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authorLinas Vepstas <linas@linas.org>2005-11-03 19:49:31 -0500
committerPaul Mackerras <paulus@samba.org>2005-11-09 19:33:33 -0500
commit5c1344e988c716470b5609708215dd7f135f0e3a (patch)
treeb7f736919ffa6b6e07e5b6bc950a4e36cd0d5547 /arch/ppc64/kernel/udbg.c
parentfd761fd876e4d1c0d07b6d93bc45c999fa596cb0 (diff)
[PATCH] ppc64: escape hatch for spinning interrupt deadlocks
08-eeh-spin-counter.patch One an EEH event is triggers, all further I/O to a device is blocked (until reset). Bad device drivers may end up spinning in their interrupt handlers, trying to read an interrupt status register that will never change state. This patch moves that spin counter to a per-device structure, and adds some diagnostic prints to help locate the bad driver. Signed-off-by: Linas Vepstas <linas@linas.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc64/kernel/udbg.c')
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