fallocate() was oopsing on ocfs2 because we were passing in a
NULL file pointer.
Signed-off-by: Sunil Mushran sunil.mush...@oracle.com
---
fs/ocfs2/file.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 061591a..8f30e74 100644
---
Comments inlined.
On 01/28/2012 06:13 PM, Srinivas Eeda wrote:
When ocfs2dc thread holds dc_task_lock spinlock and receives soft IRQ for
I/O completion it deadlock itself trying to get same spinlock in
ocfs2_wake_downconvert_thread
The patch disables interrupts when acquiring dc_task_lock
When ocfs2dc thread holds dc_task_lock spinlock and receives soft IRQ it
deadlock itself trying to get same spinlock in ocfs2_wake_downconvert_thread.
Below is the stack snippet.
The patch disables interrupts when acquiring dc_task_lock spinlock.
ocfs2_wake_downconvert_thread
When ocfs2dc thread holds dc_task_lock spinlock and receives soft IRQ it
deadlock itself trying to get same spinlock in ocfs2_wake_downconvert_thread.
Below is the stack snippet.
The patch disables interrupts when acquiring dc_task_lock spinlock.
ocfs2_wake_downconvert_thread
sorry ignore this patch, resent another one after adding the new line.
On 1/30/2012 9:47 PM, Srinivas Eeda wrote:
When ocfs2dc thread holds dc_task_lock spinlock and receives soft IRQ it
deadlock itself trying to get same spinlock in ocfs2_wake_downconvert_thread.
Below is the stack snippet.
A tiny race between BAST and unlock message causes the NULL dereference.
A node sends an unlock request to master and receives a response. Before
processing the response it receives a BAST from the master. Since both requests
are processed by different threads it creates a race. While the BAST is
