Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 17 Jul 2002 13:08:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 17 Jul 2002 13:08:57 -0400 Received: from daimi.au.dk ([130.225.16.1]:23458 "EHLO daimi.au.dk") by vger.kernel.org with ESMTP id ; Wed, 17 Jul 2002 13:08:56 -0400 Message-ID: <3D35A554.5E7BBF59@daimi.au.dk> Date: Wed, 17 Jul 2002 19:11:48 +0200 From: Kasper Dupont Organization: daimi.au.dk X-Mailer: Mozilla 4.76 [en] (X11; U; Linux 2.4.9-31smp i686) X-Accept-Language: en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org CC: Andre Hedrick Subject: Re: Linux 2.4.19-rc1-ac5 References: <200207152148.g6FLm7Q24750@devserv.devel.redhat.com> <3D340775.7F7AAFB9@daimi.au.dk> Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5054 Lines: 120 Kasper Dupont wrote: > > DMA is still broken on the ALI15X3 IDE controller. > Does anybody know what the problem could be? The > problem was introduced by this patch: > > http://www.linuxdiskcert.org/ide-2.4.19-p8-ac1.all.convert.10.patch.bz2 > http://www.linuxdiskcert.org/ide-2.4.19-p7.all.convert.10.patch.bz2 > > But it is a 700K patch, without knowing a little > more about what is going on I'd have a hard time > finding the problem in that patch. > > Symptoms are: > - DMA does not get enabled at boot. > - Manually switching on DMA will cause all disk > access to hang, the IDE led stays light until > IDE is initialized at next boot. I tried adding some debug output in alim15x3.c. In the start and end of every function (except from ali15x3_dmaproc) I print the name of the function. Bellow is a diff between 2.4.19-pre8-ac1 with and without the patch. ali15x3_config_drive_for_dma does get called in both cases, but with the patch it does not call config_chipset_for_dma. What can the reason for that be? --- file1.log Wed Jul 17 17:55:13 2002 +++ file2.log Wed Jul 17 17:56:48 2002 @@ -1,4 +1,4 @@ -Linux version 2.4.19-pre8-ac1 (kasperd@eddie) (gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-98)) #5 Wed Jul 17 17:46:00 CEST 2002 +Linux version 2.4.19-pre8-ac1 (kasperd@eddie) (gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-98)) #6 Wed Jul 17 17:46:06 CEST 2002 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) @@ -10,12 +10,12 @@ zone(0): 4096 pages. zone(1): 45056 pages. zone(2): 0 pages. -Kernel command line: BOOT_IMAGE=2419pre8ac1 ro BOOT_FILE=/boot/vmlinuz-2.4.19-pre8-ac1 root=/dev/hda5 console=tty1 init=/bin/sh console=ttyS1 +Kernel command line: BOOT_IMAGE=2419pre8ac1p ro BOOT_FILE=/boot/vmlinuz-2.4.19-pre8-ac1-patch root=/dev/hda5 console=tty1 init=/bin/sh console=ttyS1 Initializing CPU#0 Detected 350.803 MHz processor. Console: colour VGA+ 80x25 Calibrating delay loop... 699.59 BogoMIPS -Memory: 191328k/196608k available (1427k kernel code, 4892k reserved, 405k data, 260k init, 0k highmem) +Memory: 191332k/196608k available (1431k kernel code, 4888k reserved, 407k data, 256k init, 0k highmem) Dentry cache hash table entries: 32768 (order: 6, 262144 bytes) Inode cache hash table entries: 16384 (order: 5, 131072 bytes) Mount cache hash table entries: 4096 (order: 3, 32768 bytes) @@ -49,6 +49,7 @@ block: 368 slots per queue, batch=92 Uniform Multi-Platform E-IDE driver Revision: 6.31 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx +Enter: fixup_device_ali15x3() ALI15X3: IDE controller on PCI bus 00 dev 78 PCI: Assigned IRQ 11 for device 00:0f.0 ALI15X3: chipset revision 32 @@ -66,6 +67,7 @@ Leave: ide_dmacapable_ali15x3() Enter: ide_init_ali15x3() Leave: ide_init_ali15x3() +Leave: fixup_device_ali15x3() hda: IC35L040AVER07-0, ATA DISK drive hdb: CREATIVEDVD-ROM DVD2240E 03/18/98, ATAPI CD/DVD-ROM drive Enter: ali15x3_tune_drive() @@ -82,15 +84,15 @@ ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide1 at 0x170-0x177,0x376 on irq 15 Enter: ali15x3_config_drive_for_dma() -Enter: ali15x3_can_ultra() -Enter: config_chipset_for_dma() -Enter: ali15x3_tune_chipset() -hda: 66055248 sectors (33820 MB) w/1916KiB Cache, CHS=4111/255/63, (U)DMA +Enter: ali15x3_tune_drive() +Leave: ali15x3_tune_drive() +hda: host protected area => 1 +hda: 66055248 sectors (33820 MB) w/1916KiB Cache, CHS=4111/255/63 Enter: ali15x3_config_drive_for_dma() -Enter: ali15x3_can_ultra() -Enter: config_chipset_for_dma() -Enter: ali15x3_tune_chipset() -hdd: 33022080 sectors (16907 MB) w/462KiB Cache, CHS=32760/16/63, (U)DMA +Enter: ali15x3_tune_drive() +Leave: ali15x3_tune_drive() +hdd: host protected area => 1 +hdd: 33022080 sectors (16907 MB) w/462KiB Cache, CHS=32760/16/63 Partition check: hda: hda1 hda2 hda3 hda4 < hda5 hda6 hda7 hda8 hda9 > hdd: [PTBL] [2055/255/63] hdd1 hdd2 hdd4 < hdd5 hdd6 hdd7 hdd8 > @@ -112,15 +114,15 @@ kjournald starting. Commit interval 5 seconds EXT3-fs: mounted filesystem with ordered data mode. VFS: Mounted root (ext3 filesystem) readonly. -Freeing unused kernel memory: 260k freed +Freeing unused kernel memory: 256k freed [root:console:~] t -Linux (none) 2.4.19-pre8-ac1 #5 Wed Jul 17 17:46:00 CEST 2002 i586 unknown +Linux (none) 2.4.19-pre8-ac1 #6 Wed Jul 17 17:46:06 CEST 2002 i586 unknown /dev/hda: multcount = 0 (off) I/O support = 0 (default 16-bit) unmaskirq = 0 (off) - using_dma = 1 (on) + using_dma = 0 (off) keepsettings = 0 (off) nowerr = 0 (off) readonly = 0 (off) -- Kasper Dupont -- der bruger for meget tid p? usenet. For sending spam use mailto:razrep@daimi.au.dk or mailto:mcxumhvenwblvtl@skrammel.yaboo.dk - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/