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goroutine 5 [IO wait]:
internal/poll.runtime_pollWait(0x7f70c7e4cf00, 0x72, 0x469a89)
        /home/raghu/repo/go/src/github.com/go/src/runtime/netpoll.go:173 +0x59
internal/poll.(*pollDesc).wait(0xc420016338, 0x72, 0x53c3e0, 0x53b120)
        /home/raghu/repo/go/src/github.com/go/src/internal/poll/fd_poll_runtime.go:85 +0xae
internal/poll.(*pollDesc).waitRead(0xc420016338, 0xc420094000, 0x200)
        /home/raghu/repo/go/src/github.com/go/src/internal/poll/fd_poll_runtime.go:90 +0x34
internal/poll.(*FD).Read(0xc420016320, 0xc420094000, 0x200, 0x200, 0x0, 0x0, 0x0)
        /home/raghu/repo/go/src/github.com/go/src/internal/poll/fd_unix.go:113 +0x15e
os.(*File).read(0xc42000c038, 0xc420094000, 0x200, 0x200, 0x45f7fb, 0x4b3fe0, 0x200)

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>>p 'sh -c'
root     10304  0.0  0.0  13980  2592 ?        Ss   11:53   0:00 sh -c while :; do date; sleep 3; done
raghu    10590  0.0  0.0  11056  2220 pts/13   S+   11:54   0:00 grep sh -c
                                                                                                                                                                                                              (/tmp/hh)~11:54-0
>>sudo ls -l /proc/10304/fd
total 0
lr-x------ 1 root root 64 Dec  8 11:53 0 -> 'pipe:[594747]'
l-wx------ 1 root root 64 Dec  8 11:53 1 -> 'pipe:[594746]'
l-wx------ 1 root root 64 Dec  8 11:53 2 -> 'pipe:[594746]'
                                                                                                                                                                                                              (/tmp/hh)~11:54-0

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{
	"ociVersion": "1.0.0-rc2-dev",
	"platform": {
		"os": "linux",
		"arch": "amd64"
	},
	"process": {
		"terminal": false,
		"consoleSize": {
			"height": 0,

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inxi -F
System:    Host: lative Kernel: 4.8.10-1-ARCH x86_64 (64 bit) Desktop: N/A Distro: Arch Linux
Machine:   Device: laptop System: Dell product: XPS 13 9360
           Mobo: Dell model: 0839Y6 v: A00 UEFI: Dell v: 1.0.7 date: 09/13/2016
Battery    BAT0: charge: 75.4 Wh 95.5% condition: 78.9/78.9 Wh (100%)
CPU:       Dual core Intel Core i7-7500U (-HT-MCP-) cache: 4096 KB
           clock speeds: max: 3500 MHz 1: 937 MHz 2: 930 MHz 3: 897 MHz 4: 857 MHz
Graphics:  Card: Intel Device 5916
           Display Server: X.Org 1.18.4 driver: intel Resolution: [email protected]
           GLX Renderer: Mesa DRI Intel HD Graphics 620 (Kabylake GT2) GLX Version: 3.0 Mesa 13.0.2

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 diff --git a/criu/mem.c b/criu/mem.c
 index 2258605..8c46265 100644
 --- a/criu/mem.c
 +++ b/criu/mem.c
 @@ -112,6 +112,9 @@ bool should_dump_page(VmaEntry *vmae, u64 pme)
         if (pme & (PME_PRESENT | PME_SWAP))
                 return true;

 +       if (vmae->madv & (1ul << MADV_DONTDUMP))
 +               return false;

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make
(CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/sh /home/raghu/zookeeper/src/contrib/zkfuse/missing autoheader)
rm -f stamp-h1
touch config.h.in
cd . && /bin/sh ./config.status config.h
config.status: creating config.h
config.status: config.h is unchanged
make  all-recursive
make[1]: Entering directory '/home/raghu/zookeeper/src/contrib/zkfuse'
Making all in src

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$ opam switch show
system
  
$ opam config var switch
system

$ opam config var compiler
system

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sudo ./build-rkt-1.0.0+git/bin/rkt run docker:busybox
image: using image from file /usr/lib/rkt/stage1.aci
image: remote fetching from URL "docker:busybox"
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x5e4314]

goroutine 1 [running, locked to thread]:
github.com/coreos/rkt/rkt/image.(*dockerFetcher).GetHash(0xc82033b2f0, 0xc820322080, 0x0, 0x0, 0x0, 0x0)
        /home/raghu/repo/go/src/github.com/coreos/rkt/build-rkt-1.0.0+git/gopath/src/github.com/coreos/rkt/rkt/image/dockerfetcher.go:54 +0x1f4
github.com/coreos/rkt/rkt/image.(*Fetcher).maybeFetchDockerURLFromRemote(0xc82033ba50, 0xc820322080, 0x0, 0x0, 0x0, 0x0)

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hostile.sh -m 100 curl -L http://google.com
===============

Thread 2 (Thread 0x7fd1b0039740 (LWP 31959)):
#0  0x00007fd1af2e6e8d in poll () from /usr/lib/libc.so.6
#1  0x00007fd1afa16131 in ?? () from /usr/lib/libcurl.so.4
#2  0x00007fd1afa0a180 in curl_easy_perform () from /usr/lib/libcurl.so.4
#3  0x000000000040a6b2 in ?? ()
#4  0x000000000040bfdd in ?? ()
#5  0x000000000040247a in ?? ()

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	net_get_random_once(&inet_ehash_secret, sizeof(inet_ehash_secret));

	return __inet_ehashfn(laddr, lport, faddr, fport,
			      inet_ehash_secret + net_hash_mix(net));


...............
...........
static inline unsigned int __inet_ehashfn(const __be32 laddr,
					  const __u16 lport,