm that turns out to be much trickier to fix. That's
what's taking time.
Since the first bug is simply causing a warning I'm inclined to get
everything fixed up before having Jens queue a fix. Shouldn't be more
than a day or two before I have all this worked out.
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
@ 2009-12-11 16:47 ` Martin K. Petersen
0 siblings, 0 replies; 19+ messages in thread
From: Martin K. Petersen @ 2009-12-11 16:47 UTC (permalink / raw)
To: device-mapper development
Cc: Jens Axboe, linux-kernel, Martin K. Petersen, Heinz Diehl
>>>>> "Christian" == Christian Borntraeger <borntraeger@de.ibm.com> writes:
Christian> any news on the final fix? Do you want Heinz and me to verify
Christian> your fix on our systems?
Looking into this issue unearthed an unrelated problem with the topology
stacking algorithm that turns out to be much trickier to fix. That's
what's taking time.
Since the first bug is simply causing a warning I'm inclined to get
everything fixed up before having Jens queue a fix. Shouldn't be more
than a day or two before I have all this worked out.
--
Martin K. Petersen Oracle Linux Engineering
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
2009-12-09 22:07 ` Jens Axboe
2009-12-10 0:56 ` Mike Snitzer
2009-12-10 11:08 ` Christian Borntraeger
@ 2009-12-12 1:51 ` Christian Kujau
2009-12-15 21:58 ` Christian Kujau
3 siblings, 0 replies; 19+ messages in thread
From: Christian Kujau @ 2009-12-12 1:51 UTC (permalink / raw)
To: Jens Axboe; +Cc: Heinz Diehl, LKML, martin.petersen
On Wed, 9 Dec 2009 at 23:07, Jens Axboe wrote:
> Does this work?
Although not using LVM, these messages were popping up here too. Your
patch made these go away with no ill effects so far.
Dmesg and .config: http://nerdbynature.de/bits/2.6.33-git/dm/
Thanks,
Christian.
>
> diff --git a/block/blk-settings.c b/block/blk-settings.c
> index dd1f1e0..0116d29 100644
> --- a/block/blk-settings.c
> +++ b/block/blk-settings.c
> @@ -554,11 +554,13 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
> ret = -1;
> }
>
> +#if 0
> if (offset &&
> (offset & (b->discard_granularity - 1)) != b->discard_alignment) {
> t->discard_misaligned = 1;
> ret = -1;
> }
> +#endif
>
> /* If top has no alignment offset, inherit from bottom */
> if (!t->alignment_offset)
--
BOFH excuse #254:
Interference from lunar radiation
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
2009-12-09 22:07 ` Jens Axboe
` (2 preceding siblings ...)
2009-12-12 1:51 ` Christian Kujau
@ 2009-12-15 21:58 ` Christian Kujau
2009-12-15 22:02 ` Jens Axboe
3 siblings, 1 reply; 19+ messages in thread
From: Christian Kujau @ 2009-12-15 21:58 UTC (permalink / raw)
To: Jens Axboe; +Cc: Heinz Diehl, LKML, martin.petersen
On Wed, 9 Dec 2009 at 23:07, Jens Axboe wrote:
> Does this work?
>
[...]
> +#if 0
> if (offset &&
> (offset & (b->discard_granularity - 1)) != b->discard_alignment) {
> t->discard_misaligned = 1;
> ret = -1;
> }
> +#endif
I can't tell: is this a purely cosmetical change or is it dangerous to run
my DM devices without that patch? I'm trying to track mainline -git but
the patch hasn't made into the tree yet, so I always have to manually
apply the patch - or can I just ignore the warning?
Christian.
--
BOFH excuse #153:
Big to little endian conversion error
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
2009-12-15 21:58 ` Christian Kujau
@ 2009-12-15 22:02 ` Jens Axboe
2009-12-15 22:08 ` Martin K. Petersen
0 siblings, 1 reply; 19+ messages in thread
From: Jens Axboe @ 2009-12-15 22:02 UTC (permalink / raw)
To: Christian Kujau; +Cc: Heinz Diehl, LKML, martin.petersen
On Tue, Dec 15 2009, Christian Kujau wrote:
> On Wed, 9 Dec 2009 at 23:07, Jens Axboe wrote:
> > Does this work?
> >
> [...]
> > +#if 0
> > if (offset &&
> > (offset & (b->discard_granularity - 1)) != b->discard_alignment) {
> > t->discard_misaligned = 1;
> > ret = -1;
> > }
> > +#endif
>
> I can't tell: is this a purely cosmetical change or is it dangerous to run
> my DM devices without that patch? I'm trying to track mainline -git but
> the patch hasn't made into the tree yet, so I always have to manually
> apply the patch - or can I just ignore the warning?
You can ignore it, it wont harm the functionality or data integrity. The
code "failure" will always trigger, since the default settings are 0.
Thus:
(offset & (b->discard_granularity - 1)) != b->discard_alignment
will always be true.
I'll revert the bad commit tomorrow so that -rc1 wont be affected, at
least.
--
Jens Axboe
^ permalink raw reply [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
2009-12-15 22:02 ` Jens Axboe
@ 2009-12-15 22:08 ` Martin K. Petersen
2009-12-15 22:16 ` Jens Axboe
0 siblings, 1 reply; 19+ messages in thread
From: Martin K. Petersen @ 2009-12-15 22:08 UTC (permalink / raw)
To: Jens Axboe; +Cc: Christian Kujau, Heinz Diehl, LKML, martin.petersen
>>>>> "Jens" == Jens Axboe <jens.axboe@oracle.com> writes:
Jens> I'll revert the bad commit tomorrow so that -rc1 wont be affected,
Jens> at least.
I'm pretty close to having a new stacking algorithm that works. If I
don't have it ready by tomorrow maybe we should commit the following
patch instead of reverting the discard changes wholesale?
diff --git a/block/blk-settings.c b/block/blk-settings.c
index dd1f1e0..65ae861 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -555,10 +555,8 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
}
if (offset &&
- (offset & (b->discard_granularity - 1)) != b->discard_alignment) {
+ (offset & (b->discard_granularity - 1)) != b->discard_alignment)
t->discard_misaligned = 1;
- ret = -1;
- }
/* If top has no alignment offset, inherit from bottom */
if (!t->alignment_offset)
^ permalink raw reply related [flat|nested] 19+ messages in thread
* Re: todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings
2009-12-15 22:08 ` Martin K. Petersen
@ 2009-12-15 22:16 ` Jens Axboe
0 siblings, 0 replies; 19+ messages in thread
From: Jens Axboe @ 2009-12-15 22:16 UTC (permalink / raw)
To: Martin K. Petersen; +Cc: Christian Kujau, Heinz Diehl, LKML
On Tue, Dec 15 2009, Martin K. Petersen wrote:
> >>>>> "Jens" == Jens Axboe <jens.axboe@oracle.com> writes:
>
> Jens> I'll revert the bad commit tomorrow so that -rc1 wont be affected,
> Jens> at least.
>
> I'm pretty close to having a new stacking algorithm that works. If I
> don't have it ready by tomorrow maybe we should commit the following
> patch instead of reverting the discard changes wholesale?
>
> diff --git a/block/blk-settings.c b/block/blk-settings.c
> index dd1f1e0..65ae861 100644
> --- a/block/blk-settings.c
> +++ b/block/blk-settings.c
> @@ -555,10 +555,8 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
> }
>
> if (offset &&
> - (offset & (b->discard_granularity - 1)) != b->discard_alignment) {
> + (offset & (b->discard_granularity - 1)) != b->discard_alignment)
> t->discard_misaligned = 1;
> - ret = -1;
> - }
>
> /* If top has no alignment offset, inherit from bottom */
> if (!t->alignment_offset)
I guess we could do that, as long as it gets really fixed before 2.6.33.
It's a bit ugly to be exporting the device as misaligned, when it's
really just a fudged internally.
--
Jens Axboe
^ permalink raw reply [flat|nested] 19+ messages in thread
end of thread, other threads:[~2009-12-15 22:16 UTC | newest]
Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-12-09 9:49 todays git regression (2.6.32-04008.g3ff6a46): lot of device mapper warnings Christian Borntraeger
2009-12-09 21:25 ` Heinz Diehl
2009-12-09 21:45 ` Jens Axboe
2009-12-09 22:07 ` Jens Axboe
2009-12-10 0:56 ` Mike Snitzer
2009-12-10 0:56 ` Mike Snitzer
2009-12-10 1:14 ` Martin K. Petersen
2009-12-10 1:14 ` Martin K. Petersen
2009-12-11 9:28 ` Christian Borntraeger
2009-12-11 9:28 ` Christian Borntraeger
2009-12-11 16:47 ` [dm-devel] " Martin K. Petersen
2009-12-11 16:47 ` Martin K. Petersen
2009-12-10 11:08 ` Christian Borntraeger
2009-12-10 14:08 ` Heinz Diehl
2009-12-12 1:51 ` Christian Kujau
2009-12-15 21:58 ` Christian Kujau
2009-12-15 22:02 ` Jens Axboe
2009-12-15 22:08 ` Martin K. Petersen
2009-12-15 22:16 ` Jens Axboe
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