From 926311fd7dabcd284a1e8a87a3e2bb5f929c0c60 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Mon, 11 Jan 2010 20:58:21 +0100 Subject: amd64_edac: Ensure index stays within bounds in amd64_get_scrub_rate Add a missing iterator variable thus fixing the conditional of the for-loop in amd64_get_scrub_rate(). Signed-off-by: Roel Kluin Signed-off-by: Borislav Petkov --- drivers/edac/amd64_edac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/edac') diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index c5facd9..000dc67 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -197,7 +197,7 @@ static int amd64_get_scrub_rate(struct mem_ctl_info *mci, u32 *bw) edac_printk(KERN_DEBUG, EDAC_MC, "pci-read, sdram scrub control value: %d \n", scrubval); - for (i = 0; ARRAY_SIZE(scrubrates); i++) { + for (i = 0; i < ARRAY_SIZE(scrubrates); i++) { if (scrubrates[i].scrubval == scrubval) { *bw = scrubrates[i].bandwidth; status = 0; -- cgit v1.1 From 118f3e1afd5534c15f9701f33514186cfc841a27 Mon Sep 17 00:00:00 2001 From: Tamas Vincze Date: Fri, 15 Jan 2010 17:01:10 -0800 Subject: edac: i5000_edac critical fix panic out of bounds EDAC MC0: INTERNAL ERROR: channel-b out of range (4 >= 4) Kernel panic - not syncing: EDAC MC0: Uncorrected Error (XEN) Domain 0 crashed: 'noreboot' set - not rebooting. This happens because FERR_NF_FBD bit 28 is not updated on i5000. Due to that, both bits 28 and 29 may be equal to one, returning channel = 3. As this value is invalid, EDAC core generates the panic. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=14568 Signed-off-by: Tamas Vincze Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Doug Thompson Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/edac/i5000_edac.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers/edac') diff --git a/drivers/edac/i5000_edac.c b/drivers/edac/i5000_edac.c index 77a9579..adc10a2 100644 --- a/drivers/edac/i5000_edac.c +++ b/drivers/edac/i5000_edac.c @@ -577,7 +577,13 @@ static void i5000_process_nonfatal_error_info(struct mem_ctl_info *mci, debugf0("\tUncorrected bits= 0x%x\n", ue_errors); branch = EXTRACT_FBDCHAN_INDX(info->ferr_nf_fbd); - channel = branch; + + /* + * According with i5000 datasheet, bit 28 has no significance + * for errors M4Err-M12Err and M17Err-M21Err, on FERR_NF_FBD + */ + channel = branch & 2; + bank = NREC_BANK(info->nrecmema); rank = NREC_RANK(info->nrecmema); rdwr = NREC_RDWR(info->nrecmema); -- cgit v1.1