diff --git a/debian/changelog b/debian/changelog
index 362236e91..f986b98a7 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -16,6 +16,10 @@ linux-2.6 (2.6.34-1~experimental.1) UNRELEASED; urgency=low
   * Prepare debconf templates for translation (Closes: #576758)
   * [x86] Enable r8187se driver, previously named rtl8187se
 
+  [ Aurelien Jarno ]
+  * mips/swarm: fix boot from IDE based media (Sebastian Andrzej Siewior)
+    (closes: #466977).
+
  -- maximilian attems <maks@debian.org>  Wed, 05 May 2010 22:57:24 +0200
 
 linux-2.6 (2.6.33-1~experimental.5) experimental; urgency=low
diff --git a/debian/patches/bugfix/mips/mips-ide-flush-dcache.patch b/debian/patches/bugfix/mips/mips-ide-flush-dcache.patch
new file mode 100644
index 000000000..e6c22adb2
--- /dev/null
+++ b/debian/patches/bugfix/mips/mips-ide-flush-dcache.patch
@@ -0,0 +1,46 @@
+From: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
+Subject: mips/ide: flush dcache also if icache does not snoop dcache
+
+If this is not done then the new just read data which remains in dcache
+will not make it into icache on time. Thus the CPU loads invalid data
+and executes crap. The result is that the user is not able to execute
+anything from its IDE based media while reading plain data is still
+working well.
+This problem has been reported as Debian #404951.
+
+Cc: stable@kernel.org
+Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
+---
+ arch/mips/include/asm/mach-generic/ide.h |    6 +++---
+ 1 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/arch/mips/include/asm/mach-generic/ide.h b/arch/mips/include/asm/mach-generic/ide.h
+index 9c93a5b..e80e47f 100644
+--- a/arch/mips/include/asm/mach-generic/ide.h
++++ b/arch/mips/include/asm/mach-generic/ide.h
+@@ -23,7 +23,7 @@
+ static inline void __ide_flush_prologue(void)
+ {
+ #ifdef CONFIG_SMP
+-	if (cpu_has_dc_aliases)
++	if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc)
+ 		preempt_disable();
+ #endif
+ }
+@@ -31,14 +31,14 @@ static inline void __ide_flush_prologue(void)
+ static inline void __ide_flush_epilogue(void)
+ {
+ #ifdef CONFIG_SMP
+-	if (cpu_has_dc_aliases)
++	if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc)
+ 		preempt_enable();
+ #endif
+ }
+ 
+ static inline void __ide_flush_dcache_range(unsigned long addr, unsigned long size)
+ {
+-	if (cpu_has_dc_aliases) {
++	if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc) {
+ 		unsigned long end = addr + size;
+ 
+ 		while (addr < end) {
diff --git a/debian/patches/series/base b/debian/patches/series/base
index 9cbd60323..139ede480 100644
--- a/debian/patches/series/base
+++ b/debian/patches/series/base
@@ -56,3 +56,4 @@
 + bugfix/all/p54pci-fix-serious-sparse-warning.patch
 + bugfix/all/p54pci-fix-regression.patch
 + bugfix/all/cifs-allow-null-nd-on-create.patch
++ bugfix/mips/mips-ide-flush-dcache.patch