Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 24 Feb 2001 09:32:05 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 24 Feb 2001 09:31:55 -0500 Received: from netcore.fi ([193.94.160.1]:260 "EHLO netcore.fi") by vger.kernel.org with ESMTP id ; Sat, 24 Feb 2001 09:31:44 -0500 Date: Sat, 24 Feb 2001 16:31:42 +0200 (EET) From: Pekka Savola To: Subject: 2.2.19pre14 VP3 + Quantum: dma on hangs Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello all, Using 2.2.19pre14 with: * software raid * raid1 readbalancing * i2c * lm_sensors * ipsec My drives are as follows: hda: QUANTUM FIREBALLP AS20.5, 19595MB w/1902kB Cache, CHS=2498/255/63 hdc: QUANTUM FIREBALLP AS20.5, 19595MB w/1902kB Cache, CHS=39813/16/63 hdd: IBM-DTTA-350840, 8063MB w/467kB Cache, CHS=16383/16/63 hdb: ATAPI 4X CD-ROM drive, 256kB Cache [ Bios sees: HDA & HDC : udma5, HDD: udma2 ] And the mainboard related stuff in lspci: 00:00.0 Host bridge: VIA Technologies, Inc. VT82C598 [Apollo MVP3] (rev 04) 00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598 [Apollo MVP3 AGP] 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C586/A/B PCI-to-ISA [Apollo VP] (rev 47) 00:07.1 IDE interface: VIA Technologies, Inc. VT82C586 IDE [Apollo] (rev 06) 00:07.2 USB Controller: VIA Technologies, Inc. VT82C586B USB (rev 02) 00:07.3 Bridge: VIA Technologies, Inc. VT82C586B ACPI (rev 10) Now, if I turn on dma on hdd, and run hdparm benchmark, everything works fine. If I turn on dma with hdparm on hda or hdc, next disk activity will freeze the system completely. No keyboard interaction, not anything. Only reset helps. Also, if I disable UDMA in bios completely on hda and hdc, hdparm will work, but the speed is awful (only ~6 MB/s) even if DMA is enabled. The most relevant kernel settings are, I think: CONFIG_BLK_DEV_IDEDMA=y # CONFIG_BLK_DEV_OFFBOARD is not set CONFIG_IDEDMA_AUTO=y # CONFIG_BLK_DEV_OPTI621 is not set # CONFIG_BLK_DEV_ALI15X3 is not set # CONFIG_BLK_DEV_TRM290 is not set # CONFIG_BLK_DEV_NS87415 is not set CONFIG_BLK_DEV_VIA82C586=y # CONFIG_BLK_DEV_CMD646 is not set # CONFIG_BLK_DEV_CS5530 is not set # CONFIG_IDE_CHIPSETS is not set Any ideas? Please Cc: -- Pekka Savola "Tell me of difficulties surmounted, Netcore Oy not those you stumble over and fall" Systems. Networks. Security. -- Robert Jordan: A Crown of Swords - 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/