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Jack Steiner d74700e604 [IA64-SGI] Missed TLB flush ... I see why the problem exists only on SN. SN uses a different hardware mechanism to purge TLB entries across nodes. It looks like there is a bug in the SN TLB flushing code. During context switch, kernel threads inherit the mm of the task that was previously running on the cpu. This confuses the code in sn2_global_tlb_purge(). The result is a missed TLB purge for the task that owns the "borrowed" mm. (I hit the problem running heavy stress where kswapd was purging code pages of a user task that woke kswapd. The user task took a SIGILL fault trying to execute code in the page that had been ripped out from underneath it). Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>		19 years ago
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sn2	[IA64-SGI] Missed TLB flush	19 years ago
Makefile	[IA64-SGI] SGI Altix cross partition functionality [3/3]	20 years ago
bte.c	[IA64-SGI] bte_copy nasid_index fix	19 years ago
bte_error.c	[IA64-SGI] Shub2 BTE support - BTE recovery code	20 years ago
huberror.c	[IA64-SGI] - New SN hardware support - cpu_relax	20 years ago
idle.c	Linux-2.6.12-rc2	20 years ago
io_init.c	[IA64-SGI] altix: pci_window fixup	19 years ago
iomv.c	[IA64-SGI] altix: enable vgacon support	20 years ago
irq.c	Merge linux-2.6 into linux-acpi-2.6 test	20 years ago
klconflib.c	Linux-2.6.12-rc2	20 years ago
machvec.c	Linux-2.6.12-rc2	20 years ago
mca.c	[IA64] SAL to OS callbacks cannot call sleeping	20 years ago
setup.c	[IA64-SGI] set altix preferred console	20 years ago
tiocx.c	Pull define-node-cleanup into release branch	20 years ago
xp_main.c	[IA64-SGI] SGI Altix cross partition functionality (2nd	20 years ago
xp_nofault.S	[IA64-SGI] SGI Altix cross partition functionality (2nd	20 years ago
xpc.h	[IA64] utilize notify_die() for XPC disengage	20 years ago
xpc_channel.c	[IA64-SGI] fixes for XPC disengage and open/close protocol	20 years ago
xpc_main.c	[IA64] utilize notify_die() for XPC disengage	20 years ago
xpc_partition.c	[IA64] utilize notify_die() for XPC disengage	20 years ago
xpnet.c	[PATCH] more SPIN_LOCK_UNLOCKED -> DEFINE_SPINLOCK conversions	20 years ago