This is a note to let you know that I've just added the patch titled MIPS: Hibernate: flush TLB entries earlier to the 3.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mips-hibernate-flush-tlb-entries-earlier.patch and it can be found in the queue-3.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From a843d00d038b11267279e3b5388222320f9ddc1d Mon Sep 17 00:00:00 2001 From: Huacai Chen <chenhc@xxxxxxxxxx> Date: Sun, 29 Mar 2015 10:54:05 +0800 Subject: MIPS: Hibernate: flush TLB entries earlier From: Huacai Chen <chenhc@xxxxxxxxxx> commit a843d00d038b11267279e3b5388222320f9ddc1d upstream. We found that TLB mismatch not only happens after kernel resume, but also happens during snapshot restore. So move it to the beginning of swsusp_arch_suspend(). Signed-off-by: Huacai Chen <chenhc@xxxxxxxxxx> Cc: Steven J. Hill <Steven.Hill@xxxxxxxxxx> Cc: linux-mips@xxxxxxxxxxxxxx Cc: Fuxin Zhang <zhangfx@xxxxxxxxxx> Cc: Zhangjin Wu <wuzhangjin@xxxxxxxxx> Patchwork: https://patchwork.linux-mips.org/patch/9621/ Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/mips/power/hibernate.S | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/arch/mips/power/hibernate.S +++ b/arch/mips/power/hibernate.S @@ -30,6 +30,8 @@ LEAF(swsusp_arch_suspend) END(swsusp_arch_suspend) LEAF(swsusp_arch_resume) + /* Avoid TLB mismatch during and after kernel resume */ + jal local_flush_tlb_all PTR_L t0, restore_pblist 0: PTR_L t1, PBE_ADDRESS(t0) /* source */ @@ -43,7 +45,6 @@ LEAF(swsusp_arch_resume) bne t1, t3, 1b PTR_L t0, PBE_NEXT(t0) bnez t0, 0b - jal local_flush_tlb_all /* Avoid TLB mismatch after kernel resume */ PTR_LA t0, saved_regs PTR_L ra, PT_R31(t0) PTR_L sp, PT_R29(t0) Patches currently in stable-queue which might be from chenhc@xxxxxxxxxx are queue-3.19/mips-loongson-3-add-irqf_no_suspend-to-cascade-irqaction.patch queue-3.19/mips-hibernate-flush-tlb-entries-earlier.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html