Bug 81121
| Summary: | WARNING: CPU: 0 PID: 0 at /build/buildd/linux-3.13.0/drivers/iommu/dmar.c:488 warn_invalid_dmar+0x7e/0x90() | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Cristian Aravena Romero (caravena) |
| Component: | Other | Assignee: | drivers_other |
| Status: | RESOLVED WILL_NOT_FIX | ||
| Severity: | normal | CC: | alan |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 3.13.11.4 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
dmesg 3.13.11.4
lspci -vvnn |
||
Created attachment 144261 [details]
lspci -vvnn
"Your BIOS is broken; DMAR reported at address 0!" as far as I can see this is not a Linux bug. You may find enabling the IOMMU in the BIOS makes the BIOS report something sensible |
Created attachment 144251 [details] dmesg 3.13.11.4 [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: CPU: 0 PID: 0 at /build/buildd/linux-3.13.0/drivers/iommu/dmar.c:488 warn_invalid_dmar+0x7e/0x90() [ 0.000000] Your BIOS is broken; DMAR reported at address 0! [ 0.000000] BIOS vendor: Insyde; Ver: F.24; Product Version: 0882100000305E00000610100 [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.13.0-32-generic #57-Ubuntu [ 0.000000] Hardware name: Hewlett-Packard HP Pavilion 14 Notebook PC/2165, BIOS F.24 02/13/2014 [ 0.000000] 000000000000000b ffffffff81c01de8 ffffffff8171bcb4 ffffffff81c01e30 [ 0.000000] ffffffff81c01e20 ffffffff810676cd ffffffff81fde008 ffffffff81fde048 [ 0.000000] 0000000000000000 ffffffff81de12c0 ffffffff81c01fb0 ffffffff81c01e80 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff8171bcb4>] dump_stack+0x45/0x56 [ 0.000000] [<ffffffff810676cd>] warn_slowpath_common+0x7d/0xa0 [ 0.000000] [<ffffffff81067784>] warn_slowpath_fmt_taint+0x44/0x50 [ 0.000000] [<ffffffff81d502c4>] ? early_ioremap+0x13/0x15 [ 0.000000] [<ffffffff81d45ee6>] ? __acpi_map_table+0x13/0x18 [ 0.000000] [<ffffffff815f2bae>] warn_invalid_dmar+0x7e/0x90 [ 0.000000] [<ffffffff81d8ab6e>] check_zero_address+0x68/0xf4 [ 0.000000] [<ffffffff81d8ac0f>] detect_intel_iommu+0x15/0xae [ 0.000000] [<ffffffff81d3ffb5>] pci_iommu_alloc+0x4a/0x6c [ 0.000000] [<ffffffff81d4fc61>] mem_init+0x17/0x9c [ 0.000000] [<ffffffff81d35d3a>] start_kernel+0x202/0x443 [ 0.000000] [<ffffffff81d35941>] ? repair_env_string+0x5c/0x5c [ 0.000000] [<ffffffff81d35120>] ? early_idt_handlers+0x120/0x120 [ 0.000000] [<ffffffff81d355ee>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff81d35733>] x86_64_start_kernel+0x143/0x152 [ 0.000000] ---[ end trace 488581fbeae80768 ]---