Patch [1] enables kmem to print task context if the given virtual address is a vmalloced stack.
This patch handles the same issue except the given address is physical address. Before: crash> kmem 1883700e28 VMAP_AREA VM_STRUCT ADDRESS RANGE SIZE ffff94eb9102c640 ffff94eb9102b140 ffffb7efce9b8000 - ffffb7efce9bd000 20480 PAGE PHYSICAL MAPPING INDEX CNT FLAGS ffffdd28220dc000 1883700000 0 0 1 50000000000000 After: crash> kmem 1883700e28 PID: 847 COMMAND: "khungtaskd" TASK: ffff94f8038f4000 [THREAD_INFO: ffff94f8038f4000] CPU: 72 STATE: TASK_RUNNING (PANIC) VMAP_AREA VM_STRUCT ADDRESS RANGE SIZE ffff94eb9102c640 ffff94eb9102b140 ffffb7efce9b8000 - ffffb7efce9bd000 20480 PAGE PHYSICAL MAPPING INDEX CNT FLAGS ffffdd28220dc000 1883700000 0 0 1 50000000000000 [1]: https://listman.redhat.com/archives/crash-utility/2022-August/010074.html Signed-off-by: Tao Liu <l...@redhat.com> --- memory.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/memory.c b/memory.c index 1b6f9ba..eac8262 100644 --- a/memory.c +++ b/memory.c @@ -13506,6 +13506,10 @@ kmem_search(struct meminfo *mi) mi->flags &= ~GET_PHYS_TO_VMALLOC; if (mi->retval) { + if ((task = stkptr_to_task(mi->retval)) && (tc = task_to_context(task))) { + show_context(tc); + fprintf(fp, "\n"); + } if ((sp = value_search(mi->retval, &offset))) { show_symbol(sp, offset, SHOW_LINENUM | SHOW_RADIX()); -- 2.33.1 -- Crash-utility mailing list Crash-utility@redhat.com https://listman.redhat.com/mailman/listinfo/crash-utility Contribution Guidelines: https://github.com/crash-utility/crash/wiki