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| author |  Helge Deller <deller@gmx.de>
| 2024-01-22 23:15:48 +0100 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de>
| 2024-02-27 22:51:44 +0100 |
| commit | 94a1b192290c9fdb33085ecacf82afb27bd63fa8 (patch) | |
| tree | 52777647c2892cde4ce61563f869a803947c73eb /arch/parisc | |
| parent | parisc: Use irq_enter_rcu() to fix warning at kernel/context_tracking.c:367 (diff) | |
| download | linux-94a1b192290c9fdb33085ecacf82afb27bd63fa8.tar.gz linux-94a1b192290c9fdb33085ecacf82afb27bd63fa8.tar.bz2 linux-94a1b192290c9fdb33085ecacf82afb27bd63fa8.zip | |
parisc: Show kernel unaligned memory accesses
Warn if some kernel function triggers unaligned memory accesses.
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/kernel/unaligned.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c index c520e551a165..95a2741f26f3 100644 --- a/arch/parisc/kernel/unaligned.c +++ b/arch/parisc/kernel/unaligned.c @@ -399,6 +399,13 @@ void handle_unaligned(struct pt_regs *regs) if (!unaligned_enabled) goto force_sigbus; + } else { + static DEFINE_RATELIMIT_STATE(kernel_ratelimit, 5 * HZ, 5); + if (!(current->thread.flags & PARISC_UAC_NOPRINT) && + __ratelimit(&kernel_ratelimit)) + pr_warn("Kernel: unaligned access to " RFMT " in %pS " + "(iir " RFMT ")\n", + regs->ior, (void *)regs->iaoq[0], regs->iir); } /* handle modification - OK, it's ugly, see the instruction manual */ |