From: Andrew Morton <akpm@digeo.com>
To: "Justin T. Gibbs" <gibbs@scsiguy.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>,
Rik van Riel <riel@conectiva.com.br>,
Tomas Szepe <szepe@pinerecords.com>,
Marcelo Tosatti <marcelo@conectiva.com.br>,
Samuel Flory <sflory@rackable.com>,
Janet Morgan <janetmor@us.ibm.com>,
linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [PATCH] aic7xxx bouncing over 4G
Date: Sat, 28 Dec 2002 12:18:39 -0800 [thread overview]
Message-ID: <3E0E071F.F6819548@digeo.com> (raw)
In-Reply-To: 712898112.1041103010@aslan.scsiguy.com
"Justin T. Gibbs" wrote:
>
> > So far, the only bug report I have is from Andrew Morton proving that it
> > still doesn't get it's bounce buffers right.
>
> That hasn't applied since 6.2.10 or so. 2.5.X is still using 6.2.4.
>
2.5.53 is using 6.2.24, and it is bounce buffering highmem I/O. 6.2.4
was OK in this regard.
$ dd if=/dev/zero of=/mnt/sde5/foo bs=1M count=4000
$ oprofpp -l -i /boot/vmlinux
...
c0133010 72 0.175854 bad_range
c0134c44 74 0.180739 __set_page_dirty_nobuffers
c0135a74 79 0.192951 poison_obj
c0136e90 86 0.210048 kmem_cache_alloc
c0196f4c 88 0.214933 ext2_get_branch
c01333a4 89 0.217375 __rmqueue
c01304a4 90 0.219818 unlock_page
c0133658 92 0.224703 buffered_rmqueue
c0130294 95 0.23203 add_to_page_cache
c0131a38 99 0.2418 generic_file_aio_write_nolock
c014ea54 110 0.268666 __find_get_block
c01972d8 136 0.332169 ext2_get_block
c0135aa4 141 0.344381 check_poison_obj
c013b174 1517 3.70515 __blk_queue_bounce <<<<<
c01e9548 2904 7.09279 __copy_from_user
c01089f8 33209 81.1103 poll_idle
Linux version 2.5.53 (akpm@mnm) (gcc version 2.95.3 20010315 (release)) #178 SMP Sat Dec 28 12:09:10 PST 2002
3264MB HIGHMEM available.
896MB LOWMEM available.
...
highmem bounce pool size: 64 pages
...
aic7xxx: PCI Device 0:10:0 failed memory mapped test. Using PIO.
ahc_pci:0:10:0: Host Adapter Bios disabled. Using default SCSI device parameters
scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.24
<Adaptec 29160 Ultra160 SCSI adapter>
aic7892: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
(scsi0:A:0): 40.000MB/s transfers (20.000MHz, offset 31, 16bit)
Vendor: QUANTUM Model: ATLAS IV 9 SCA Rev: 0B0B
Type: Direct-Access ANSI SCSI revision: 03
(scsi0:A:1): 40.000MB/s transfers (20.000MHz, offset 31, 16bit)
Vendor: QUANTUM Model: ATLAS 10K 9SCA Rev: UC81
Type: Direct-Access ANSI SCSI revision: 03
(scsi0:A:2): 40.000MB/s transfers (20.000MHz, offset 15, 16bit)
Vendor: SEAGATE Model: ST19101W Rev: 0014
Type: Direct-Access ANSI SCSI revision: 02
(scsi0:A:4): 40.000MB/s transfers (20.000MHz, offset 31, 16bit)
Vendor: QUANTUM Model: QM39100TD-SCA Rev: N1B0
Type: Direct-Access ANSI SCSI revision: 02
scsi scan: host 0 channel 0 id 4 lun 0 identifier too long, length 60, max 50. Device might be improperly identified.
(scsi0:A:5): 40.000MB/s transfers (20.000MHz, offset 63, 16bit)
Vendor: FUJITSU Model: MAF3364L SUN36G Rev: 1213
Type: Direct-Access ANSI SCSI revision: 02
Vendor: ESG-SHV Model: SCA HSBP M4 Rev: 0.63
Type: Processor ANSI SCSI revision: 02
scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.24
<Adaptec aic7880 Ultra SCSI adapter>
aic7880: Ultra Wide Channel A, SCSI Id=7, 16/253 SCBs
(scsi1:A:0): 40.000MB/s transfers (20.000MHz, offset 8, 16bit)
Vendor: QUANTUM Model: ATLAS 10K 9SCA Rev: UC81
Type: Direct-Access ANSI SCSI revision: 03
(scsi1:A:1): 40.000MB/s transfers (20.000MHz, offset 8, 16bit)
Vendor: QUANTUM Model: ATLAS 10K 9SCA Rev: UCH0
Type: Direct-Access ANSI SCSI revision: 03
(scsi1:A:2): 40.000MB/s transfers (20.000MHz, offset 8, 16bit)
Vendor: QUANTUM Model: ATLAS 10K 9SCA Rev: UC81
Type: Direct-Access ANSI SCSI revision: 03
(scsi1:A:4): 40.000MB/s transfers (20.000MHz, offset 8, 16bit)
Vendor: QUANTUM Model: ATLAS 10K 9SCA Rev: UCP0
Type: Direct-Access ANSI SCSI revision: 03
(scsi1:A:5): 40.000MB/s transfers (20.000MHz, offset 8, 16bit)
Vendor: FUJITSU Model: MAF3364L SUN36G Rev: 1213
Type: Direct-Access ANSI SCSI revision: 02
Vendor: ESG-SHV Model: SCA HSBP M4 Rev: 0.63
Type: Processor ANSI SCSI revision: 02
SCSI device sda: drive cache: write back
SCSI device sda: 17942584 512-byte hdwr sectors (9187 MB)
sda: sda1
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sdb: drive cache: write back
SCSI device sdb: 17938986 512-byte hdwr sectors (9185 MB)
sdb: sdb1
Attached scsi disk sdb at scsi0, channel 0, id 1, lun 0
SCSI device sdc: drive cache: write back
SCSI device sdc: 17783240 512-byte hdwr sectors (9105 MB)
sdc: sdc1
Attached scsi disk sdc at scsi0, channel 0, id 2, lun 0
SCSI device sdd: drive cache: write back
SCSI device sdd: 17783249 512-byte hdwr sectors (9105 MB)
sdd: sdd1 < sdd5 >
Attached scsi disk sdd at scsi0, channel 0, id 4, lun 0
SCSI device sde: drive cache: write through
SCSI device sde: 71132959 512-byte hdwr sectors (36420 MB)
sde: sde1 < sde5 sde6 sde7 >
Attached scsi disk sde at scsi0, channel 0, id 5, lun 0
SCSI device sdf: drive cache: write back
SCSI device sdf: 17938986 512-byte hdwr sectors (9185 MB)
sdf: sdf1
Attached scsi disk sdf at scsi1, channel 0, id 0, lun 0
SCSI device sdg: drive cache: write back
SCSI device sdg: 17938986 512-byte hdwr sectors (9185 MB)
sdg: sdg1
Attached scsi disk sdg at scsi1, channel 0, id 1, lun 0
SCSI device sdh: drive cache: write back
SCSI device sdh: 17938986 512-byte hdwr sectors (9185 MB)
sdh: sdh1
Attached scsi disk sdh at scsi1, channel 0, id 2, lun 0
SCSI device sdi: drive cache: write back
SCSI device sdi: 17938986 512-byte hdwr sectors (9185 MB)
sdi: sdi1 < sdi5 sdi6 >
Attached scsi disk sdi at scsi1, channel 0, id 4, lun 0
SCSI device sdj: drive cache: write through
SCSI device sdj: 71132959 512-byte hdwr sectors (36420 MB)
sdj: sdj1 < sdj5 sdj6 >
Attached scsi disk sdj at scsi1, channel 0, id 5, lun 0
next prev parent reply other threads:[~2002-12-28 20:18 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-21 0:12 [PATCH] aic7xxx bouncing over 4G Janet Morgan
2002-12-21 0:23 ` Justin T. Gibbs
2002-12-21 0:29 ` William Lee Irwin III
2002-12-21 0:59 ` Justin T. Gibbs
2002-12-21 1:35 ` William Lee Irwin III
2002-12-21 1:59 ` Justin T. Gibbs
2002-12-21 4:10 ` David S. Miller
2002-12-21 15:19 ` Justin T. Gibbs
2002-12-21 21:41 ` David S. Miller
2002-12-21 7:10 ` Erik Andersen
2002-12-21 15:23 ` Justin T. Gibbs
2002-12-21 8:55 ` Christoph Hellwig
2002-12-21 15:30 ` Justin T. Gibbs
2002-12-21 17:45 ` Doug Ledford
2002-12-22 0:16 ` Linus Torvalds
2002-12-21 0:51 ` Samuel Flory
2002-12-28 5:32 ` Marcelo Tosatti
2002-12-28 9:16 ` Tomas Szepe
2002-12-28 13:33 ` Rik van Riel
2002-12-28 13:40 ` Tomas Szepe
2002-12-28 16:23 ` Tony Spinillo
2002-12-28 15:00 ` James Bottomley
2002-12-28 19:16 ` Justin T. Gibbs
2002-12-28 20:16 ` James Bottomley
2002-12-28 21:02 ` Justin T. Gibbs
2002-12-28 20:18 ` Andrew Morton [this message]
2002-12-28 20:50 ` Justin T. Gibbs
2002-12-28 22:24 ` James Bottomley
2002-12-28 22:31 ` Justin T. Gibbs
2002-12-28 22:46 ` Andrew Morton
2002-12-28 19:13 ` Justin T. Gibbs
2002-12-28 19:19 ` Rik van Riel
2002-12-28 19:42 ` Doug Ledford
2002-12-28 21:04 ` Willy Tarreau
2002-12-28 22:37 ` David Lang
2002-12-29 12:54 ` Arjan van de Ven
2003-01-03 15:28 ` Justin T. Gibbs
2003-01-06 1:40 ` aic79xx bug? my stupidity? Roberto Peon
2003-01-06 1:46 ` Justin T. Gibbs
2002-12-30 21:06 ` [PATCH] aic7xxx bouncing over 4G Samuel Flory
2002-12-28 9:50 ` Christoph Hellwig
2002-12-30 1:23 ` Alan Cox
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