2009/4/5 Данила Жукоцкий <optimusgd@xxxxxxxxx>: > 2009/4/4 Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>: >> >> (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 The bug report has a "dmesg" attachment but I wasn't able to find the "Out of IOMMU space" message in the dmesg. Can that be corrected? I was looking for IDE/SATA errors *before* the IOMMU errors. But I was surprised to find these bits: ... Kernel command line: mce=bootlog root=/dev/ram0 real_root=/dev/evms/root init=/linuxrc iommu=allowdac,merge,memaper=3 3w_9xxx.use_msi=1 snd-hda-intel.enable_msi=1 doevms quiet Initializing CPU#0 ... Your BIOS doesn't leave a aperture memory hole Please enable the IOMMU option in the BIOS setup This costs you 256 MB of RAM ... I'm not familiar with iommu= parameter nor the warning about the BIOS. Any comments on that? thanks, grant >>> 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? >> >> > > Upgrade to 2.6.29-gentoo-r1 (2.6.29.1), problem is still here, can > easyly trigger it. I boot with default apperture, 64mb, and while > write to usb-hdd get this: > > Apr 5 14:28:56 rngmhpamd ehci_hcd 0000:00:02.1: PCI-DMA: Out of IOMMU > space for 65536 bytes > Apr 5 14:28:56 rngmhpamd ehci_hcd 0000:00:02.1: PCI-DMA: Out of IOMMU > space for 65536 bytes > Apr 5 14:29:27 rngmhpamd usb 1-4: reset high speed USB device using > ehci_hcd and address 6 > -- > 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 > -- 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
