Re: [PATCH] ARC: Improve handling of fatal signals in do_page_fault()
Hi Vineet,
On Wed, 2018-08-01 at 12:49 -0700, Vineet Gupta wrote:
> Hi Alexey,
>
> I was finally forced to revisit this for my glibc tst-tls3-malloc deadlock.
> And
> indeed with this change we don'tsee the deadlock. But see below..
>
>
> > @@ -139,12 +139,16 @@ void do_page_fault(unsigned long address, struct
> > pt_regs *regs)
> > */
> > fault = handle_mm_fault(vma, address, flags);
> >
> > - /* If Pagefault was interrupted by SIGKILL, exit page fault "early" */
> > + /* If we need to retry but a fatal signal is pending, handle the
> > +* signal first. We do not need to release the mmap_sem because
> > +* it would already be released in __lock_page_or_retry in
> > +* mm/filemap.c. */
>
> Right and we were already doing that: up_read() was called for !VM_FAULT_RETRY
> meaning we relied on the core mm to do that already for VM_FAULT_RETRY case.
>
> The issue here was additional check for VM_FAULT_ERROR. Typically this is not
> set
> by handle_mm_fault() meaning for common user faults with signal pending, we
> were
> not calling up_read, hence the ensuing deadlock.
Right.
> > if (unlikely(fatal_signal_pending(current))) {
> > - if ((fault & VM_FAULT_ERROR) && !(fault & VM_FAULT_RETRY))
> > - up_read(&mm->mmap_sem);
> > - if (user_mode(regs))
> > + if (fault & VM_FAULT_RETRY) {
> > + if (!user_mode(regs))
> > + goto no_context;
>
> Given this code is really tricky, lets only solve one problem with 1 one
> patch.
Agree.
> > return;
> > + }
> > }
>
> The fault handling is spaghetti mess of checks and more checks and has not
> really
> been touched since upstreaming. I need to clean it up and essentially rewrite
> it
> for v4.19
So would you like me to send a re-spin with less changes as discussed above so
we have something better for now and for back-porting to stable branches.
Or you're going to rewrite all that sometime soon yourself?
-Alexey
___
linux-snps-arc mailing list
linux-snps-arc@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-snps-arc
[PATCH] ARC: Remove CONFIG_DEFAULT_HOSTNAME from defconfigs
There's no reason to set the same hostname to all ARC boards by default. It usually gets overwritten by init scripts anyways. Signed-off-by: Alexey Brodkin --- arch/arc/configs/axs101_defconfig | 1 - arch/arc/configs/axs103_defconfig | 1 - arch/arc/configs/axs103_smp_defconfig | 1 - arch/arc/configs/haps_hs_defconfig | 1 - arch/arc/configs/haps_hs_smp_defconfig | 1 - arch/arc/configs/hsdk_defconfig| 1 - arch/arc/configs/nsim_700_defconfig| 1 - arch/arc/configs/nsim_hs_defconfig | 1 - arch/arc/configs/nsim_hs_smp_defconfig | 1 - arch/arc/configs/nsimosci_defconfig| 1 - arch/arc/configs/nsimosci_hs_defconfig | 1 - arch/arc/configs/nsimosci_hs_smp_defconfig | 1 - arch/arc/configs/vdk_hs38_defconfig| 1 - arch/arc/configs/vdk_hs38_smp_defconfig| 1 - 14 files changed, 14 deletions(-) diff --git a/arch/arc/configs/axs101_defconfig b/arch/arc/configs/axs101_defconfig index 55686cc4bb19..3dbb2b3f60af 100644 --- a/arch/arc/configs/axs101_defconfig +++ b/arch/arc/configs/axs101_defconfig @@ -1,4 +1,3 @@ -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y diff --git a/arch/arc/configs/axs103_defconfig b/arch/arc/configs/axs103_defconfig index 20fb8e4e7337..4d7b85d4b2dc 100644 --- a/arch/arc/configs/axs103_defconfig +++ b/arch/arc/configs/axs103_defconfig @@ -1,4 +1,3 @@ -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y diff --git a/arch/arc/configs/axs103_smp_defconfig b/arch/arc/configs/axs103_smp_defconfig index 51d1e866ce94..92417e2e39f3 100644 --- a/arch/arc/configs/axs103_smp_defconfig +++ b/arch/arc/configs/axs103_smp_defconfig @@ -1,4 +1,3 @@ -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y diff --git a/arch/arc/configs/haps_hs_defconfig b/arch/arc/configs/haps_hs_defconfig index ab231c040efe..4984d9ed1573 100644 --- a/arch/arc/configs/haps_hs_defconfig +++ b/arch/arc/configs/haps_hs_defconfig @@ -1,4 +1,3 @@ -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y diff --git a/arch/arc/configs/haps_hs_smp_defconfig b/arch/arc/configs/haps_hs_smp_defconfig index cf449cbf440d..1e93690b4a4f 100644 --- a/arch/arc/configs/haps_hs_smp_defconfig +++ b/arch/arc/configs/haps_hs_smp_defconfig @@ -1,4 +1,3 @@ -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig index ba101d12515f..200d4ee436bc 100644 --- a/arch/arc/configs/hsdk_defconfig +++ b/arch/arc/configs/hsdk_defconfig @@ -1,4 +1,3 @@ -CONFIG_DEFAULT_HOSTNAME="ARCLinux" CONFIG_SYSVIPC=y # CONFIG_CROSS_MEMORY_ATTACH is not set CONFIG_NO_HZ_IDLE=y diff --git a/arch/arc/configs/nsim_700_defconfig b/arch/arc/configs/nsim_700_defconfig index 31c2c70b34a1..0b59778604e4 100644 --- a/arch/arc/configs/nsim_700_defconfig +++ b/arch/arc/configs/nsim_700_defconfig @@ -1,5 +1,4 @@ # CONFIG_LOCALVERSION_AUTO is not set -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y diff --git a/arch/arc/configs/nsim_hs_defconfig b/arch/arc/configs/nsim_hs_defconfig index a578c721d50f..e829b683887d 100644 --- a/arch/arc/configs/nsim_hs_defconfig +++ b/arch/arc/configs/nsim_hs_defconfig @@ -1,5 +1,4 @@ # CONFIG_LOCALVERSION_AUTO is not set -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y diff --git a/arch/arc/configs/nsim_hs_smp_defconfig b/arch/arc/configs/nsim_hs_smp_defconfig index 37d7395f3272..bef937c551f8 100644 --- a/arch/arc/configs/nsim_hs_smp_defconfig +++ b/arch/arc/configs/nsim_hs_smp_defconfig @@ -1,5 +1,4 @@ # CONFIG_LOCALVERSION_AUTO is not set -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set # CONFIG_CROSS_MEMORY_ATTACH is not set CONFIG_HIGH_RES_TIMERS=y diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig index 1e1470e2a7f0..ac601e33bb47 100644 --- a/arch/arc/configs/nsimosci_defconfig +++ b/arch/arc/configs/nsimosci_defconfig @@ -1,5 +1,4 @@ # CONFIG_LOCALVERSION_AUTO is not set -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y # CONFIG_CROSS_MEMORY_ATTACH is not set diff --git a/arch/arc/configs/nsimosci_hs_defconfig b/arch/arc/configs/nsimosci_hs_defconfig index 084a6e42685b..fef290c65e4c 100644 --- a/arch/arc/configs/nsimosci_hs_defconfig +++ b/arch/arc/configs/nsimosci_hs_defconfig @@ -1,5 +1,4 @@ # CONFIG_LOCALVERSION_AUTO is not set -CONFIG_DEFAULT_HOSTNAME="ARCLinux" # CONFIG_SWAP is not set CONFIG_SYSVIPC=y # CONFIG_CROSS_MEMORY_ATTACH is not set diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig b/arch/arc/configs/nsimosci_hs_smp_defconfig index f36d47990415..c0d19623aa82 100644 --- a/arch/arc/configs/nsimosci_hs_smp_defcon
[PATCH] ARC: [plat-axs10x] Enable SWAP
SWAP support on ARC was fixed earlier by
commit 6e3761145a9b ("ARC: Fix CONFIG_SWAP")
so now we may safely enable it on platforms that
have external media like USB and SD-card.
Signed-off-by: Alexey Brodkin
Cc: sta...@vger.kernel.org # 6e3761145a9b: ARC: Fix CONFIG_SWAP
---
arch/arc/configs/axs101_defconfig | 1 -
arch/arc/configs/axs103_defconfig | 1 -
arch/arc/configs/axs103_smp_defconfig | 1 -
3 files changed, 3 deletions(-)
diff --git a/arch/arc/configs/axs101_defconfig
b/arch/arc/configs/axs101_defconfig
index 3dbb2b3f60af..96b7258a76be 100644
--- a/arch/arc/configs/axs101_defconfig
+++ b/arch/arc/configs/axs101_defconfig
@@ -1,4 +1,3 @@
-# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
diff --git a/arch/arc/configs/axs103_defconfig
b/arch/arc/configs/axs103_defconfig
index 4d7b85d4b2dc..72fc21ef1334 100644
--- a/arch/arc/configs/axs103_defconfig
+++ b/arch/arc/configs/axs103_defconfig
@@ -1,4 +1,3 @@
-# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
diff --git a/arch/arc/configs/axs103_smp_defconfig
b/arch/arc/configs/axs103_smp_defconfig
index 92417e2e39f3..2ac89bd00e28 100644
--- a/arch/arc/configs/axs103_smp_defconfig
+++ b/arch/arc/configs/axs103_smp_defconfig
@@ -1,4 +1,3 @@
-# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
--
2.17.1
___
linux-snps-arc mailing list
linux-snps-arc@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-snps-arc
[PATCH] ARC: Remove disabled CONFIG_DEVKMEM from defconfigs
CONFIG_DEVKMEM by default is disabled so clean-up our defconfigs. Signed-off-by: Alexey Brodkin Cc: Vineet Gupta Cc: Ofer Levi --- arch/arc/configs/axs101_defconfig | 1 - arch/arc/configs/axs103_defconfig | 1 - arch/arc/configs/axs103_smp_defconfig | 1 - arch/arc/configs/haps_hs_defconfig | 1 - arch/arc/configs/haps_hs_smp_defconfig | 1 - arch/arc/configs/nps_defconfig | 1 - arch/arc/configs/nsim_700_defconfig| 1 - arch/arc/configs/nsim_hs_defconfig | 1 - arch/arc/configs/nsim_hs_smp_defconfig | 1 - arch/arc/configs/nsimosci_defconfig| 1 - arch/arc/configs/nsimosci_hs_defconfig | 1 - arch/arc/configs/nsimosci_hs_smp_defconfig | 1 - arch/arc/configs/tb10x_defconfig | 1 - arch/arc/configs/vdk_hs38_defconfig| 1 - 14 files changed, 14 deletions(-) diff --git a/arch/arc/configs/axs101_defconfig b/arch/arc/configs/axs101_defconfig index 96b7258a76be..67cfb46675a2 100644 --- a/arch/arc/configs/axs101_defconfig +++ b/arch/arc/configs/axs101_defconfig @@ -61,7 +61,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y CONFIG_MOUSE_SERIAL=y CONFIG_MOUSE_SYNAPTICS_USB=y # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_DW=y diff --git a/arch/arc/configs/axs103_defconfig b/arch/arc/configs/axs103_defconfig index 72fc21ef1334..42a743c54520 100644 --- a/arch/arc/configs/axs103_defconfig +++ b/arch/arc/configs/axs103_defconfig @@ -62,7 +62,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y CONFIG_MOUSE_SERIAL=y CONFIG_MOUSE_SYNAPTICS_USB=y # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_DW=y diff --git a/arch/arc/configs/axs103_smp_defconfig b/arch/arc/configs/axs103_smp_defconfig index 2ac89bd00e28..5886fdcacb34 100644 --- a/arch/arc/configs/axs103_smp_defconfig +++ b/arch/arc/configs/axs103_smp_defconfig @@ -63,7 +63,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y CONFIG_MOUSE_SERIAL=y CONFIG_MOUSE_SYNAPTICS_USB=y # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_DW=y diff --git a/arch/arc/configs/haps_hs_defconfig b/arch/arc/configs/haps_hs_defconfig index 4984d9ed1573..765ec516135c 100644 --- a/arch/arc/configs/haps_hs_defconfig +++ b/arch/arc/configs/haps_hs_defconfig @@ -57,7 +57,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y # CONFIG_SERIO_SERPORT is not set CONFIG_SERIO_ARC_PS2=y # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_NR_UARTS=1 diff --git a/arch/arc/configs/haps_hs_smp_defconfig b/arch/arc/configs/haps_hs_smp_defconfig index 1e93690b4a4f..1f97b63c77f3 100644 --- a/arch/arc/configs/haps_hs_smp_defconfig +++ b/arch/arc/configs/haps_hs_smp_defconfig @@ -60,7 +60,6 @@ CONFIG_MOUSE_PS2_TOUCHKIT=y # CONFIG_SERIO_SERPORT is not set CONFIG_SERIO_ARC_PS2=y # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_NR_UARTS=1 diff --git a/arch/arc/configs/nps_defconfig b/arch/arc/configs/nps_defconfig index 7c9c706ae7f6..31ba224bbfb4 100644 --- a/arch/arc/configs/nps_defconfig +++ b/arch/arc/configs/nps_defconfig @@ -59,7 +59,6 @@ CONFIG_NETCONSOLE=y # CONFIG_INPUT_MOUSE is not set # CONFIG_SERIO is not set # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_NR_UARTS=1 diff --git a/arch/arc/configs/nsim_700_defconfig b/arch/arc/configs/nsim_700_defconfig index 0b59778604e4..b3c3c5763a3e 100644 --- a/arch/arc/configs/nsim_700_defconfig +++ b/arch/arc/configs/nsim_700_defconfig @@ -44,7 +44,6 @@ CONFIG_LXT_PHY=y # CONFIG_INPUT_MOUSE is not set # CONFIG_SERIO is not set # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_ARC=y CONFIG_SERIAL_ARC_CONSOLE=y # CONFIG_HW_RANDOM is not set diff --git a/arch/arc/configs/nsim_hs_defconfig b/arch/arc/configs/nsim_hs_defconfig index e829b683887d..cd7aed46e6bf 100644 --- a/arch/arc/configs/nsim_hs_defconfig +++ b/arch/arc/configs/nsim_hs_defconfig @@ -45,7 +45,6 @@ CONFIG_DEVTMPFS=y # CONFIG_INPUT_MOUSE is not set # CONFIG_SERIO is not set # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_ARC=y CONFIG_SERIAL_ARC_CONSOLE=y # CONFIG_HW_RANDOM is not set diff --git a/arch/arc/configs/nsim_hs_smp_defconfig b/arch/arc/configs/nsim_hs_smp_defconfig index bef937c551f8..84a2a31fd0d4 100644 --- a/arch/arc/configs/nsim_hs_smp_defconfig +++ b/arch/arc/configs/nsim_hs_smp_defconfig @@ -44,7 +44,6 @@ CONFIG_DEVTMPFS=y # CONFIG_INPUT_MOUSE is not set # CONFIG_SERIO is not set # CONFIG_LEGACY_PTYS is not set -# CONFIG_DEVKMEM is not set CONFIG_SERIAL_ARC=y CONFIG_SERIAL_ARC_CONSOLE=y # CONFIG_HW_RANDOM is not set diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc
[PATCH] ARC: AXS10x/HSDK: Allow U-Boot to pass MAC-address to the kernel
Otherwise kernel uses random MAC which is not very conveniet.
With that change in place use might set desired MAC in U-Boot
with "setenv ethaddr 11:22:33:44:55:66", save environment and
then from boot to boot the same MAC will be used by the kernel.
One other note for this to happen it's required to pass
board's .dtb in U-Boot's "bootm" command like that:
--->8-
bootm 0x8200 - 0x8400
--->8-
Here 0x8200 is location of uImage while
0x8000 is location of either axs10x.dtb or hsdk.dtb
previously loaded from SD-card, USB storage or TFTP server.
Signed-off-by: Alexey Brodkin
Cc: Rob Herring
Cc: sta...@vger.kernel.org # 4.14
Cc: devicet...@vger.kernel.org
---
arch/arc/boot/dts/axs10x_mb.dtsi | 7 ++-
arch/arc/boot/dts/hsdk.dts | 7 ++-
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi
index 47b74fbc403c..37bafd44e36d 100644
--- a/arch/arc/boot/dts/axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/axs10x_mb.dtsi
@@ -9,6 +9,10 @@
*/
/ {
+ aliases {
+ ethernet = &gmac;
+ };
+
axs10x_mb {
compatible = "simple-bus";
#address-cells = <1>;
@@ -68,7 +72,7 @@
};
};
- ethernet@0x18000 {
+ gmac: ethernet@0x18000 {
#interrupt-cells = <1>;
compatible = "snps,dwmac";
reg = < 0x18000 0x2000 >;
@@ -81,6 +85,7 @@
max-speed = <100>;
resets = <&creg_rst 5>;
reset-names = "stmmaceth";
+ mac-address = [00 00 00 00 00 00]; /* Filled in by
U-Boot */
};
ehci@0x4 {
diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts
index 006aa3de5348..d00f283094d3 100644
--- a/arch/arc/boot/dts/hsdk.dts
+++ b/arch/arc/boot/dts/hsdk.dts
@@ -25,6 +25,10 @@
bootargs = "earlycon=uart8250,mmio32,0xf0005000,115200n8
console=ttyS0,115200n8 debug print-fatal-signals=1";
};
+ aliases {
+ ethernet = &gmac;
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -163,7 +167,7 @@
#clock-cells = <0>;
};
- ethernet@8000 {
+ gmac: ethernet@8000 {
#interrupt-cells = <1>;
compatible = "snps,dwmac";
reg = <0x8000 0x2000>;
@@ -176,6 +180,7 @@
phy-handle = <&phy0>;
resets = <&cgu_rst HSDK_ETH_RESET>;
reset-names = "stmmaceth";
+ mac-address = [00 00 00 00 00 00]; /* Filled in by
U-Boot */
mdio {
#address-cells = <1>;
--
2.17.1
___
linux-snps-arc mailing list
linux-snps-arc@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-snps-arc
[GIT PULL] ARC final updates for 4.18
Hi Linus, Another batch of fixes for ARC, this time mainly DMA API rework wreckage. Please pull. Thx, -Vineet ---> The following changes since commit d72e90f33aa4709ebecc5005562f52335e106a60: Linux 4.18-rc6 (2018-07-22 14:12:20 -0700) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc.git/ tags/arc-4.18-final for you to fetch changes up to ec837d620c750c0d4996a907c8c4f7febe1bbeee: arc: fix type warnings in arc/mm/cache.c (2018-07-30 11:48:50 -0700) ARC updates for 4.18 - Software managed DMA wreckage after rework in 4.17 [Euginey] + missing cache flush + SMP_CACHE_BYTES vs. cache_line_size - allmodconfig build errors [Randy] - Maintainer update for Mellanox (EZChip) NPS platform Eugeniy Paltsev (3): ARC: dma [non IOC]: fix arc_dma_sync_single_for_(device|cpu) ARC: dma [non-IOC] setup SMP_CACHE_BYTES and cache_line_size ARC: add SMP_CACHE_BYTES value validate Leon Romanovsky (1): ARC: Add Ofer Levi as plat-eznps maintainer Ofer Levi (1): ARC: [plat-eznps] Add missing struct nps_host_reg_aux_dpc Randy Dunlap (4): arc: [plat-eznps] fix data type errors in platform headers arc: [plat-eznps] fix printk warning in arc/plat-eznps/mtm.c arc: fix build errors in arc/include/asm/delay.h arc: fix type warnings in arc/mm/cache.c MAINTAINERS | 1 + arch/arc/Kconfig| 3 ++ arch/arc/include/asm/cache.h| 4 ++- arch/arc/include/asm/delay.h| 3 ++ arch/arc/mm/cache.c | 17 ++-- arch/arc/mm/dma.c | 49 +++-- arch/arc/plat-eznps/include/plat/ctop.h | 10 +++ arch/arc/plat-eznps/mtm.c | 6 ++-- 8 files changed, 85 insertions(+), 8 deletions(-) ___ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
Re: [PATCH] ARC: Improve handling of fatal signals in do_page_fault()
On 08/02/2018 12:08 AM, Alexey Brodkin wrote: >> The fault handling is spaghetti mess of checks and more checks and has not >> really >> been touched since upstreaming. I need to clean it up and essentially >> rewrite it >> for v4.19 > So would you like me to send a re-spin with less changes as discussed above so > we have something better for now and for back-porting to stable branches. No that's fine, I'll fix it up here - minimally for the stable backports and do the rewrite later. BTW I tried to reproduce the Old OOM hangs from LTP (STARS 9001304674, 9001281305) to prove that this fix solves those too, but I can't seem to reproduce the same deadlock without this fix on 4.17 kernel. -Vineet ___ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
Re: [PATCH] ARC: AXS10x/HSDK: Allow U-Boot to pass MAC-address to the kernel
On 08/02/2018 03:19 AM, Alexey Brodkin wrote: > Otherwise kernel uses random MAC which is not very conveniet. Curious what exactly is the issue - why does the user care what MAC is assigned ? > With that change in place use might set desired MAC in U-Boot > with "setenv ethaddr 11:22:33:44:55:66", save environment and > then from boot to boot the same MAC will be used by the kernel. > And what if one is running without uboot - it will resort to all zeros vs. random yet working MAC ? ___ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
