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failed to allocate UMP memory

Note: This was originally posted on 30th April 2013 at http://forums.arm.com

Hi everybody, I have a very strange issue on r3p0 or r3p1 driver.

When I use Firefox to do a web browsing. After that about 10~20 [size=2]min[/size]. My desktop will got black and I found some error in xorg. [size=2]It always shows failed to [/size][font=Arial, sans-serif][size=2]allocate UMP memory. And the [/size][/font][font=Arial, sans-serif][size=2]5376[/size][/font][font=Arial, sans-serif][size=2]bytes size is not always fixed.[/size][/font]

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[font=arial][font=Arial, sans-serif](EE) MALI(0): [maliModifyPixmapHeader:1344] failed to allocate UMP memory (5376[/font][font=Arial, sans-serif]bytes)[/font][/font]

[font=arial][font=Arial, sans-serif](EE) MALI(0): [maliPrepareAccess:1413] No mem_info on pixmap[/font][/font]

[font=arial] [/font]

[font=arial][font=Arial, sans-serif]Fatal server error:[/font][/font]

[font=arial][font=Arial, sans-serif]Driver failed PrepareAccess on a pinned pixmap.[/font][/font]

[font=arial][font=Arial, sans-serif]------------[/font][/font]

[font=arial][font=Arial, sans-serif] [/font][/font]

[font=arial][font=Arial, sans-serif][size=2]After trace, I found the ump.ko will allocate page fail when execute the "[/size][size=2]new_table = descriptor_table_alloc(nr_mappings_new);[/size][size=2]" in the "[/size][size=2]ump_descriptor_mapping_allocate_mapping()[/size][size=2]" in ump_kernel_descriptor_mapping.c[/size][/font][/font]

[font=arial][font=Arial, sans-serif][size=2]
[/size][/font][/font]

[font=arial][font=Arial, sans-serif][size=2]Dose anyone have met this issue or any suggestions? Thank you:)[/size][/font][/font]