[DiskUsage] Segment violation while navigating after 2 scans of a large partition

[oco]

The partition contains lot of files (> 500000) and was mounted ReadOnly (source trees).

It was in revision hrev42926.

Here is the gdb output :

GNU gdb 6.3 Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i586-pc-haiku"...(no debugging symbols found)

[tcsetpgrp failed in terminal_inferior: Invalid Argument] Thread 330 caused an exception: Segment violation Reading symbols from /boot/system/runtime_loader...done. Loaded symbols for /boot/system/runtime_loader Reading symbols from /boot/system/lib/libbe.so...done. Loaded symbols for /boot/system/lib/libbe.so Reading symbols from /boot/system/lib/liblocale.so...done. Loaded symbols for /boot/system/lib/liblocale.so Reading symbols from /boot/system/lib/libstdc++.hrev4.so...done. Loaded symbols for /boot/system/lib/libstdc++.hrev4.so Reading symbols from /boot/system/lib/libroot.so...done. Loaded symbols for /boot/system/lib/libroot.so Reading symbols from /boot/system/lib/libicudata.so.48.1...done. Loaded symbols for /boot/system/lib/libicudata.so.48.1 Reading symbols from /boot/system/lib/libicui18n.so.48.1...done. Loaded symbols for /boot/system/lib/libicui18n.so.48.1 Reading symbols from /boot/system/lib/libicuio.so.48.1...done. Loaded symbols for /boot/system/lib/libicuio.so.48.1 Reading symbols from /boot/system/lib/libicule.so.48.1...done. Loaded symbols for /boot/system/lib/libicule.so.48.1 Reading symbols from /boot/system/lib/libiculx.so.48.1...done. Loaded symbols for /boot/system/lib/libiculx.so.48.1 Reading symbols from /boot/system/lib/libicutu.so.48.1...done. Loaded symbols for /boot/system/lib/libicutu.so.48.1 Reading symbols from /boot/system/lib/libicuuc.so.48.1...done. Loaded symbols for /boot/system/lib/libicuuc.so.48.1 Reading symbols from /boot/system/lib/libroot-addon-icu.so...done. Loaded symbols for /boot/system/lib/libroot-addon-icu.so [tcsetpgrp failed in terminal_inferior: Invalid Argument] [Switching to team /boot/system/apps/DiskUsage (326) thread w>DiskUsage (330)] 0x0021760e in PieView::_DrawDirectory () (gdb) bt #0 0x0021760e in PieView::_DrawDirectory () #1 0x002165d7 in PieView::_DrawPieChart () #2 0x00215f08 in PieView::Draw () #3 0x003c5ae0 in BView::_Draw () from /boot/system/lib/libbe.so #4 0x003caf11 in BWindow::DispatchMessage () from /boot/system/lib/libbe.so #5 0x003cf544 in BWindow::task_looper () from /boot/system/lib/libbe.so #6 0x002fb117 in BLooper::_task0_ () from /boot/system/lib/libbe.so #7 0x0057d95f in thread_entry () from /boot/system/lib/libroot.so #8 0x78033fec in ?? () (gdb) GNU gdb 6.3 Undefined command: "GNU". Try "help". (gdb) Copyright 2004 Free Software Foundation, Inc. Undefined command: "Copyright". Try "help". (gdb) GDB is free software, covered by the GNU General Public License, and you are Undefined command: "GDB". Try "help". (gdb) welcome to change it and/or distribute copies of it under certain conditions. Undefined command: "welcome". Try "help". (gdb) Type "show copying" to see the conditions. Undefined command: "Type". Try "help". (gdb) There is absolutely no warranty for GDB. Type "show warranty" for details. Undefined command: "There". Try "help". (gdb) This GDB was configured as "i586-pc-haiku"...(no debugging symbols found) Undefined command: "This". Try "help". (gdb) Undefined command: "This". Try "help". (gdb) [tcsetpgrp failed in terminal_inferior: Invalid Argument] Undefined command: "". Try "help". (gdb) Thread 330 caused an exception: Segment violation A syntax error in expression, near `caused an exception: Segment violation'. (gdb) Reading symbols from /boot/system/runtime_loader...done. Undefined command: "Reading". Try "help". (gdb) Loaded symbols for /boot/system/runtime_loader Undefined command: "Loaded". Try "help". (gdb) Reading symbols from /boot/system/lib/libbe.so...done. Undefined command: "Reading". Try "help". (gdb) Loaded symbols for /boot/system/lib/libbe.so Undefined command: "Loaded". Try "help". (gdb) Reading symbols from /boot/system/lib/liblocale.so...done. Undefined command: "Reading". Try "help". (gdb) Loaded symbols for /boot/system/lib/liblocale.so Undefined command: "Loaded". Try "help". (gdb) Reading symbols from /boot/system/lib/libstdc++.hrev4.so...done. Undefined command: "Reading". Try "help". (gdb) Loaded symbols for /boot/system/lib/libstdc++.hrev4.so Undefined command: "Loaded". Try "help". (gdb) Reading symbols from /boot/system/lib/libroot.so...done. Undefined command: "Reading". Try "help". (gdb) Loaded symbols for /boot/system/lib/libroot.so Undefined command: "Loaded". Try "help". (gdb) Reading symbols from /boot/system/lib/libicudata.so.48.1...done. Undefined command: "Reading". Try "help". (gdb) Loaded symbols for /boot/system/lib/libicudata.so.48.1 Undefined command: "Loaded". Try "help". (gdb) Reading symbols from /boot/system/lib/libicui18n.so.48.1...done. Undefined command: "Reading". Try "help". (gdb) Loaded symbols for /boot/system/lib/libicui18n.so.48.1 Undefined command: "Loaded". Try "help". (gdb) Reading symbols from /boot/system/lib/libicuio.so.48.1...done. Undefined command: "Reading". Try "help". (gdb) Loaded symbols for /boot/system/lib/libicuio.so.48.1 Undefined command: "Loaded". Try "help". (gdb) Reading symbols from /boot/system/lib/libicule.so.48.1...done. Undefined command: "Reading". Try "help". (gdb) Loaded symbols for /boot/system/lib/libicule.so.48.1 Undefined command: "Loaded". Try "help". (gdb) Reading symbols from /boot/system/lib/libiculx.so.48.1...done. Undefined command: "Reading". Try "help". (gdb) Loaded symbols for /boot/system/lib/libiculx.so.48.1 Undefined command: "Loaded". Try "help". (gdb) Reading symbols from /boot/system/lib/libicutu.so.48.1...done. Undefined command: "Reading". Try "help". (gdb) Loaded symbols for /boot/system/lib/libicutu.so.48.1 Undefined command: "Loaded". Try "help". (gdb) Reading symbols from /boot/system/lib/libicuuc.so.48.1...done. Undefined command: "Reading". Try "help". (gdb) Loaded symbols for /boot/system/lib/libicuuc.so.48.1 Undefined command: "Loaded". Try "help". (gdb) Reading symbols from /boot/system/lib/libroot-addon-icu.so...done. Undefined command: "Reading". Try "help". (gdb) Loaded symbols for /boot/system/lib/libroot-addon-icu.so Undefined command: "Loaded". Try "help". (gdb) [tcsetpgrp failed in terminal_inferior: Invalid Argument] Undefined command: "". Try "help". (gdb) [Switching to team /boot/system/apps/DiskUsage (326) thread w>DiskUsage (330)] Undefined command: "". Try "help". (gdb) 0x0021760e in PieView::_DrawDirectory () Undefined command: "0x0021760e". Try "help". (gdb) (gdb) bt Undefined command: "". Try "help". (gdb) #0 0x0021760e in PieView::_DrawDirectory () (gdb) #1 0x002165d7 in PieView::_DrawPieChart () (gdb) #2 0x00215f08 in PieView::Draw () (gdb) #3 0x003c5ae0 in BView::_Draw () from /boot/system/lib/libbe.so (gdb) #4 0x003caf11 in BWindow::DispatchMessage () from /boot/system/lib/libbe.so (gdb) #5 0x003cf544 in BWindow::task_looper () from /boot/system/lib/libbe.so (gdb) #6 0x002fb117 in BLooper::_task0_ () from /boot/system/lib/libbe.so (gdb) #7 0x0057d95f in thread_entry () from /boot/system/lib/libroot.so (gdb) #8 0x78033fec in ?? () (gdb) (gdb)