Messages in this thread | | | Date | Thu, 16 Oct 2003 09:52:30 -0200 (BRST) | From | Marcelo Tosatti <> | Subject | 2.4.23-pre VM regression? |
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Andrea,
Martin first reported problems with "gzip -dc file | less" (280MB file). less was getting killed. He had no swap... I asked him to add some swap and it works now. Fine.
The thing is that with 2.4.22 less was being killed, but with 2.4.23-pre he gets:
>> And yes, the app was killed: > > > > __alloc_pages: 0-order allocation failed (gfp=0x1d2/0) > > VM: killing process named > > __alloc_pages: 0-order allocation failed (gfp=0x1d2/0) > > VM: killing process gpm > > __alloc_pages: 0-order allocation failed (gfp=0x1d2/0) > > VM: killing process sendmail > > __alloc_pages: 0-order allocation failed (gfp=0x1d2/0) > > VM: killing process less
So a lot of processes which should not get killed are dying. This is really bad. I was afraid it could happen and it did.
What now? Resurrect OOM-killer?
> > Hi, > > it's a long time I haven't seen sthis messages, but it just happened that > > I did on my laptop ASUS L3880C(1GB RAM). The message show on > > 2.4.23-pre5+acpi20030918 and 2.4.23-pre7. The application get's killed on > > 2.4.22-acpi20030918 too, just without the "0-order allocation" message. > > I enabled in kernel the VM allocation debug option when configuring, but > > apparently I have to turn it on also somewhere else. *Documentation* is > > missing: 1) the help in "make config/menuconfig" etc. doesn't say anything, > > the Documentation subdirectory doesn't say anything except "debug" as > > kernel boot option on command-line(I did that too, but no change) and also > > linux kernel-FAQ doesn't say either. :( > > > > How I tested? > > `gzip -dc file | less' and pressed `G' to jump to the very end of the file. > > The filesize is 280MB only. In a while, the mouse stopps moving for a > > while, than the system gets sometimes unloaded, fan is raises it's RPM's up > > and down town to time, and mouse cursor eventually does a move and then > > less command gets killed. In dmesg I found: > > > > __alloc_pages: 0-order allocation failed (gfp=0x1d2/0) > > VM: killing process less
With 2.4.22:
> 2.4.22-acpi-20030918 with HIGHMEM gives only in dmesg: > > Out of Memory: Killed process 1904 (less).
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