[pve-devel] vm stop tasks hanging

Alexandre DERUMIER aderumier at odiso.com
Fri Apr 20 10:39:13 CEST 2012


interesting: when I stop the process, I have this error:


command '/sbin/lvs --separator : --noheadings --units b --unbuffered --nosuffix --options vg_name,lv_name,lv_size,uuid,tags' failed: received interrupt                                                                                             
root at kvm6:~#                                                                                                                                                                                                                                        

I'm using scsi lun directly without lvm, maybe this is the cause of the problem ?

               

----- Mail original ----- 

De: "Alexandre DERUMIER" <aderumier at odiso.com> 
À: "Stefan Priebe - Profihost AG" <s.priebe at profihost.ag> 
Cc: pve-devel at pve.proxmox.com 
Envoyé: Vendredi 20 Avril 2012 10:36:37 
Objet: Re: [pve-devel] vm stop tasks hanging 

Hi, 
console or proxmox gui, same problem. 

strace : 

Process 536632 attached - interrupt to quit 
select(8, [6], NULL, NULL, {0, 602921}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 263 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 262 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 262 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 262 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 262 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 262 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 263 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 263 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 262 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 262 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 262 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 262 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 262 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 262 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 262 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}) = 0 (Timeout) 
open("/proc/536638/stat", O_RDONLY) = 10 
ioctl(10, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff4daca4b0) = -1 ENOTTY (Inappropriate ioctl for device) 
lseek(10, 0, SEEK_CUR) = 0 
fstat(10, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 
fcntl(10, F_SETFD, FD_CLOEXEC) = 0 
read(10, "536638 (qm) S 536632 536638 5366"..., 4096) = 262 
close(10) = 0 
select(8, [6], NULL, NULL, {1, 0}^C <unfinished ...> 
Process 536632 detached 


----- Mail original ----- 

De: "Stefan Priebe - Profihost AG" <s.priebe at profihost.ag> 
À: pve-devel at pve.proxmox.com 
Envoyé: Vendredi 20 Avril 2012 10:00:50 
Objet: Re: [pve-devel] vm stop tasks hanging 

Am 20.04.2012 09:58, schrieb Alexandre DERUMIER: 
> Hi Dietmar, 
> 
> I have problems with kvm stopping task, which are hanging. 
> 
> vm stop correctly (icon in tree is black), but task continue to run. (so i need to stop the task manually). 
> 
> I can reproduce it 100%. 
> 
> Do you have an idea ? 

What does an strace -f -p PID of the vm stop command say? It should do 
or wait for something. Also does it only happen via Proxmox console or 
does it also happen when starting then command via shell? 

Greets 
Stefan 
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-- 

-- 




Alexandre D erumier 
Ingénieur Système 
Fixe : 03 20 68 88 90 
Fax : 03 20 68 90 81 
45 Bvd du Général Leclerc 59100 Roubaix - France 
12 rue Marivaux 75002 Paris - France 




-- 

-- 




	Alexandre D erumier 
Ingénieur Système 
Fixe : 03 20 68 88 90 
Fax : 03 20 68 90 81 
45 Bvd du Général Leclerc 59100 Roubaix - France 
12 rue Marivaux 75002 Paris - France 
	



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