Re: stuck on TLB IPI wait (CPU#0) at 2.2.17+reiserfs+ide+raid
Andi Kleen wrote: > > On Mon, Sep 18, 2000 at 10:06:37AM -0600, Andreas Dilger wrote: > > Chris, you write: > > > > my box sometimes hang up at high load avarage with "stuck on TLB > > > > IPI wait (CPU#0)" messages. > > > > > > This is a known issue with the way reiserfs uses the scheduler task queue. > > > The following patch from Andi Kleen should take care of it for you: > > > > > > --- linux/kernel/sched.c-o Wed Feb 9 14:27:20 2000 > > > +++ linux/kernel/sched.cWed Mar 29 12:53:41 2000 > > > @@ -803,6 +803,7 @@ > > > goto handle_bh_back; > > > > > > handle_tq_scheduler: > > > + __sti(); > > > run_task_queue(_scheduler); > > > goto tq_scheduler_back; > > > > Does this have an impact on the system when not using reiserfs? What > > is it that reiserfs does that affects the scheduler? > > reiserfs has a slightly longer tq_scheduler function to do the slow part > of the end_io handler. Some kernel subsystems enter the scheduler inside > __cli() and it does no good to execute the reiserfs task queue function > with interrupts off (causing the stuck on TLB IPI wait messages) The __sti() can be moved right up to the start of schedule() and then removed from release_kernel_lock(). Or just find out who is calling schedule() with interrupts disabled and make them stop it. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: stuck on TLB IPI wait (CPU#0) at 2.2.17+reiserfs+ide+raid
Andi Kleen wrote: On Mon, Sep 18, 2000 at 10:06:37AM -0600, Andreas Dilger wrote: Chris, you write: my box sometimes hang up at high load avarage with "stuck on TLB IPI wait (CPU#0)" messages. This is a known issue with the way reiserfs uses the scheduler task queue. The following patch from Andi Kleen should take care of it for you: --- linux/kernel/sched.c-o Wed Feb 9 14:27:20 2000 +++ linux/kernel/sched.cWed Mar 29 12:53:41 2000 @@ -803,6 +803,7 @@ goto handle_bh_back; handle_tq_scheduler: + __sti(); run_task_queue(tq_scheduler); goto tq_scheduler_back; Does this have an impact on the system when not using reiserfs? What is it that reiserfs does that affects the scheduler? reiserfs has a slightly longer tq_scheduler function to do the slow part of the end_io handler. Some kernel subsystems enter the scheduler inside __cli() and it does no good to execute the reiserfs task queue function with interrupts off (causing the stuck on TLB IPI wait messages) The __sti() can be moved right up to the start of schedule() and then removed from release_kernel_lock(). Or just find out who is calling schedule() with interrupts disabled and make them stop it. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: stuck on TLB IPI wait (CPU#0) at 2.2.17+reiserfs+ide+raid
Thanks, Chris Mason, > > few weeks ago, I installed a PROMISE Ultra66 IDE card into my SMP Linux > > box. But my box sometimes hang up at high load average with "stuck on TLB > > IPI wait (CPU#0)" messages. > > My kernel is linux-2.2.17 with following patches. > > linux-2.2.17-reiserfs-3.5.25-patch.gz > > ide.2.2.17.all.2904.patch.bz2 > > raid-2.2.17-A0 > This is a known issue with the way reiserfs uses the scheduler task queue. > The following patch from Andi Kleen should take care of it for you: > > --- linux/kernel/sched.c-oWed Feb 9 14:27:20 2000 > +++ linux/kernel/sched.c Wed Mar 29 12:53:41 2000 > @@ -803,6 +803,7 @@ > goto handle_bh_back; > > handle_tq_scheduler: > + __sti(); > run_task_queue(_scheduler); > goto tq_scheduler_back; After using this patch, My linux box work very well with high load average and heavy disk access application like encoding MP3s. Thank you very much and best regards, -- W [EMAIL PROTECTED] |O-O| Hisaaki Shibata @ Fukuoka-shi JAPAN 0(mmm)0 P-mail: 070-5419-3233IRC: #luky ~http://his.luky.org/ last update:2000.3.12 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: stuck on TLB IPI wait (CPU#0) at 2.2.17+reiserfs+ide+raid
Thanks, Chris Mason, few weeks ago, I installed a PROMISE Ultra66 IDE card into my SMP Linux box. But my box sometimes hang up at high load average with "stuck on TLB IPI wait (CPU#0)" messages. My kernel is linux-2.2.17 with following patches. linux-2.2.17-reiserfs-3.5.25-patch.gz ide.2.2.17.all.2904.patch.bz2 raid-2.2.17-A0 This is a known issue with the way reiserfs uses the scheduler task queue. The following patch from Andi Kleen should take care of it for you: --- linux/kernel/sched.c-oWed Feb 9 14:27:20 2000 +++ linux/kernel/sched.c Wed Mar 29 12:53:41 2000 @@ -803,6 +803,7 @@ goto handle_bh_back; handle_tq_scheduler: + __sti(); run_task_queue(tq_scheduler); goto tq_scheduler_back; After using this patch, My linux box work very well with high load average and heavy disk access application like encoding MP3s. Thank you very much and best regards, -- W [EMAIL PROTECTED] |O-O| Hisaaki Shibata @ Fukuoka-shi JAPAN 0(mmm)0 P-mail: 070-5419-3233IRC: #luky ~http://his.luky.org/ last update:2000.3.12 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: stuck on TLB IPI wait (CPU#0) at 2.2.17+reiserfs+ide+raid
On Mon, Sep 18, 2000 at 10:06:37AM -0600, Andreas Dilger wrote: > Chris, you write: > > > my box sometimes hang up at high load avarage with "stuck on TLB > > > IPI wait (CPU#0)" messages. > > > > This is a known issue with the way reiserfs uses the scheduler task queue. > > The following patch from Andi Kleen should take care of it for you: > > > > --- linux/kernel/sched.c-o Wed Feb 9 14:27:20 2000 > > +++ linux/kernel/sched.cWed Mar 29 12:53:41 2000 > > @@ -803,6 +803,7 @@ > > goto handle_bh_back; > > > > handle_tq_scheduler: > > + __sti(); > > run_task_queue(_scheduler); > > goto tq_scheduler_back; > > Does this have an impact on the system when not using reiserfs? What > is it that reiserfs does that affects the scheduler? reiserfs has a slightly longer tq_scheduler function to do the slow part of the end_io handler. Some kernel subsystems enter the scheduler inside __cli() and it does no good to execute the reiserfs task queue function with interrupts off (causing the stuck on TLB IPI wait messages) -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: stuck on TLB IPI wait (CPU#0) at 2.2.17+reiserfs+ide+raid
Chris, you write: > > my box sometimes hang up at high load avarage with "stuck on TLB > > IPI wait (CPU#0)" messages. > > This is a known issue with the way reiserfs uses the scheduler task queue. > The following patch from Andi Kleen should take care of it for you: > > --- linux/kernel/sched.c-oWed Feb 9 14:27:20 2000 > +++ linux/kernel/sched.c Wed Mar 29 12:53:41 2000 > @@ -803,6 +803,7 @@ > goto handle_bh_back; > > handle_tq_scheduler: > + __sti(); > run_task_queue(_scheduler); > goto tq_scheduler_back; Does this have an impact on the system when not using reiserfs? What is it that reiserfs does that affects the scheduler? Cheers, Andreas -- Andreas Dilger \ "If a man ate a pound of pasta and a pound of antipasto, \ would they cancel out, leaving him still hungry?" http://www-mddsp.enel.ucalgary.ca/People/adilger/ -- Dogbert - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: stuck on TLB IPI wait (CPU#0) at 2.2.17+reiserfs+ide+raid
--On 09/16/00 10:53:04 +0900 Hisaaki Shibata <[EMAIL PROTECTED]> wrote: > Hi! > > few weeks ago, I installed a PROMISE Ultra66 IDE card into my SMP Linux > box. But my box sometimes hang up at high load avarage with "stuck on TLB > IPI wait (CPU#0)" messages. > I upgrade my kernel to 2.2.17 but it also hangs. > > My kernel is linux-2.2.17 with following pathes. > linux-2.2.17-reiserfs-3.5.25-patch.gz > ide.2.2.17.all.2904.patch.bz2 > raid-2.2.17-A0 > > Without reiserFS and ide patch, My box worked very well at 2.2.16+raid > patch. > > Please show me what to report to contribute to kernel hackers. > This is a known issue with the way reiserfs uses the scheduler task queue. The following patch from Andi Kleen should take care of it for you: --- linux/kernel/sched.c-o Wed Feb 9 14:27:20 2000 +++ linux/kernel/sched.cWed Mar 29 12:53:41 2000 @@ -803,6 +803,7 @@ goto handle_bh_back; handle_tq_scheduler: + __sti(); run_task_queue(_scheduler); goto tq_scheduler_back; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: stuck on TLB IPI wait (CPU#0) at 2.2.17+reiserfs+ide+raid
On Mon, Sep 18, 2000 at 10:06:37AM -0600, Andreas Dilger wrote: Chris, you write: my box sometimes hang up at high load avarage with "stuck on TLB IPI wait (CPU#0)" messages. This is a known issue with the way reiserfs uses the scheduler task queue. The following patch from Andi Kleen should take care of it for you: --- linux/kernel/sched.c-o Wed Feb 9 14:27:20 2000 +++ linux/kernel/sched.cWed Mar 29 12:53:41 2000 @@ -803,6 +803,7 @@ goto handle_bh_back; handle_tq_scheduler: + __sti(); run_task_queue(tq_scheduler); goto tq_scheduler_back; Does this have an impact on the system when not using reiserfs? What is it that reiserfs does that affects the scheduler? reiserfs has a slightly longer tq_scheduler function to do the slow part of the end_io handler. Some kernel subsystems enter the scheduler inside __cli() and it does no good to execute the reiserfs task queue function with interrupts off (causing the stuck on TLB IPI wait messages) -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
stuck on TLB IPI wait (CPU#0) at 2.2.17+reiserfs+ide+raid
Hi! few weeks ago, I installed a PROMISE Ultra66 IDE card into my SMP Linux box. But my box sometimes hang up at high load avarage with "stuck on TLB IPI wait (CPU#0)" messages. I upgrade my kernel to 2.2.17 but it also hangs. My kernel is linux-2.2.17 with following pathes. linux-2.2.17-reiserfs-3.5.25-patch.gz ide.2.2.17.all.2904.patch.bz2 raid-2.2.17-A0 Without reiserFS and ide patch, My box worked very well at 2.2.16+raid patch. Please show me what to report to contribute to kernel hackers. Some infomation; = /proc/ide/pdc202xx PDC20262 Chipset. --- General Status --- Burst Mode : enabled Host Mode: Normal Bus Clocking : 33 PCI Internal IO pad select: 4 mA Status Polling Period: 0 Interrupt Check Status Polling Delay : 0 --- Primary Channel Secondary Channel --- enabled enabled 66 Clocking enabled enabled Mode MASTER Mode MASTER FIFO Empty FIFO Empty --- drive0 - drive1 drive0 -- drive1 DMA enabled:yes no yes no DMA Mode: UDMA 4 NOTSET UDMA 4NOTSET PIO Mode: PIO 4NOTSET PIO 4NOTSET = /proc/mdstat Personalities : [raid1] read_ahead 1024 sectors md0 : active raid1 hdg4[1] hde4[0] 15607040 blocks [2/2] [UU] resync=34% finish=110.1min unused devices: = /proc/version Linux version 2.2.17-reiserfs-3.5.25-ide.all.2904-RAID ([EMAIL PROTECTED]) (gcc version 2.95.3 19991030 (prerelease)) #2 SMP Sat Sep 9 17:44:48 JST 2000 = /proc/interrupts CPU0 CPU1 0: 195968 196009IO-APIC-edge timer 1:301276IO-APIC-edge keyboard 2: 0 0 XT-PIC cascade 8: 0 1IO-APIC-edge rtc 13: 1 0 XT-PIC fpu 15: 0 0IO-APIC-edge ide1 16: 271935 271902 IO-APIC-level ide2, ide3 17: 2200 2085 IO-APIC-level eth0 18: 7 7 IO-APIC-level ncr53c8xx NMI: 0 ERR: 0 = /proc/modules nfsd 144996 8 (autoclean) lockd 32712 0 (autoclean) [nfsd] sunrpc 56004 0 (autoclean) [nfsd lockd] eepro100 16568 1 (autoclean) raid1 8292 1 ncr53c8xx 53392 0 (unused) sd_mod 17512 0 (unused) scsi_mod 61880 2 [ncr53c8xx sd_mod] Best Regards, -- W [EMAIL PROTECTED] |O-O| Hisaaki Shibata @ Fukuoka-shi, JAPAN 0(mmm)0 P-mail: 070-5419-3233IRC: #luky ~http://his.luky.org/ last update:2000.3.12 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
stuck on TLB IPI wait (CPU#0) at 2.2.17+reiserfs+ide+raid
Hi! few weeks ago, I installed a PROMISE Ultra66 IDE card into my SMP Linux box. But my box sometimes hang up at high load avarage with "stuck on TLB IPI wait (CPU#0)" messages. I upgrade my kernel to 2.2.17 but it also hangs. My kernel is linux-2.2.17 with following pathes. linux-2.2.17-reiserfs-3.5.25-patch.gz ide.2.2.17.all.2904.patch.bz2 raid-2.2.17-A0 Without reiserFS and ide patch, My box worked very well at 2.2.16+raid patch. Please show me what to report to contribute to kernel hackers. Some infomation; = /proc/ide/pdc202xx PDC20262 Chipset. --- General Status --- Burst Mode : enabled Host Mode: Normal Bus Clocking : 33 PCI Internal IO pad select: 4 mA Status Polling Period: 0 Interrupt Check Status Polling Delay : 0 --- Primary Channel Secondary Channel --- enabled enabled 66 Clocking enabled enabled Mode MASTER Mode MASTER FIFO Empty FIFO Empty --- drive0 - drive1 drive0 -- drive1 DMA enabled:yes no yes no DMA Mode: UDMA 4 NOTSET UDMA 4NOTSET PIO Mode: PIO 4NOTSET PIO 4NOTSET = /proc/mdstat Personalities : [raid1] read_ahead 1024 sectors md0 : active raid1 hdg4[1] hde4[0] 15607040 blocks [2/2] [UU] resync=34% finish=110.1min unused devices: none = /proc/version Linux version 2.2.17-reiserfs-3.5.25-ide.all.2904-RAID ([EMAIL PROTECTED]) (gcc version 2.95.3 19991030 (prerelease)) #2 SMP Sat Sep 9 17:44:48 JST 2000 = /proc/interrupts CPU0 CPU1 0: 195968 196009IO-APIC-edge timer 1:301276IO-APIC-edge keyboard 2: 0 0 XT-PIC cascade 8: 0 1IO-APIC-edge rtc 13: 1 0 XT-PIC fpu 15: 0 0IO-APIC-edge ide1 16: 271935 271902 IO-APIC-level ide2, ide3 17: 2200 2085 IO-APIC-level eth0 18: 7 7 IO-APIC-level ncr53c8xx NMI: 0 ERR: 0 = /proc/modules nfsd 144996 8 (autoclean) lockd 32712 0 (autoclean) [nfsd] sunrpc 56004 0 (autoclean) [nfsd lockd] eepro100 16568 1 (autoclean) raid1 8292 1 ncr53c8xx 53392 0 (unused) sd_mod 17512 0 (unused) scsi_mod 61880 2 [ncr53c8xx sd_mod] Best Regards, -- W [EMAIL PROTECTED] |O-O| Hisaaki Shibata @ Fukuoka-shi, JAPAN 0(mmm)0 P-mail: 070-5419-3233IRC: #luky ~http://his.luky.org/ last update:2000.3.12 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
