(switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Fri, 3 Apr 2009 09:30:19 GMT bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=13001 > > Summary: PCI-DMA: Out of IOMMU space > Product: Platform Specific/Hardware > Version: 2.5 > Kernel Version: 2.6.29-gentoo > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: x86-64 > AssignedTo: platform_x86_64@xxxxxxxxxxxxxxxxxxxx > ReportedBy: optimusgd@xxxxxxxxx > Regression: Yes > > > Created an attachment (id=20789) > --> (http://bugzilla.kernel.org/attachment.cgi?id=20789) > hwreport generated info > > After some IO activity the "PCI-DMA: Out of IOMMU space" message appear. > 2.6.28-gentoo-r4 work ok, so it is regression. It is indeed a regression. > Dmesg fragments: > > > Apr 3 13:38:46 rngmhpamd sata_nv 0000:00:05.0: PCI-DMA: Out of IOMMU space for > 4096 bytes > Apr 3 13:38:46 rngmhpamd sata_nv 0000:00:05.0: PCI-DMA: Out of IOMMU space for > 4096 bytes > Apr 3 13:38:46 rngmhpamd ata1: EH in SWNCQ mode,QC:qc_active 0x1 sactive 0x1 > Apr 3 13:38:46 rngmhpamd ata1: SWNCQ:qc_active 0x0 defer_bits 0x0 > last_issue_tag 0xfafbfcfd > Apr 3 13:38:46 rngmhpamd dhfis 0x0 dmafis 0x0 sdbfis 0x0 > Apr 3 13:38:46 rngmhpamd ata1: ATA_REG 0x50 ERR_REG 0x0 > Apr 3 13:38:46 rngmhpamd ata1: tag : dhfis dmafis sdbfis sacitve > Apr 3 13:38:46 rngmhpamd ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action > 0x6 > Apr 3 13:38:46 rngmhpamd ata1.00: cmd 60/08:00:00:00:00/00:00:00:00:00/40 tag > 0 ncq 4096 in > Apr 3 13:38:46 rngmhpamd res 50/00:00:00:00:00/00:45:00:00:00/a0 Emask 0x40 > (internal error) > Apr 3 13:38:46 rngmhpamd ata1.00: status: { DRDY } > Apr 3 13:38:46 rngmhpamd ata1: hard resetting link Are these scary-looking messages also present in 2.6.28? If so, perhaps the ata code is leaking DMA memory on the error-handling path? > Apr 3 13:38:47 rngmhpamd ata1: SATA link up 3.0 Gbps (SStatus 123 SControl > 300) > Apr 3 13:38:47 rngmhpamd ata1.00: configured for UDMA/100 > Apr 3 13:38:47 rngmhpamd ata1: EH complete > Apr 3 13:38:47 rngmhpamd sd 1:0:0:0: [sdb] 488397168 512-byte hardware > sectors: (250 GB/232 GiB) > Apr 3 13:38:47 rngmhpamd sd 1:0:0:0: [sdb] Write Protect is off > Apr 3 13:38:47 rngmhpamd sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 > Apr 3 13:38:47 rngmhpamd sd 1:0:0:0: [sdb] Write cache: enabled, read cache: > enabled, doesn't support DPO or FUA > Apr 3 13:38:47 rngmhpamd sd 1:0:0:0: [sdb] 488397168 512-byte hardware > sectors: (250 GB/232 GiB) > Apr 3 13:38:47 rngmhpamd sd 1:0:0:0: [sdb] Write Protect is off > Apr 3 13:38:47 rngmhpamd sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00 > Apr 3 13:38:47 rngmhpamd sd 1:0:0:0: [sdb] Write cache: enabled, read cache: > enabled, doesn't support DPO or FUA > > And > > Mar 31 20:56:18 rngmhpamd ehci_hcd 0000:00:02.1: PCI-DMA: Out of IOMMU space > for 4608 bytes > Mar 31 20:56:18 rngmhpamd ehci_hcd 0000:00:02.1: PCI-DMA: Out of IOMMU space > for 69632 bytes > Mar 31 20:56:48 rngmhpamd usb 1-4: reset high speed USB device using ehci_hcd > and address 8 > Mar 31 20:56:48 rngmhpamd ehci_hcd 0000:00:02.1: PCI-DMA: Out of IOMMU space > for 11776 bytes > Mar 31 20:56:48 rngmhpamd ehci_hcd 0000:00:02.1: PCI-DMA: Out of IOMMU space > for 69632 bytes > Mar 31 20:57:19 rngmhpamd usb 1-4: reset high speed USB device using ehci_hcd > and address 8 > Mar 31 20:57:19 rngmhpamd ehci_hcd 0000:00:02.1: PCI-DMA: Out of IOMMU space > for 11776 bytes > Mar 31 20:57:19 rngmhpamd ehci_hcd 0000:00:02.1: PCI-DMA: Out of IOMMU space > for 69632 bytes > Mar 31 20:57:50 rngmhpamd usb 1-4: reset high speed USB device using ehci_hcd > and address 8 > Mar 31 20:57:50 rngmhpamd ehci_hcd 0000:00:02.1: PCI-DMA: Out of IOMMU space > for 11776 bytes > Mar 31 20:57:50 rngmhpamd ehci_hcd 0000:00:02.1: PCI-DMA: Out of IOMMU space > for 69632 bytes > Mar 31 20:58:21 rngmhpamd usb 1-4: reset high speed USB device using ehci_hcd > and address 8 > Mar 31 20:58:21 rngmhpamd ehci_hcd 0000:00:02.1: PCI-DMA: Out of IOMMU space > for 11776 bytes > Mar 31 20:58:21 rngmhpamd ehci_hcd 0000:00:02.1: PCI-DMA: Out of IOMMU space > for 69632 bytes > Mar 31 20:58:52 rngmhpamd usb 1-4: reset high speed USB device using ehci_hcd > and address 8 > Mar 31 20:58:52 rngmhpamd ehci_hcd 0000:00:02.1: PCI-DMA: Out of IOMMU space > for 11776 bytes > Mar 31 20:58:52 rngmhpamd ehci_hcd 0000:00:02.1: PCI-DMA: Out of IOMMU space > for 69632 bytes > Mar 31 20:59:01 rngmhpamd sd 8:0:0:0: [sdc] Unhandled error code > Mar 31 20:59:01 rngmhpamd sd 8:0:0:0: [sdc] Result: hostbyte=0x07 > driverbyte=0x00 > Mar 31 20:59:01 rngmhpamd end_request: I/O error, dev sdc, sector 1137 > Mar 31 20:59:01 rngmhpamd __ratelimit: 246 callbacks suppressed Do we have any debugging option for dumping the current PCI DMA allocations, find out where it has all gone? -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
