On Thu, Oct 19, 2006 at 03:12:49PM +0530, Pramod P K wrote: > Date: Thu, 19 Oct 2006 15:12:49 +0530 > From: "Pramod P K" <pra.engr@xxxxxxxxx> > To: linux-mtd@xxxxxxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxx > Subject: OOPS with JFFS2, MIPS > Content-Type: multipart/alternative; > boundary="----=_Part_217232_6585938.1161250969461" > > Iam using MIPS, Big Endian, with AMD/Fujitsu Spansion CFI flash. > > I have Rootfs(jffs2) in flash, Linux-2.6.15 in RAM. Trying to mount Rootfs > (jffs2). but gives OOPS, and then kernel panic !! > I have traced the disassembled part of it. Got the location of OOPS but dont > know why > > Please .. help me out. > > > MSP flash device "flash0": 0x00800000 at 0x1f800000 > flash0: Found 1 x16 devices at 0x0 in 8-bit bank > Amd/Fujitsu Extended Query Table at 0x0040 > Using buffer write method > flash0: CFI does not contain boot bank location. Assuming top. > number of CFI chips: 1 > cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness. > Creating 6 MTD partitions on "flash0": > 0x00480000-0x007f0000 : " General partition" > mtd: Giving out device 0 to General partition > 0x00400000-0x00470000 : " pmon" > mtd: Giving out device 1 to pmon > 0x00470000-0x00480000 : " pmon script" > mtd: Giving out device 2 to pmon script > 0x00010000-0x00400000 : " Linux" > mtd: Giving out device 3 to Linux > 0x007f0000-0x00800000 : " Copyprotected space end" > mtd: Giving out device 4 to Copyprotected space end > 0x00000000-0x00010000 : " Copyprotected space start" > mtd: Giving out device 5 to Copyprotected space start > MSP flash device "flash1": 0x00bf0000 at 0x1e000000 > flash1: Found 1 x16 devices at 0x0 in 8-bit bank > Amd/Fujitsu Extended Query Table at 0x0040 > Using buffer write method > flash1: CFI does not contain boot bank location. Assuming top. > number of CFI chips: 1 > cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness. > Creating 1 MTD partitions on "flash1": > 0x00000000-0x00bf0000 : " Root Filesystem jffs2" > mtd: Giving out device 6 to Root Filesystem jffs2 > > ........... > .......... > <skipped some statements here> > .......... > .......... > > CPU 0 Unable to handle kernel paging request at virtual address 00000000, > epc == 80121f30, ra == 80121fe0 > Oops[#1]: > Cpu 0 > $ 0 : 00000000 00000000 00000003 00000000 > $ 4 : 80490554 00000003 00000001 00000000 > $ 8 : ffffffff 87e02488 00000000 00000008 > $12 : 8048bb80 87e02480 ffffffff 00000010 > $16 : 00000001 0000fff8 00000001 80490554 > $20 : 00000000 00000000 00000003 80490500 > $24 : 00000000 80298d08 > $28 : 8048a000 8048ba98 8048ba98 80121fe0 > Hi : 00000000 > Lo : 000000bf > epc : 80121f30 __wake_up_common+0x44/0xb8 Not tainted > ra : 80121fe0 __wake_up+0x3c/0x98 A good old NULL pointer dereferenced by a generic kernel function which almost certainly itself is not the culprit, so probably was passed bad arguments. Ralf
