command p can be used to display data of per-cpu symbol. This patch is used to hide data of offline cpus.
The original output is like below: <cut> crash> p cpu_number:a per_cpu(cpu_number, 0) = $1 = 0 per_cpu(cpu_number, 1) = $2 = 1 per_cpu(cpu_number, 2) = $3 = 2 per_cpu(cpu_number, 3) = $4 = 3 <cut> With data of offline cpu(cpu #2) hiden, the output is like below: <cut> crash> p cpu_number:a per_cpu(cpu_number, 0) = $1 = 0 per_cpu(cpu_number, 1) = $2 = 1 cpu 2 is OFFLINE. per_cpu(cpu_number, 3) = $3 = 3 <cut> Signed-off-by: Qiao Nuohan <[email protected]> --- symbols.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/symbols.c b/symbols.c index 11bae02..36031c6 100755 --- a/symbols.c +++ b/symbols.c @@ -6847,6 +6847,11 @@ display_per_cpu_info(struct syment *sp, int radix, char *cpuspec) module_symbol(sp->value, NULL, NULL, NULL, *gdb_output_radix); for (c = 0; c < kt->cpus; c++) { + if (hide_offline_cpu(c)) { + fprintf(fp, "cpu %d is OFFLINE.\n", c); + continue; + } + if (cpus && !NUM_IN_BITMAP(cpus, c)) continue; addr = sp->value + kt->__per_cpu_offset[c]; -- 1.8.5.3 -- Crash-utility mailing list [email protected] https://www.redhat.com/mailman/listinfo/crash-utility
