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arm64: Show three registers per line 

Displaying two registers per line takes 15 lines.  That improves to just
10 lines if we display three registers per line, which reduces the amount
of information lost when oopses are cut off.  It stays within 80 columns
and matches x86-64.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210420172245.3679077-1-willy@infradead.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Matthew Wilcox (Oracle) 2021-04-20 18:22:45 +01:00 committed by Catalin Marinas
parent 4139cf940d
commit 0bca3ec846
1 changed files with 3 additions and 6 deletions
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9
arch/arm64/kernel/process.c
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@ -292,13 +292,10 @@ void __show_regs(struct pt_regs *regs)
i = top_reg;
while (i >= 0) {
printk("x%-2d: %016llx ", i, regs->regs[i]);
i--;
printk("x%-2d: %016llx", i, regs->regs[i]);
if (i % 2 == 0) {
pr_cont("x%-2d: %016llx ", i, regs->regs[i]);
i--;
}
while (i-- % 3)
pr_cont(" x%-2d: %016llx", i, regs->regs[i]);
pr_cont("\n");
}