G/C/B-Series Reboots with "DMA failed too many times" and "Error(0x6c327800)" messages

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Article ID: 12677 

Products
G-Series, firmware 1.02.00.0043 through 6.42.09.0005
C5-Series, firmware 6.42.09.0005 and lower
C3-Series, firmware 1.02.01.0004 through 6.42.09.0005
C2-Series, firmware 5.02.01.0006 and higher
B5-Series, firmware 6.42.09.0005 and lower
B3-Series, firmware 1.02.01.0004 through 6.42.09.0005
B2-Series, firmware 4.02.01.0006 and higher 

Symptoms
System reboot.
"DMA failed too many times" and "Error(0x6c327800)" messages, plus a "soc_l2x_dma_timeout_log" BackTrace, seen in the current.log (5487). 

For example:
<160>Oct 22 10:46:49 10.20.235.245-1 SIM[52792912]: g3hwutils.c(6642) 52 %%
soc_l2x_thread unit = 0: DMA failed too many times
<160>Oct 22 10:46:49 10.20.235.245-1 SIM[52792912]: g3hwutils.c(6644) 53 %%
Error(0x6c327800)
<57> OCT 22 10:46:06 2010 STK1 BOOT[268430624]: bootos.c(1337) 58 %%
Start of Code - Build:06.03.04.0004 Date:Fri Mar 26 14:38:49 2010
BackTrace-0x00703bac: sysReboot (0x703bac) + 0x0
BackTrace-0x00f65b54: SwitchReset (0xf65abc) + 0x98
BackTrace-0x00f5f314: log_error_nvram (0xf5f228) + 0xec
BackTrace-0x00f5d840: soc_l2x_dma_timeout_log (0xf5d5d4) + 0x26c
BackTrace-0x0014b71c: _soc_l2x_thread (0x14ae00) + 0x91c
BackTrace-0x0107bbb8: vxTaskEntry (0x107bb5c) + 0x5c
<110> OCT 22 10:46:33 2010 STK1 BOOT[125269320]: edb_bxs.c(872) 65 %%
Last switch reset caused by g3hwutils.c(6644): Error code 0x6c327800, after 3259990 second
Solution
For the G/C5/C3/B5/B3-Series, upgrade to firmware 6.42.10.0016 or higher.
For the C2/B2, please contact the GTAC for assistance.
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Posted 5 years ago

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