1 |
Am Mittwoch 11 Juli 2007 10:01 schrieb Alexander Skwar: |
2 |
> Hello. |
3 |
> |
4 |
> Yesterday, I installed gentoo-sources-2.6.22. When I now boot this new |
5 |
> kernel, I notice that all of a sudden my SATA disk is addressed with |
6 |
> /dev/hda, whereas it used to be addressed with /dev/sda in 2.6.21. Why's |
7 |
> that? |
8 |
> |
9 |
> But much more important: The IDE performance is now extremely bad. |
10 |
> |
11 |
> ,----[ hdparm -tT /dev/hda, kernel 2.6.22 ] |
12 |
> |
13 |
> | /dev/hda: |
14 |
> | Timing cached reads: 2414 MB in 2.00 seconds = 1208.28 MB/sec |
15 |
> | Timing buffered disk reads: 8 MB in 3.99 seconds = 2.00 MB/sec |
16 |
> |
17 |
> `---- |
18 |
> |
19 |
> With 2.6.21, it's A LOT faster: |
20 |
> |
21 |
> ,----[ hdparm -tT /dev/sda, kernel 2.6.21 ] |
22 |
> |
23 |
> | /dev/sda: |
24 |
> | Timing cached reads: 2414 MB in 2.00 seconds = 1207.80 MB/sec |
25 |
> | Timing buffered disk reads: 150 MB in 3.01 seconds = 49.76 MB/sec |
26 |
> |
27 |
> `---- |
28 |
> |
29 |
> The drive is (is?) running with udma5 in both cases, according to |
30 |
> hdparm: |
31 |
> |
32 |
> ,----[ hdparm -Him /dev/sda, kernel 2.6.21 ] |
33 |
> |
34 |
> | /dev/sda: |
35 |
> | drive temperature (celsius) is: 42 |
36 |
> | drive temperature in range: yes |
37 |
> | HDIO_GET_MULTCOUNT failed: Inappropriate ioctl for device |
38 |
> | |
39 |
> | Model=Hitachi HTS721010G9SA00 , FwRev=MCZOC10H, |
40 |
> | SerialNo= MPCZN7Y0H7E5VL Config={ HardSect NotMFM HdSw>15uSec Fixed |
41 |
> | DTR>10Mbs } |
42 |
> | RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4 |
43 |
> | BuffType=DualPortCache, BuffSize=7538kB, MaxMultSect=16, MultSect=?8? |
44 |
> | CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=195371568 |
45 |
> | IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120} |
46 |
> | PIO modes: pio0 pio1 pio2 pio3 pio4 |
47 |
> | DMA modes: mdma0 mdma1 mdma2 |
48 |
> | UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 |
49 |
> | AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled |
50 |
> | Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1: |
51 |
> | ATA/ATAPI-2,3,4,5,6,7 |
52 |
> | |
53 |
> | * signifies the current active mode |
54 |
> |
55 |
> `---- |
56 |
> |
57 |
> ,----[ hdparm -Him /dev/hda, kernel 2.6.22 ] |
58 |
> |
59 |
> | /dev/hda: |
60 |
> | drive temperature (celsius) is: 41 |
61 |
> | drive temperature in range: yes |
62 |
> | multcount = 16 (on) |
63 |
> | |
64 |
> | Model=Hitachi HTS721010G9SA00, FwRev=MCZOC10H, SerialNo=MPCZN7Y0H7E5VL |
65 |
> | Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } |
66 |
> | RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4 |
67 |
> | BuffType=DualPortCache, BuffSize=7538kB, MaxMultSect=16, MultSect=16 |
68 |
> | CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=195371568 |
69 |
> | IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120} |
70 |
> | PIO modes: pio0 pio1 pio2 pio3 pio4 |
71 |
> | DMA modes: mdma0 mdma1 mdma2 |
72 |
> | UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 |
73 |
> | AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled |
74 |
> | Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1: |
75 |
> | ATA/ATAPI-2,3,4,5,6,7 |
76 |
> | |
77 |
> | * signifies the current active mode |
78 |
> |
79 |
> `---- |
80 |
> |
81 |
> What do I have to do, so that the drive is fast in kernel 2.6.22 as |
82 |
> well? |
83 |
> |
84 |
> I'm booting the 2.6.22 kernel with this entry in grub menu.lst: |
85 |
> |
86 |
> ,----[ kernel 2.6.22 ] |
87 |
> |
88 |
> | title Gentoo GNU/Linux (zuletzt gebauter Kernel mit hda) |
89 |
> | root (hd0,2) |
90 |
> | kernel /vmlinuz root=/dev/hda6 lapic libata.atapi_enabled=1 |
91 |
> | combined_mode=libata |
92 |
> |
93 |
> `---- |
94 |
> |
95 |
> Kernel 2.6.21 is started with the following entry in grub: |
96 |
> |
97 |
> ,----[ kernel 2.6.21 ] |
98 |
> |
99 |
> | title Gentoo GNU/Linux (vorletzter gebauter Kernel) |
100 |
> | root (hd0,2) |
101 |
> | kernel /vmlinuz.old root=/dev/sda6 lapic libata.atapi_enabled=1 |
102 |
> | combined_mode=libata |
103 |
> |
104 |
> `---- |
105 |
|
106 |
I had the same problem on my laptop. You have to deactivate generic drivers in |
107 |
your kernel. (Stuff like Generic ATA Support) |