Bug 485066
| Summary: | GPF: ext3 related maybe | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Juta Sirakas <mm391459> |
| Component: | kernel | Assignee: | Eric Sandeen <esandeen> |
| Status: | CLOSED WONTFIX | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | urgent | Docs Contact: | |
| Priority: | low | ||
| Version: | 10 | CC: | kernel-maint |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2009-12-18 07:53:34 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
|
Description
Juta Sirakas
2009-02-11 13:51:22 UTC
cmpq $0x0,0x28(%rbx)
%rbx contains garbage, should contain the address of the ext3 inode's i_block_alloc_info
fs/ext3/balloc.c:460:
void ext3_discard_reservation(struct inode *inode)
{
<------>struct ext3_inode_info *ei = EXT3_I(inode);
<------>struct ext3_block_alloc_info *block_i = ei->i_block_alloc_info;
<------>struct ext3_reserve_window_node *rsv;
<------>spinlock_t *rsv_lock = &EXT3_SB(inode->i_sb)->s_rsv_window_lock;
<------>if (!block_i) <== block_i is in %rbx
<------><------>return;
<------>rsv = &block_i->rsv_window_node;
<------>if (!rsv_is_empty(&rsv->rsv_window)) { <=== 460
Offhand seems like this must be memory corruption of some sort, i_block_alloc_info is only assigned NULL or the results of kmalloc:
0 fs/ext3/balloc.c ext3_init_block_alloc_info 287 ei->i_block_alloc_info = block_i;
1 fs/ext3/ialloc.c ext3_new_inode 583 ei->i_block_alloc_info = NULL;
2 fs/ext3/inode.c ext3_read_inode 2673 ei->i_block_alloc_info = NULL;
3 fs/ext3/super.c ext3_alloc_inode 459 ei->i_block_alloc_info = NULL;
4 fs/ext3/super.c ext3_clear_inode 518 EXT3_I(inode)->i_block_alloc_info = NULL;
where the first line above is set from ext3_init_block_alloc_info():
block_i = kmalloc(sizeof(*block_i), GFP_NOFS);
...
ei->i_block_alloc_info = block_i;
Running kernel-debug may catch this sooner or with more information...
This message is a reminder that Fedora 10 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 10. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '10'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 10's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 10 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the applicable version. If you are unable to change the version, please add a comment here and someone will do it for you. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. The process we are following is described here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping Fedora 10 changed to end-of-life (EOL) status on 2009-12-17. Fedora 10 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed. |