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Can't run 0.4.5 #7

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garywill opened this issue Feb 16, 2019 · 10 comments
Closed

Can't run 0.4.5 #7

garywill opened this issue Feb 16, 2019 · 10 comments

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@garywill
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Hello there,
Thank you for this interesting program.
Can't run 0.4.5 on Linux x86_64.

$ RUST_BACKTRACE=1 ./procs 
thread 'main' panicked at 'Failed to unwrap map.remove("Umask"). Please report this as a procfs bug.', /home/travis/.cargo/registry/src/github.com-1ecc6299db9ec823/procfs-0.4.5/src/process.rs:1346:59
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
             at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
   1: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:71
   2: std::panicking::default_hook::{{closure}}
             at src/libstd/sys_common/backtrace.rs:59
             at src/libstd/panicking.rs:211
   3: std::panicking::default_hook
             at src/libstd/panicking.rs:227
   4: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:491
   5: std::panicking::continue_panic_fmt
             at src/libstd/panicking.rs:398
   6: std::panicking::begin_panic_fmt
             at src/libstd/panicking.rs:353
   7: procfs::process::Status::from_reader
   8: procfs::process::Process::status
   9: procs::run_opt_config
  10: procs::main
  11: std::rt::lang_start::{{closure}}
  12: std::panicking::try::do_call
             at src/libstd/rt.rs:59
             at src/libstd/panicking.rs:310
  13: __rust_maybe_catch_panic
             at src/libpanic_unwind/lib.rs:102
  14: std::rt::lang_start_internal
             at src/libstd/panicking.rs:289
             at src/libstd/panic.rs:398
             at src/libstd/rt.rs:58
  15: main

Running 0.4.4 OK, but there are odd empty between lines

 PID   User       | State Nice TTY   CPU MEM  VSZ      RSS      TCP    UDP Read  Write | CPU Time Start            | Command                                                                                                        
                                                                                                                                                                                                                                    
                                                                                     
                  |                  [%] [%]  [bytes]  [bytes]             [B/s] [B/s] |                           |                                                                                                                
                                                                                                                                                                                                                                    
                                                                                     
 1     root       | S     0          0.0 0.2  217.703M 9.344M                          | 00:00:05 2019/02/15 18:37 | /usr/lib/systemd/systemd --switched-root --system --deserialize 24                                             
                                                                                                                                                                                                                                    
                                                                                     
 2     root       | S     0          0.0 0.0  0        0                               | 00:00:00 2019/02/15 18:37 | kthreadd                                                                                                       
                                                                                                                                                                                                                                    
                                                                                     
 4     root       | S     -20        0.0 0.0  0        0                               | 00:00:00 2019/02/15 18:37 | kworker/0:0H
@dalance
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dalance commented Feb 16, 2019

Could you write your Linux distribution and kernel version?
The first problem seems to be failure to check kernel version.
The second is actually odd..

@garywill
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openSUSE 15.0
kernel 4.12.14-lp150.12.45-default

@dalance
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dalance commented Feb 16, 2019

I can reproduce the second problem, so it will be fixed at v0.4.6.
But the first problem doesn't occur at openSUSE 15.0 with kernel 4.12.14-lp150.11-default.
Could you execute cat /proc/1/status and paste the result?

@garywill
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$ cat /proc/1/status
Name:	systemd
Umask:	0000
State:	S (sleeping)
Tgid:	1
Ngid:	0
Pid:	1
PPid:	0
TracerPid:	0
Uid:	0	0	0	0
Gid:	0	0	0	0
FDSize:	256
Groups:	 
NStgid:	1
NSpid:	1
NSpgid:	1
NSsid:	1
VmPeak:	  288472 kB
VmSize:	  222936 kB
VmLck:	       0 kB
VmPin:	       0 kB
VmHWM:	    9668 kB
VmRSS:	    9668 kB
RssAnon:	    2828 kB
RssFile:	    6840 kB
RssShmem:	       0 kB
VmData:	   19096 kB
VmStk:	     132 kB
VmExe:	     984 kB
VmLib:	    9596 kB
VmPTE:	     168 kB
VmPMD:	      16 kB
VmSwap:	       0 kB
HugetlbPages:	       0 kB
Threads:	1
SigQ:	0/14181
SigPnd:	0000000000000000
ShdPnd:	0000000000000000
SigBlk:	7be3c0fe28014a03
SigIgn:	0000000000001000
SigCgt:	00000001800004ec
CapInh:	0000000000000000
CapPrm:	0000003fffffffff
CapEff:	0000003fffffffff
CapBnd:	0000003fffffffff
CapAmb:	0000000000000000
NoNewPrivs:	0
Seccomp:	0
Speculation_Store_Bypass:	thread vulnerable
Cpus_allowed:	ff
Cpus_allowed_list:	0-7
Mems_allowed:	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
Mems_allowed_list:	0
voluntary_ctxt_switches:	1821
nonvoluntary_ctxt_switches:	324

Odd thing happened just now. I rebooted PC, then 0.4.5 could run. Then, after about 5 minutes, I tried again and it couldn't run.

PS: process exit code 101

@garywill
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I think I found what's causing it. It's uget and it's backend aria2c

tcp    LISTEN     0      128    127.0.0.1:6800               0.0.0.0:*                   users:(("aria2c",pid=22288,fd=6))

tcp    ESTAB      0      0      127.0.0.1:44988              127.0.0.1:6800                users:(("uget-gtk",pid=22280,fd=20))
tcp    ESTAB      0      0      127.0.0.1:6800               127.0.0.1:44988               users:(("aria2c",pid=22288,fd=7))

tcp    SYN-SENT   0      1      192.168.x.x:52130              172.217.160.110:80                  users:(("uget-gtk",pid=22280,fd=12))
tcp    SYN-SENT   0      1       [fe80::xxxx:xxx:xxxx:xxxx]:56972                [2404:6800:4008:801::200e]:80                  users:(("uget-gtk",pid=22280,fd=18))


user    22280  4429  2 19:07 ?        00:00:00 uget-gtk
user    22285 22280  0 19:07 ?        00:00:00 [aria2c] <defunct>
user    22288     1  0 19:07 ?        00:00:00 aria2c -c -x16 -s10 -k1M --enable-rpc=true -D --disable-ipv6 --check-certificate=false

Close uget and wait for about 5 sec, then it can run.

@dalance
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dalance commented Feb 16, 2019

Could you check cat /proc/[uget's pid or aria2c's pid]/status?
Do these include Umask entry?

@garywill
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Name:	uget-gtk
Umask:	0022
State:	S (sleeping)
Tgid:	28651
Ngid:	0
Pid:	28651
PPid:	4429
TracerPid:	0
Uid:	1000	1000	1000	1000
Gid:	100	100	100	100
FDSize:	64
Groups:	33 100 460 461 463 479 480 
NStgid:	28651
NSpid:	28651
NSpgid:	3902
NSsid:	3902
VmPeak:	 1067012 kB
VmSize:	 1001476 kB
VmLck:	       0 kB
VmPin:	       0 kB
VmHWM:	   47740 kB
VmRSS:	   47740 kB
RssAnon:	   10968 kB
RssFile:	   36612 kB
RssShmem:	     160 kB
VmData:	   68184 kB
VmStk:	     132 kB
VmExe:	     392 kB
VmLib:	   40776 kB
VmPTE:	     616 kB
VmPMD:	      16 kB
VmSwap:	       0 kB
HugetlbPages:	       0 kB
Threads:	7
SigQ:	0/14181
SigPnd:	0000000000000000
ShdPnd:	0000000000000000
SigBlk:	0000000000000000
SigIgn:	0000000000001000
SigCgt:	0000000180004022
CapInh:	0000000000000000
CapPrm:	0000000000000000
CapEff:	0000000000000000
CapBnd:	0000003fffffffff
CapAmb:	0000000000000000
NoNewPrivs:	0
Seccomp:	0
Speculation_Store_Bypass:	thread vulnerable
Cpus_allowed:	ff
Cpus_allowed_list:	0-7
Mems_allowed:	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
Mems_allowed_list:	0
voluntary_ctxt_switches:	430
nonvoluntary_ctxt_switches:	29

Name:	aria2c
State:	Z (zombie)
Tgid:	28656
Ngid:	0
Pid:	28656
PPid:	28651
TracerPid:	0
Uid:	1000	1000	1000	1000
Gid:	100	100	100	100
FDSize:	0
Groups:	33 100 460 461 463 479 480 
NStgid:	28656
NSpid:	28656
NSpgid:	3902
NSsid:	3902
Threads:	1
SigQ:	0/14181
SigPnd:	0000000000000000
ShdPnd:	0000000000000000
SigBlk:	0000000000000000
SigIgn:	0000000000001000
SigCgt:	0000000180000000
CapInh:	0000000000000000
CapPrm:	0000000000000000
CapEff:	0000000000000000
CapBnd:	0000003fffffffff
CapAmb:	0000000000000000
NoNewPrivs:	0
Seccomp:	0
Speculation_Store_Bypass:	thread vulnerable
Cpus_allowed:	ff
Cpus_allowed_list:	0-7
Mems_allowed:	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
Mems_allowed_list:	0
voluntary_ctxt_switches:	1
nonvoluntary_ctxt_switches:	1

Name:	aria2c
Umask:	0022
State:	S (sleeping)
Tgid:	28659
Ngid:	0
Pid:	28659
PPid:	1
TracerPid:	0
Uid:	1000	1000	1000	1000
Gid:	100	100	100	100
FDSize:	64
Groups:	33 100 460 461 463 479 480 
NStgid:	28659
NSpid:	28659
NSpgid:	28659
NSsid:	28659
VmPeak:	   72244 kB
VmSize:	   72244 kB
VmLck:	       0 kB
VmPin:	       0 kB
VmHWM:	    6376 kB
VmRSS:	    6376 kB
RssAnon:	    1196 kB
RssFile:	    5180 kB
RssShmem:	       0 kB
VmData:	     904 kB
VmStk:	     132 kB
VmExe:	       8 kB
VmLib:	   18920 kB
VmPTE:	     140 kB
VmPMD:	      12 kB
VmSwap:	       0 kB
HugetlbPages:	       0 kB
Threads:	1
SigQ:	0/14181
SigPnd:	0000000000000000
ShdPnd:	0000000000000000
SigBlk:	0000000000000000
SigIgn:	0000000000011000
SigCgt:	0000000180004003
CapInh:	0000000000000000
CapPrm:	0000000000000000
CapEff:	0000000000000000
CapBnd:	0000003fffffffff
CapAmb:	0000000000000000
NoNewPrivs:	0
Seccomp:	0
Speculation_Store_Bypass:	thread vulnerable
Cpus_allowed:	ff
Cpus_allowed_list:	0-7
Mems_allowed:	00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
Mems_allowed_list:	0
voluntary_ctxt_switches:	134
nonvoluntary_ctxt_switches:	0

@dalance
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dalance commented Feb 16, 2019

Thanks. I understood it and I'll fix.

dalance added a commit that referenced this issue Feb 18, 2019
@dalance
Update procfs to 0.4.6 #7
e701f38
@dalance
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dalance commented Feb 18, 2019

I released v0.4.7. Could you try it?

@garywill
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0.4.7 runs fine with uget

@dalance dalance closed this as completed Feb 19, 2019
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@dalance @garywill