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authorBenjamin Li <benjamin.li@qlogic.com>2007-02-26 14:06:42 -0500
committerJeff Garzik <jeff@garzik.org>2007-02-27 04:21:45 -0500
commite8f4df2491d07fc369e9d631e0638da03a9b3a38 (patch)
treedc4b183711b05b7717e36cf5fb2c5b915b357c45 /drivers/net/s2io.c
parent63b66d12de57d8455615d9f619e18824137ed547 (diff)
qla3xxx: Kernic Panic on pSeries under stress conditions
To reproduce this panic consistently, we run an intensive network application like 'netperf'. After waiting for a couple of seconds, you will see a stack trace and a kernel panic where we are calling pci_unmap_single() in ql_poll(). Changes: 1) Check the flags on the Response MAC IO Control block to check for errors 2) Ensure that if we are on the 4022 we only use one segment 3) Before, we were reading the memory mapped producer index register everytime we iterated in the loop when clearing the queue. We should only be iterating to a known point, not as the producer index is being updated. Signed-off-by: Benjamin Li <benjamin.li@qlogic.com> Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/s2io.c')
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