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| author | Chris Metcalf <cmetcalf@ezchip.com> | 2015-05-07 14:34:59 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@ezchip.com> | 2015-05-11 11:22:37 -0400 |
| commit | e8200baa2fd2e9c4bc7abd824a9e675d914e54a0 (patch) | |
| tree | 15f8d8ddcbb284afae5b6f3000743c28209f3314 /arch/tile/kernel | |
| parent | 9a5d2cbe6a1623dadfd93007382b0d12d6bac894 (diff) | |
| download | lwn-e8200baa2fd2e9c4bc7abd824a9e675d914e54a0.tar.gz lwn-e8200baa2fd2e9c4bc7abd824a9e675d914e54a0.zip | |
tile: fix "odd fault" warning for stack backtraces
We were setting ex1 in new kernel threads to KERNEL_PL.
But since we just do a simple context-switch, not an iret,
any value set here is ignored anyway, and its presence causes
stack backtraces to end with a warning about an "odd fault".
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
Diffstat (limited to 'arch/tile/kernel')
| -rw-r--r-- | arch/tile/kernel/process.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c index 0dddcf7e5bfa..96ea75e04582 100644 --- a/arch/tile/kernel/process.c +++ b/arch/tile/kernel/process.c @@ -133,7 +133,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, (CALLEE_SAVED_REGS_COUNT - 2) * sizeof(unsigned long)); callee_regs[0] = sp; /* r30 = function */ callee_regs[1] = arg; /* r31 = arg */ - childregs->ex1 = PL_ICS_EX1(KERNEL_PL, 0); p->thread.pc = (unsigned long) ret_from_kernel_thread; return 0; } |