MIME-Version: 1.0 From: Mail Delivery System To: ragh_avan@rediffmail.com Subject: Mail delivery failed: returning message to sender Message-Id: This message was created automatically by mail delivery software (Exim). A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: lists-mtd@lists.infradead.org unknown local-part "lists-mtd" in domain "lists.infradead.org" ------ This is a copy of the message, including all the headers. ------ Return-path: Received: from webmail31.rediffmail.com ([202.54.124.130] helo=rediffmail.com) by pentafluge.infradead.org with smtp (Exim 3.22 #1 (Red Hat Linux)) id 18NvQO-0003sv-00 for ; Mon, 16 Dec 2002 13:36:48 +0000 Received: (qmail 2799 invoked by uid 510); 16 Dec 2002 14:06:31 -0000 Date: 16 Dec 2002 14:06:31 -0000 Message-ID: <20021216140631.2798.qmail@webmail31.rediffmail.com> Received: from unknown (164.164.83.140) by rediffmail.com via HTTP; 16 dec 2002 14:06:31 -0000 MIME-Version: 1.0 From: "Pichai Raghavan" Reply-To: "Pichai Raghavan" To: lists-mtd@lists.infradead.org Subject: AMD CFI driver problem Content-type: text/plain; format=flowed Content-Disposition: inline Hi All, I am using the 2.4.2 MTD driver code on my board that has AMD flash. I am noticing a bug in the write code. AMD flash driver makes use of unlock bypass mode for doing bulk write; when issuing the start and end of the unlock bypass commands;it does not check if the flash state is READY.(function cfi_amdstd_write() in cfi_cmdset_0002.c) In the meanwhile if the flash driver is doing an erase or write in the context of another process and has got scheduled out, then the flash gets into a unknown state. This seems to be causing a problem when write to multiple partitions are written. Has this problem been fixed in later kernels? (Had a glance at 2.4.17 code and there also the same code is there) Thanks Raghav