pcie: kernel log - BAR 15: no space for... BAR 15: failed to assign..
Hi all, After rebooting the system following messages are seen in dmesg. Not sure if these indicate a problem. Can some one look at these and confirm if this is problem or can be ignored ? Also any suggestions as to what would cause this? [ 1.084728] pci 0000:00:1c.0: BAR 15: no space for [mem size 0x00200000 64bit pref] [ 1.084813] pci 0000:00:1c.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref] [ 1.084890] pci 0000:00:1c.2: BAR 14: no space for [mem size 0x00200000] [ 1.084949] pci 0000:00:1c.2: BAR 14: failed to assign [mem size 0x00200000] [ 1.085037] pci 0000:00:1c.2: BAR 15: no space for [mem size 0x00200000 64bit pref] [ 1.085108] pci 0000:00:1c.2: BAR 15: failed to assign [mem size 0x00200000 64bit pref] [ 1.085199] pci 0000:00:1c.3: BAR 15: no space for [mem size 0x00200000 64bit pref] [ 1.085270] pci 0000:00:1c.3: BAR 15: failed to assign [mem size 0x00200000 64bit pref] [ 1.085343] pci 0000:00:1c.0: BAR 13: assigned [io 0x1000-0x1fff] [ 1.085403] pci 0000:00:1c.2: BAR 13: assigned [io 0x2000-0x2fff] [ 1.085470] pci 0000:00:1c.3: BAR 15: no space for [mem size 0x00200000 64bit pref] [ 1.085540] pci 0000:00:1c.3: BAR 15: failed to assign [mem size 0x00200000 64bit pref] [ 1.085613] pci 0000:00:1c.2: BAR 14: no space for [mem size 0x00200000] [ 1.085672] pci 0000:00:1c.2: BAR 14: failed to assign [mem size 0x00200000] [ 1.085738] pci 0000:00:1c.2: BAR 15: no space for [mem size 0x00200000 64bit pref] [ 1.085808] pci 0000:00:1c.2: BAR 15: failed to assign [mem size 0x00200000 64bit pref] [ 1.085884] pci 0000:00:1c.0: BAR 15: no space for [mem size 0x00200000 64bit pref] [ 1.085954] pci 0000:00:1c.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref] [ 1.086026] pci 0000:00:1c.0: PCI bridge to [bus 01] [ 1.086083] pci 0000:00:1c.0: bridge window [io 0x1000-0x1fff] [ 1.086144] pci 0000:00:1c.0: bridge window [mem 0xd0400000-0xd07fffff] -- Thanks, Sekhar
On Sun, Feb 09, 2020 at 07:59:41AM +0530, Muni Sekhar wrote:
Hi all,
After rebooting the system following messages are seen in dmesg. Not sure if these indicate a problem. Can some one look at these and confirm if this is problem or can be ignored ?
Also any suggestions as to what would cause this?
[ 1.084728] pci 0000:00:1c.0: BAR 15: no space for [mem size 0x00200000 64bit pref] [ 1.084813] pci 0000:00:1c.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref] [ 1.084890] pci 0000:00:1c.2: BAR 14: no space for [mem size 0x00200000] [ 1.084949] pci 0000:00:1c.2: BAR 14: failed to assign [mem size 0x00200000] [ 1.085037] pci 0000:00:1c.2: BAR 15: no space for [mem size 0x00200000 64bit pref] [ 1.085108] pci 0000:00:1c.2: BAR 15: failed to assign [mem size 0x00200000 64bit pref] [ 1.085199] pci 0000:00:1c.3: BAR 15: no space for [mem size 0x00200000 64bit pref] [ 1.085270] pci 0000:00:1c.3: BAR 15: failed to assign [mem size 0x00200000 64bit pref] [ 1.085343] pci 0000:00:1c.0: BAR 13: assigned [io 0x1000-0x1fff] [ 1.085403] pci 0000:00:1c.2: BAR 13: assigned [io 0x2000-0x2fff] [ 1.085470] pci 0000:00:1c.3: BAR 15: no space for [mem size 0x00200000 64bit pref] [ 1.085540] pci 0000:00:1c.3: BAR 15: failed to assign [mem size 0x00200000 64bit pref] [ 1.085613] pci 0000:00:1c.2: BAR 14: no space for [mem size 0x00200000] [ 1.085672] pci 0000:00:1c.2: BAR 14: failed to assign [mem size 0x00200000] [ 1.085738] pci 0000:00:1c.2: BAR 15: no space for [mem size 0x00200000 64bit pref] [ 1.085808] pci 0000:00:1c.2: BAR 15: failed to assign [mem size 0x00200000 64bit pref] [ 1.085884] pci 0000:00:1c.0: BAR 15: no space for [mem size 0x00200000 64bit pref] [ 1.085954] pci 0000:00:1c.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref] [ 1.086026] pci 0000:00:1c.0: PCI bridge to [bus 01] [ 1.086083] pci 0000:00:1c.0: bridge window [io 0x1000-0x1fff] [ 1.086144] pci 0000:00:1c.0: bridge window [mem 0xd0400000-0xd07fffff]
The "no space" and "failed to assign" messages are all for bridge windows (13 is the I/O window, 14 is the MMIO window, 15 is the MMIO pref window). I can't tell if you have any devices below these bridges (lspci would show them). If you don't have any devices below these bridges, you can ignore the messages. Bjorn
participants (2)
-
Bjorn Helgaas -
Muni Sekhar