Hi all,
It worked with this chip some time ago (a year). Erasing with -E also fails but the next one will succeed. If I write back content again and do it all again I can reproduce this. It seems like a timing issue.
Log attached.
Changing probe_timing to 10000 is not helping. Tried with latest flashrom, older ended with SIGSEGV.
Any clue?
Thanks Rudolf
Hi Rudolf,
Am 30.10.2011 23:36 schrieb Rudolf Marek:
It worked with this chip some time ago (a year). Erasing with -E also fails but the next one will succeed. If I write back content again and do it all again I can reproduce this. It seems like a timing issue.
Log attached.
Changing probe_timing to 10000 is not helping. Tried with latest flashrom, older ended with SIGSEGV.
I expect flashrom from one year ago to show similar issues (but the error checking was worse back then, so it might not show up in all cases).
Any clue?
Yes, crappy flash chip. I'll explain below the log.
Thanks Rudolf
flashrom v0.9.4-r1457 on Linux 3.0.3 (x86_64), built with libpci 3.1.7, GCC 4.4.5 20100728 (prerelease), little endian flashrom is free software, get the source code at http://www.flashrom.org
Calibrating delay loop... OS timer resolution is 1 usecs, 899M loops per second, 10 myus = 10 us, 100 myus = 100 us, 1000 myus = 1001 us, 10000 myus = 10004 us, 4 myus = 4 us, OK. Initializing internal programmer Found candidate at: 00000500-00000510 Found coreboot table at 0x00000500. Found candidate at: 00000000-00000228 Found coreboot table at 0x00000000. coreboot table found at 0x1fffd000. coreboot header(24) checksum: aa66 table(552) checksum: c1b5 entries: 14 Vendor ID: ASUS, part ID: A8V-E SE DMI string system-manufacturer: "ASUS" DMI string system-product-name: "A8V-E SE" DMI string system-version: "Not Specified" DMI string baseboard-manufacturer: "" DMI string baseboard-product-name: "" DMI string baseboard-version: "" DMI string chassis-type: "Desktop" Found chipset "VIA VT8237" with PCI ID 1106:3227. Enabling flash write... OK. This chipset supports the following protocols: Non-SPI. [...] Found SST flash chip "SST49LF080A" (1024 kB, LPC). coreboot last image size (not ROM size) is 524288 bytes. Manufacturer: ASUS Mainboard ID: A8V-E SE This firmware image matches this mainboard. Reading old flash chip contents... done. Erasing and writing flash chip... Trying erase function 0... 0x000000-0x000fff:S, 0x001000-0x001fff:S, 0x002000-0x002fff:S, 0x003000-0x003fff:S, 0x004000-0x004fff:S, 0x005000-0x005fff:S, 0x006000-0x006fff:S, 0x007000-0x007fff:S, 0x008000-0x008fff:S, 0x009000-0x009fff:S, 0x00a000-0x00afff:S, 0x00b000-0x00bfff:S, 0x00c000-0x00cfff:S, 0x00d000-0x00dfff:S, 0x00e000-0x00efff:S, 0x00f000-0x00ffff:S, 0x010000-0x010fff:S, 0x011000-0x011fff:S, 0x012000-0x012fff:S, 0x013000-0x013fff:S, 0x014000-0x014fff:S, 0x015000-0x015fff:S, 0x016000-0x016fff:S, 0x017000-0x017fff:S, 0x018000-0x018fff:S, 0x019000-0x019fff:S, 0x01a000-0x01afff:S, 0x01b000-0x01bfff:S, 0x01c000-0x01cfff:S, 0x01d000-0x01dfff:S, 0x01e000-0x01efff:S, 0x01f000-0x01ffff:S, 0x020000-0x020fff:S, 0x021000-0x021fff:S, 0x022000-0x022fff:S, 0x023000-0x023fff:S, 0x024000-0x024fff:S, 0x025000-0x025fff:S, 0x026000-0x026fff:S, 0x027000-0x027fff:S, 0x028000-0x028fff:S, 0x029000-0x029fff:S, 0x02a000-0x02afff:S, 0x02b000-0x02bfff:S, 0x02c000-0x02cfff:S, 0x02d000-0x02dfff:S, 0x02e000-0x02efff:S, 0x02f000-0x02ffff:S, 0x030000-0x030fff:S, 0x031000-0x031fff:S, 0x032000-0x032fff:S, 0x033000-0x033fff:S, 0x034000-0x034fff:S, 0x035000-0x035fff:S, 0x036000-0x036fff:S, 0x037000-0x037fff:S, 0x038000-0x038fff:S, 0x039000-0x039fff:S, 0x03a000-0x03afff:S, 0x03b000-0x03bfff:S, 0x03c000-0x03cfff:S, 0x03d000-0x03dfff:S, 0x03e000-0x03efff:S, 0x03f000-0x03ffff:S, 0x040000-0x040fff:S, 0x041000-0x041fff:S, 0x042000-0x042fff:S, 0x043000-0x043fff:S, 0x044000-0x044fff:S, 0x045000-0x045fff:S, 0x046000-0x046fff:S, 0x047000-0x047fff:S, 0x048000-0x048fff:S, 0x049000-0x049fff:S, 0x04a000-0x04afff:S, 0x04b000-0x04bfff:S, 0x04c000-0x04cfff:S, 0x04d000-0x04dfff:S, 0x04e000-0x04efff:S, 0x04f000-0x04ffff:S, 0x050000-0x050fff:S, 0x051000-0x051fff:S, 0x052000-0x052fff:S, 0x053000-0x053fff:S, 0x054000-0x054fff:S, 0x055000-0x055fff:S, 0x056000-0x056fff:S, 0x057000-0x057fff:S, 0x058000-0x058fff:S, 0x059000-0x059fff:S, 0x05a000-0x05afff:S, 0x05b000-0x05bfff:S, 0x05c000-0x05cfff:S, 0x05d000-0x05dfff:S, 0x05e000-0x05efff:S, 0x05f000-0x05ffff:S, 0x060000-0x060fff:S, 0x061000-0x061fff:S, 0x062000-0x062fff:E, 0x063000-0x063fff:S, 0x064000-0x064fff:S, 0x065000-0x065fff:S, 0x066000-0x066fff:S, 0x067000-0x067fff:S, 0x068000-0x068fff:S, 0x069000-0x069fff:S, 0x06a000-0x06afff:S, 0x06b000-0x06bfff:E, 0x06c000-0x06cfff:S, 0x06d000-0x06dfff:S, 0x06e000-0x06efff:S, 0x06f000-0x06ffff:S, 0x070000-0x070fff:E, 0x071000-0x071fff:E, 0x072000-0x072fff:E, 0x073000-0x073fff:E, 0x074000-0x074fff:E, 0x075000-0x075fff:E, 0x076000-0x076fff:E, 0x077000-0x077fff:EERASE FAILED at 0x00077612! Expected=0xff, Read=0xdf, failed byte count from 0x00077000-0x00077fff: 0x1 ERASE FAILED! Reading current flash chip contents... done. Looking for another erase function. Trying erase function 1... 0x000000-0x00ffff:S, 0x010000-0x01ffff:EW, 0x020000-0x02ffff:EW, 0x030000-0x03ffff:S, 0x040000-0x04ffff:S, 0x050000-0x05ffff:E, 0x060000-0x06ffff:S, 0x070000-0x07ffff:EW, 0x080000-0x08ffff:EW, 0x090000-0x09ffff:EW, 0x0a0000-0x0affff:EW, 0x0b0000-0x0bffff:EERASE FAILED at 0x000b2f2c! Expected=0xff, Read=0x7f, failed byte count from 0x000b0000-0x000bffff: 0x1 ERASE FAILED! Looking for another erase function. No usable erase functions left. FAILED! Uh oh. Erase/write failed. Checking if anything changed. Your flash chip is in an unknown state.
You have two defective locations according to this log: 0x77612 and 0xb2f2c. This is a one-bit error in both cases, and automatically rerunning erase would fix it. We'd have to detect that one stuck bit in an erase operation is not a complete failure which forces the use of the next erase function, but rather something which can be fixed by rerunning the same erase command.
This is fixable, but it's a bit lower on my priority list and won't happen before hwseq is merged.
Regards, Carl-Daniel
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Carl-Daniel Hailfinger -
Rudolf Marek