Re: [LKP] dad4f140ed [ 7.709376] WARNING:suspicious_RCU

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* Re: [LKP] dad4f140ed [ 7.709376] WARNING:suspicious_RCU_usage
       [not found] <20181119010820.GM18977@shao2-debian>
@ 2018-11-19  1:19 ` Matthew Wilcox
  2018-11-19 14:39   ` Matthew Wilcox
  0 siblings, 1 reply; 2+ messages in thread
From: Matthew Wilcox @ 2018-11-19  1:19 UTC (permalink / raw)
  To: kernel test robot
  Cc: Linus Torvalds, LKML, linux-doc, linux-fsdevel, linux-parisc,
	linuxppc-dev, intel-gfx, dri-devel, linux-input, linux-acpi,
	linux-pci, LKP

On Mon, Nov 19, 2018 at 09:08:20AM +0800, kernel test robot wrote:
> Greetings,
> 
> 0day kernel testing robot got the below dmesg and the first bad commit is

Umm.  I don't see a 'suspicious RCU usage' message in here.  I see a
lot of vmalloc warnings ... ?

> [    7.699777] swapper: vmalloc: allocation failure: 18446744073709551615 bytes, mode:0x6000c0(GFP_KERNEL), nodemask=(null)
> [    7.724561] swapper: vmalloc: allocation failure: 18446744073709551615 bytes, mode:0x6000c0(GFP_KERNEL), nodemask=(null)
> [    7.737925] swapper: vmalloc: allocation failure: 18446744073709551615 bytes, mode:0x6080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null)
> [    7.750283] swapper: vmalloc: allocation failure: 18446744073709551615 bytes, mode:0x6080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null)
> [    7.777903] swapper: vmalloc: allocation failure: 18446744073709551615 bytes, mode:0x6000c0(GFP_KERNEL), nodemask=(null)
> [    7.787175] swapper: vmalloc: allocation failure: 18446744073709551615 bytes, mode:0x6000c0(GFP_KERNEL), nodemask=(null)
> [    7.796181] swapper: vmalloc: allocation failure: 18446744073709551615 bytes, mode:0x6080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null)
> [    7.804841] swapper: vmalloc: allocation failure: 18446744073709551615 bytes, mode:0x6080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null)

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [LKP] dad4f140ed [ 7.709376] WARNING:suspicious_RCU_usage
  2018-11-19  1:19 ` [LKP] dad4f140ed [ 7.709376] WARNING:suspicious_RCU_usage Matthew Wilcox
@ 2018-11-19 14:39   ` Matthew Wilcox
  0 siblings, 0 replies; 2+ messages in thread
From: Matthew Wilcox @ 2018-11-19 14:39 UTC (permalink / raw)
  To: kernel test robot
  Cc: Linus Torvalds, LKML, linux-doc, linux-fsdevel, linux-parisc,
	linuxppc-dev, intel-gfx, dri-devel, linux-input, linux-acpi,
	linux-pci, LKP

On Sun, Nov 18, 2018 at 05:19:04PM -0800, Matthew Wilcox wrote:
> On Mon, Nov 19, 2018 at 09:08:20AM +0800, kernel test robot wrote:
> > Greetings,
> > 
> > 0day kernel testing robot got the below dmesg and the first bad commit is
> 
> Umm.  I don't see a 'suspicious RCU usage' message in here.  I see a
> lot of vmalloc warnings ... ?

Never mind, the RCU warnings were in one of the attached dmesg files.
I found the problem; it's in the test-suite and not something that could
lead to any real problems today.

Thanks for the report!

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2018-11-19  1:19 ` [LKP] dad4f140ed [ 7.709376] WARNING:suspicious_RCU_usage Matthew Wilcox
2018-11-19 14:39   ` Matthew Wilcox

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