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http://issues.apache.org/bugzilla/show_bug.cgi?id=43352 Summary: Apache2: out of memory during heavy webdav files copy using SSL Product: Apache httpd-2 Version: 2.2.6 Platform: PC OS/Version: Linux Status: NEW Severity: normal Priority: P3 Component: mod_ssl AssignedTo: [email protected] ReportedBy: [EMAIL PROTECTED] 0. I'm using a Gentoo Linux box (2.6.22-gentoo-r5). I experienced the problem using mpm_prefork and mpm_worker. The problem is always reproducible using the following steps. 1.install Apache2 2.2.6(2)(09:34:11 09/10/07) (-debug doc ldap -mpm-event -mpm-itk -mpm-peruser -mpm-prefork mpm-worker -no-suexec -selinux ssl -static-modules -threads) 2.enable webdav support ipaq ~ # grep ^APACHE2_OPTS /etc/conf.d/apache2 APACHE2_OPTS="-D INFO -D LANGUAGE -D MANUAL -D SUEXEC -D PHP5 -D SSL -D DAV -D DAV_FS" and enable a webdav over ssl in the default virtual host config file: Listen 443 <VirtualHost _default_:443> ServerAdmin [EMAIL PROTECTED] DocumentRoot /var/www/www.mydomain.it/htdocs ServerName www.mydomain.it ErrorLog logs/ssl.err TransferLog logs/ssl.log <Directory "/var/www/www.mydomain.it/htdocs"> Options Indexes FollowSymLinks AllowOverride Limit Order allow,deny Allow from all </Directory> <IfModule mod_dav.c> Alias /dav /var/www/www.mydomain.it/htdocs/dav DavMinTimeout 600 <Location /dav> Options None Indexes Dav On LimitXMLRequestBody 1000000 DavMinTimeout 30 DavDepthInfinity off <Limit GET PUT POST DELETE PROPFIND PROPPATCH MKCOL COPY MOVE LOCK UNLOCK> AuthType Basic AuthName "WebDav Restricted Repository" AuthUserFile /var/www/www.mydomain.it/davpwd/.davpwd Require valid-user </Limit> </Location> </IfModule> </VirtualHost> 3. on your client create some data to be transfered to the webdav server [EMAIL PROTECTED] ~ $ mkdir ~dav [EMAIL PROTECTED] ~ $ cd dav [EMAIL PROTECTED] ~dav $ wget http://downloads.sourceforge.net/filezilla/FileZilla_3.0.0_i586-linux-gnu.tar.bz2 [EMAIL PROTECTED] ~dav $ wget http://heanet.dl.sourceforge.net/sourceforge/htop/htop-0.6.6.tar.gz [EMAIL PROTECTED] ~dav $ wget http://mirror.tomato.it/apache/httpd/httpd-2.2.6.tar.bz2 [EMAIL PROTECTED] ~dav $ wget http://hem.bredband.net/jpgraph/jpgraph-1.21b.tar.gz [EMAIL PROTECTED] ~dav $ wget http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.22.6.tar.bz2 untar all the files 4. open Konqueror on the client and try to copy dav folder to you webdav server using ssl: webdavs://[EMAIL PROTECTED]/dav The Linux server after a while experienced an out of memory condition (I have just 384MB RAM and 512MB swap area). In the Apache log file no error was found. The web server for a about 3/4 minutes (on a PIII 700MHZ) is unavailable and then come back online without service restart. In the /var/log/messages I can see a lot of errors as this one: Sep 11 10:18:08 ipaq apache2 invoked oom-killer: gfp_mask=0x201d2, order=0, oomkilladj=0 Sep 11 10:18:19 ipaq [<c013cecc>] out_of_memory+0x69/0x189 Sep 11 10:18:32 ipaq [<c013e35f>] __alloc_pages+0x203/0x28d Sep 11 10:18:40 ipaq [<c013f866>] __do_page_cache_readahead+0xbd/0x1dd Sep 11 10:18:40 ipaq [<c01aee2e>] ext3_get_block+0x0/0xd0 Sep 11 10:18:40 ipaq [<c040e81a>] io_schedule+0x1d/0x27 Sep 11 10:18:40 ipaq [<c040e9fc>] __wait_on_bit_lock+0x4b/0x52 Sep 11 10:18:40 ipaq [<c013a218>] __lock_page+0x58/0x5e Sep 11 10:18:40 ipaq [<c013c3e4>] filemap_nopage+0x152/0x2a4 Sep 11 10:18:40 ipaq [<c014563d>] __handle_mm_fault+0x15d/0x7f3 Sep 11 10:18:40 ipaq [<c0121ba9>] run_timer_softirq+0x126/0x154 Sep 11 10:18:40 ipaq [<c011d2f4>] do_wait+0x918/0x9ae Sep 11 10:18:40 ipaq [<c0410d7d>] do_page_fault+0x20d/0x52b Sep 11 10:18:40 ipaq [<c015f6a9>] sys_select+0x161/0x187 Sep 11 10:18:40 ipaq [<c0410b70>] do_page_fault+0x0/0x52b Sep 11 10:18:40 ipaq [<c040f9aa>] error_code+0x72/0x78 Sep 11 10:18:40 ipaq [<c0400000>] xprt_connect+0xe/0xfb Sep 11 10:18:40 ipaq ======================= Sep 11 10:18:40 ipaq Mem-info: Sep 11 10:18:40 ipaq DMA per-cpu: Sep 11 10:18:40 ipaq CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Sep 11 10:18:40 ipaq Normal per-cpu: Sep 11 10:18:40 ipaq CPU 0: Hot: hi: 186, btch: 31 usd: 172 Cold: hi: 62, btch: 15 usd: 0 Sep 11 10:18:40 ipaq Active:44644 inactive:44277 dirty:0 writeback:0 unstable:0 Sep 11 10:18:40 ipaq free:995 slab:1904 mapped:8 pagetables:482 bounce:0 Sep 11 10:18:40 ipaq DMA free:1552kB min:104kB low:128kB high:156kB active:4792kB inactive:4348kB present:16256kB pages_scanned:15967 all_unreclaimable? yes Sep 11 10:18:40 ipaq lowmem_reserve[]: 0 364 364 Sep 11 10:18:40 ipaq Normal free:2428kB min:2384kB low:2980kB high:3576kB active:173784kB inactive:172760kB present:372872kB pages_scanned:624531 all_unreclaimable? yes Sep 11 10:18:40 ipaq lowmem_reserve[]: 0 0 0 Sep 11 10:18:40 ipaq DMA: 0*4kB 0*8kB 1*16kB 0*32kB 0*64kB 0*128kB 0*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 1552kB Sep 11 10:18:40 ipaq Normal: 1*4kB 10*8kB 1*16kB 0*32kB 0*64kB 0*128kB 1*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 2404kB Sep 11 10:18:40 ipaq Swap cache: add 132564, delete 132564, find 1783/2473, race 0+6 Sep 11 10:18:40 ipaq Free swap = 0kB Sep 11 10:18:40 ipaq Total swap = 506512kB Sep 11 10:18:40 ipaq Free swap: 0kB Sep 11 10:18:40 ipaq 98048 pages of RAM Sep 11 10:18:40 ipaq 0 pages of HIGHMEM Sep 11 10:18:40 ipaq 2364 reserved pages Sep 11 10:18:40 ipaq 2599 pages shared Sep 11 10:18:40 ipaq 0 pages swap cached Sep 11 10:18:40 ipaq 0 pages dirty Sep 11 10:18:40 ipaq 0 pages writeback Sep 11 10:18:40 ipaq 8 pages mapped Sep 11 10:18:40 ipaq 1904 pages slab Sep 11 10:18:40 ipaq 482 pages pagetables Sep 11 10:18:51 ipaq Out of memory: kill process 8698 (apache2) score 272698 or a child Sep 11 10:19:46 ipaq Killed process 8699 (apache2) Sep 11 10:20:58 ipaq syslog-ng invoked oom-killer: gfp_mask=0x201d2, order=0, oomkilladj=0 5. open Konqueror on the client and try to copy dav folder to the web server _without_ ssl: webdav://[EMAIL PROTECTED]/dav The copy go well. No error found. -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
