# Segmentation fault when loading fixtures **URL:** \ **Category:** Rails\ **Created:** [September 25, 2009, 11:15pm UTC](https://www.ruby-forum.com/t/segmentation-fault-when-loading-fixtures/176186 "2009-09-25T23:15:28Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![russianbandit](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/e36b37/32.png) [@russianbandit](https://www.ruby-forum.com/u/russianbandit)\ **Post date:** [September 25, 2009, 11:15pm UTC](https://www.ruby-forum.com/t/segmentation-fault-when-loading-fixtures/176186/1 "2009-09-25T23:15:28Z")
I created some performance fixtures that load around 100k+ items through a fixture. While the fixture is loading I get a seg fault: /ruby/lib/ruby/1.8/yaml.rb:133: [BUG] Segmentation fault Would anyone be able to shine some light on this problem? Can fixtures not load that much data? What are my alternatives to load performance data? ---
**Author:** ![russianbandit](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/e36b37/32.png) [@russianbandit](https://www.ruby-forum.com/u/russianbandit)\ **Post date:** [September 25, 2009, 11:19pm UTC](https://www.ruby-forum.com/t/segmentation-fault-when-loading-fixtures/176186/2 "2009-09-25T23:19:58Z")
Greg L. wrote: > I created some performance fixtures that load around 100k+ items through > a fixture. While the fixture is loading I get a seg fault: > /ruby/lib/ruby/1.8/yaml.rb:133: [BUG] Segmentation fault > > Would anyone be able to shine some light on this problem? Can fixtures > not load that much data? Is the process running out of memory, perhaps? > What are my alternatives to load performance > data? Machinist and Faker might be worth a look. ## Best, Marnen Laibow-Koser [http://www.marnen.org](http://www.marnen.org) removed\_email\_address@domain.invalid ---
**Author:** ![russianbandit](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/e36b37/32.png) [@russianbandit](https://www.ruby-forum.com/u/russianbandit)\ **Post date:** [September 25, 2009, 11:28pm UTC](https://www.ruby-forum.com/t/segmentation-fault-when-loading-fixtures/176186/3 "2009-09-25T23:28:32Z")
Marnen Laibow-Koser wrote: > Is the process running out of memory, perhaps? I’m on windows XP and used the Task Manager to see if memory was peaking out, it wasn’t. How else can I tell if a specific process is running out of memory? ---
**Author:** ![russianbandit](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/e36b37/32.png) [@russianbandit](https://www.ruby-forum.com/u/russianbandit)\ **Post date:** [September 26, 2009, 12:46am UTC](https://www.ruby-forum.com/t/segmentation-fault-when-loading-fixtures/176186/4 "2009-09-26T00:46:25Z")
On Fri, Sep 25, 2009 at 4:28 PM, Greg L. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > I’m on windows XP and used the Task Manager to see if memory was peaking > out, it wasn’t. How else can I tell if a specific process is running out > of memory? Can you do smaller load tests and extrapolate up from there ? Does 10K also segfault? – Greg D. [http://destiney.com/](http://destiney.com/) ---
**Author:** ![russianbandit](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/e36b37/32.png) [@russianbandit](https://www.ruby-forum.com/u/russianbandit)\ **Post date:** [September 26, 2009, 12:50am UTC](https://www.ruby-forum.com/t/segmentation-fault-when-loading-fixtures/176186/5 "2009-09-26T00:50:59Z")
I successfully loaded about 35K records. It’s really when it gets above 100k that it seg faults. ---
**Author:** ![russianbandit](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/e36b37/32.png) [@russianbandit](https://www.ruby-forum.com/u/russianbandit)\ **Post date:** [September 26, 2009, 2:01am UTC](https://www.ruby-forum.com/t/segmentation-fault-when-loading-fixtures/176186/6 "2009-09-26T02:01:59Z")
On Fri, Sep 25, 2009 at 3:50 PM, Greg L. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > I successfully loaded about 35K records. It’s really when it gets above > 100k that it seg faults. What version of Ruby are you on? Could it be a particular fixture that is segfaulting YAML? Can you do a binary search and pinpoint exactly how many fixtures until segfault? Colin ---
**Author:** ![russianbandit](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/e36b37/32.png) [@russianbandit](https://www.ruby-forum.com/u/russianbandit)\ **Post date:** [September 28, 2009, 6:34pm UTC](https://www.ruby-forum.com/t/segmentation-fault-when-loading-fixtures/176186/7 "2009-09-28T18:34:46Z")
Colin C. wrote: > On Fri, Sep 25, 2009 at 3:50 PM, Greg L. > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > I successfully loaded about 35K records. It’s really when it gets above > > 100k that it seg faults. > > What version of Ruby are you on? Could it be a particular fixture that > is segfaulting YAML? Can you do a binary search and pinpoint exactly > how many fixtures until segfault? > > Colin I’m using ruby 1.8.6 on Windows. My fixture loads records in a loop. I think around 60K the seg fault occurs. This happens to two different fixture files. I’m really starting to think it’s a memory issue. How can I increase the amount of memory being used by the process?