Allow sysadmin to disable all warnings about userland apps making unaligned accesses by using: # echo 1 > /proc/sys/kernel/ignore-unaligned-usertrap Rather than having to use prctl on a process by process basis. Default behaivour leaves the warnings enabled.
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| @@ -124,6 +124,10 @@ extern int sysctl_hz_timer; · 123 unmodified lines | |||
| 124 | extern int acct_parm[]; | 124 | extern int acct_parm[]; |
| 125 | #endif | 125 | #endif |
| 126 | 126 | ||
| 127 | #ifdef CONFIG_IA64 | ||
| 128 | extern int no_unaligned_warning; | ||
| 129 | #endif | ||
| 130 | |||
| 127 | static int parse_table(int __user *, int, void __user *, size_t __user *, void __user *, size_t, | 131 | static int parse_table(int __user *, int, void __user *, size_t __user *, void __user *, size_t, |
| 128 | ctl_table *, void **); | 132 | ctl_table *, void **); |
| 129 | static int proc_doutsstring(ctl_table *table, int write, struct file *filp, | 133 | static int proc_doutsstring(ctl_table *table, int write, struct file *filp, |
| @@ -665,6 +669,16 @@ static ctl_table kern_table[] = { · 535 unmodified lines | |||
| 665 | .mode = 0644, | 669 | .mode = 0644, |
| 666 | .proc_handler = &proc_dointvec, | 670 | .proc_handler = &proc_dointvec, |
| 667 | }, | 671 | }, |
| 672 | #endif | ||
| 673 | #ifdef CONFIG_IA64 | ||
| 674 | { | ||
| 675 | .ctl_name = KERN_IA64_UNALIGNED, | ||
| 676 | .procname = "ignore-unaligned-usertrap", | ||
| 677 | .data = &no_unaligned_warning, | ||
| 678 | .maxlen = sizeof (int), | ||
| 679 | .mode = 0644, | ||
| 680 | .proc_handler = &proc_dointvec, | ||
| 681 | }, | ||
| 668 | #endif | 682 | #endif |
| 669 | { .ctl_name = 0 } | 683 | { .ctl_name = 0 } |
| 670 | }; | 684 | }; |