From: Alexei Takaseev <taf@altlinux.ru>
To: ALT Linux Sisyphus discussion list <sisyphus@altlinux.ru>
Subject: Re: [sisyphus] Re: /dev/cdrom cries in pain
Date: Mon, 31 Jan 2005 00:22:14 +0800
Message-ID: <20050131002214.2d7719db.taf@altlinux.ru> (raw)
In-Reply-To: <20050130152826.GA6334@lks.home>
On Sun, 30 Jan 2005 18:28:26 +0300
"Konstantin A. Lepikhov" <lakostis@anti-leasure.ru> wrote:
> > > > А какой тогда кошерный метод записи? Пробовал записывать через
> > > > устройство dev=ATAPI:/dev/hdd (ATAPI:0,1,0), запись идет, ничего
> > > > не зависает, но потом таким образом записаный диск на этом же
> > > > приводе читается со скоростью 100-200 кбайт/сек. На соседнем
> > > > простом CD диск вообще не читается. Привод NEC-2510A.
> > > самый правильный - dev=/dev/hdd и никаких ATAPI :)
> >
> > Пробовал. С тем же результатом - низкая скорость чтения на том же
> > приводе и полная нечитаемость на другом приводе.
> показывайте лог cdrecord и что в это время в messages пишется. Также
> интересно знать настройки DMA для этого привода.
Лог cdrecord:
=======================================================================
Cdrecord-Clone 2.01a37 (i586-alt-linux-gnu) Copyright (C) 1995-2004
JЖrg Schilling scsidev: '/dev/hdd'
devname: '/dev/hdd'
scsibus: -2 target: -2 lun: -2
Warning: Open by 'devname' is unintentional and not supported.
Linux sg driver version: 3.5.27
cdrecord: Warning: Linux kernel version is 2.6.10
cdrecord: Enabling compatibility hack!
Using libscg version 'schily-0.8'.
Device type : Removable CD-ROM
Version : 0
Response Format: 2
Capabilities :
Vendor_info : '_NEC '
Identifikation : 'DVD_RW ND-2510A '
Revision : '2.05'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
cdrecord: This version of cdrecord does not include DVD-R/DVD-RW support
code. cdrecord: If you need DVD-R/DVD-RW support, ask the Author for
cdrecord-ProDVD. cdrecord: Free test versions and free keys for personal
use are at ftp://ftp.berlios.de/pub/cdrecord/ProDVD/ Using generic
SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). Driver flags : MMC-3
SWABAUDIO BURNFREE Supported modes: TAO PACKET SAO SAO/R96R RAW/R96R
Starting to write CD/DVD at speed 10 in real BLANK mode for single
session. Last chance to quit, starting real write 0 seconds.
Operation starts. cdrecord: No write mode specified.
cdrecord: Asuming -tao mode.
cdrecord: Future versions of cdrecord may have different drive dependent
defaults. cdrecord: Continuing in 5 seconds...
Cdrecord-Clone 2.01a37 (i586-alt-linux-gnu) Copyright (C) 1995-2004 JЖrg
Schilling TOC Type: 3 = CD-ROM XA mode 2
scsidev: '/dev/hdd'
devname: '/dev/hdd'
scsibus: -2 target: -2 lun: -2
Warning: Open by 'devname' is unintentional and not supported.
Linux sg driver version: 3.5.27
cdrecord: Warning: Linux kernel version is 2.6.10
cdrecord: Enabling compatibility hack!
Using libscg version 'schily-0.8'.
SCSI buffer size: 64512
atapi: 1
Device type : Removable CD-ROM
Version : 0
Response Format: 2
Capabilities :
Vendor_info : '_NEC '
Identifikation : 'DVD_RW ND-2510A '
Revision : '2.05'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
Current: 0x000A
Profile: 0x002B
Profile: 0x001B
Profile: 0x001A
Profile: 0x0014
Profile: 0x0013
Profile: 0x0011
Profile: 0x0010
Profile: 0x000A (current)
Profile: 0x0009
Profile: 0x0008 (current)
cdrecord: This version of cdrecord does not include DVD-R/DVD-RW support
code. cdrecord: If you need DVD-R/DVD-RW support, ask the Author for
cdrecord-ProDVD. cdrecord: Free test versions and free keys for personal
use are at ftp://ftp.berlios.de/pub/cdrecord/ProDVD/ Using generic
SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). Driver flags : MMC-3
SWABAUDIO BURNFREE Supported modes: TAO PACKET SAO SAO/R96R RAW/R96R
Drive buf size : 1343488 = 1312 KB
FIFO size : 4194304 = 4096 KB
Track 01: data 327 MB
Total size: 375 MB (37:12.45) = 167434 sectors
Lout start: 375 MB (37:14/34) = 167434 sectors
Current Secsize: 2048
ATIP info from disk:
Indicated writing power: 3
Reference speed: 6
Is not unrestricted
Is erasable
Disk sub type: High speed Rewritable (CAV) media (1)
ATIP start of lead in: -11635 (97:26/65)
ATIP start of lead out: 359849 (79:59/74)
1T speed low: 4 1T speed high: 10
2T speed low: 4 2T speed high: 0 (reserved val 6)
power mult factor: 1 5
recommended erase/write power: 3
A1 values: 24 1A BC
A2 values: 26 B2 26
Disk type: Phase change
Manuf. index: 3
Manufacturer: CMC Magnetics Corporation
Blocks total: 359849 Blocks current: 359849 Blocks remaining: 192415
cdrecord: Warning: Linux kernel version is 2.6.10
cdrecord: Enabling compatibility hack!
cdrecord: Warning: Linux kernel version is 2.6.10
cdrecord: Enabling compatibility hack!
Starting to write CD/DVD at speed 10 in real TAO mode for multi session.
Last chance to quit, starting real write 0 seconds. Operation starts.
Waiting for reader process to fill input buffer ... input buffer ready.
BURN-Free is OFF.
Performing OPC...
Starting new track at sector: 0
Track 01: 327 of 327 MB written (fifo 100%) [buf 100%] 10.5x.
Track 01: Total bytes read/written: 342900736/342900736 (167432
sectors). Writing time: 230.300s
Average write speed 9.8x.
Min drive buffer fill was 100%
Fixating...
Fixating time: 37.382s
cdrecord: fifo had 5402 puts and 5402 gets.
cdrecord: fifo was 0 times empty and 5320 times full, min fill was 87%.
=====================================================================
То есть ничего особенного криминального не вижу. Во время записи и
чтения в логи абсолюто ничего не сыплется.
Вот что говорит hdparm:
[root@metamorph log]# hdparm /dev/hdd
/dev/hdd:
IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 256 (on)
HDIO_GETGEO failed: Invalid argument
[root@metamorph log]#
next prev parent reply other threads:[~2005-01-30 16:22 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-30 8:52 [sisyphus] " Alexandre Prokoudine
2005-01-30 9:23 ` Alexei Takaseev
2005-01-30 10:48 ` Albert R. Valiev
2005-01-30 12:53 ` Alexei Takaseev
2005-01-30 13:42 ` Albert R. Valiev
2005-01-30 13:51 ` [sisyphus] " Konstantin A. Lepikhov
2005-01-30 14:03 ` Alexei Takaseev
2005-01-30 15:28 ` Konstantin A. Lepikhov
2005-01-30 16:22 ` Alexei Takaseev [this message]
2005-01-31 17:27 ` Konstantin A. Lepikhov
2005-02-01 6:12 ` Alexei Takaseev
2005-01-30 21:52 ` Vitaly Lipatov
2005-01-31 19:16 ` Konstantin A. Lepikhov
2005-01-31 20:04 ` Vitaly Lipatov
2005-01-31 7:41 ` Alexey I. Froloff
2005-01-31 8:09 ` Vitaly Lipatov
2005-01-31 16:09 ` Konstantin A. Lepikhov
2005-01-30 15:36 ` [sisyphus] " Alexandre Prokoudine
2005-01-30 21:53 ` Vitaly Lipatov
2005-01-31 10:11 ` Epiphanov Sergei
2005-01-31 13:42 ` Andrei Bulava
2005-01-30 10:59 ` [sisyphus] " Konstantin A. Lepikhov
2005-01-31 9:04 ` [sisyphus] " Anton Farygin
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