Opened 14 years ago
Closed 14 years ago
#239 closed defect (fixed)
page_ht_lock mutex taken while tlblock spinlock held
| Reported by: | Jakub Jermář | Owned by: | |
|---|---|---|---|
| Priority: | major | Milestone: | 0.4.3 |
| Component: | helenos/kernel/generic | Version: | mainline |
| Keywords: | Cc: | ||
| Blocker for: | Depends on: | ||
| See also: |
Description
On architectures with the global hash page table (i.e. sparc64 and ia64), the address space management code can take a mutex while holding a spinlock.
This happens during the TLB shootdown sequence when the tlblock spinlock is locked first in tlb_shootdown_start() and then the page_ht_lock() mutex is attempted in page_table_lock(). Functions that contain this pattern are:
as_area_resize()
as_area_destroy()
as_area_change_flags()
Change History (2)
comment:1 by , 14 years ago
comment:2 by , 14 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
Note:
See TracTickets
for help on using tickets.
Fixed in changeset:head,447.