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Subject2.4.10aa1 - 0-order allocation failed.

Hi, Andrea,

We have next problem on our servers:

Sep 26 11:22:39 sol kernel: __alloc_pages: 0-order allocation failed (gfp=0x20/0)
Sep 26 11:22:39 sol kernel: f048dd94 e02ab000 00000000 00000020 00000000 00000020 00000020 e298f820
Sep 26 11:22:39 sol kernel: e298f844 00000001 e030a56c e030a6c4 00000020 00000000 e01382be 00000000
Sep 26 11:22:39 sol kernel: e013874a e013488c 00000000 e298f820 00000202 e298f898 00000202 00000246
Sep 26 11:22:39 sol kernel: Call Trace: [put_dirty_page+122/132] [flush_old_exec+234/572] [sys_ustat+212/268] [kill_super+232/352] [unix_gc+394/748]
Sep 26 11:22:39 sol kernel: [Unused_offset+27374/99203] [Unused_offset+12842/99203] [call_spurious_interrupt+14521/27705] [Unused_offset+43342/99203] [call_spurious_interrupt+14615/27705] [call_spurious_interrupt+16483/27705]
Sep 26 11:22:39 sol kernel: [Unused_offset+90704/99203] [ipgre_rcv+233/636] [ipgre_rcv+503/636] [fcntl_getlk+327/624] [do_invalid_TSS+43/96]
Sep 26 11:22:39 sol kernel: __alloc_pages: 0-order allocation failed (gfp=0x20/0)
Sep 26 11:22:39 sol kernel: f048ddd4 e02ab000 00000000 00000020 00000000 00000020 00000020 e298f820
Sep 26 11:22:39 sol kernel: e298f844 00000001 e030a56c e030a6c4 00000020 00000000 e01382be 00000000
Sep 26 11:22:39 sol kernel: e013874a e013488c 00000000 e298f820 00000202 e298f898 00000202 00000246
Sep 26 11:22:39 sol kernel: Call Trace: [put_dirty_page+122/132] [flush_old_exec+234/572] [sys_ustat+212/268] [kill_super+232/352] [unix_gc+394/748]
Sep 26 11:22:39 sol kernel: [Unused_offset+27374/99203] [call_spurious_interrupt+13905/27705] [call_spurious_interrupt+17048/27705] [Unused_offset+90704/99203] [ipgre_rcv+233/636] [ipgre_rcv+503/636]
Sep 26 11:22:39 sol kernel: [fcntl_getlk+327/624] [do_invalid_TSS+43/96]

Also, we see next in process status:

USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
vz 927 0.0 625.1 43900 4267034752 ? S 08:10 0:00 hits
vz 1030 0.0 625.1 43900 4267034752 ? S 08:11 0:00 hits
vz 4561 1.3 625.1 45948 4267034724 ? S 10:48 0:00 hits
root 4564 0.0 0.0 1460 548 pts/2 S 10:48 0:00 grep hits
vz 4566 0.0 625.1 45948 4267034724 ? S 10:48 0:00 hits

After these errors we see some uninterruptable processes (with flag D in
process status), gdb say that function "fdatasync" called and no returned...
Soft reboot not work.

Server has 2 CPUs (Pentium III Katmai), 2Gb RAM, 2Gb swap, Hardware
RAID (Mylex DAC960PTL1 PCI RAID Controller).

Any ideas ?

--
Oleg A. Yurlov aka Kris Werewolf, SysAdmin OAY100-RIPN
mailto:kris@spylog.com +7 095 332-03-88

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