spl: make 'spl_panic_halt' working for all cases

The default behavior where the serious ZFS errors cause FS thread to stuck is very bad for some production scenario. In some production scenarios (Linux), it is recommended to make real kernel PANIC, where system can be rebooted by watchdog or kernel itself. This patch enables coherent handling of spl_panic_halt parameter. Reviewed by: Brian Behlendorf <[email protected]> Authored-by: Wojciech Nizinski <[email protected]> Signed-off-by: szubersk <[email protected]> Closes openzfs#12120 Closes openzfs#13109
andrewc12 · Sep 23, 2022 · d5fc2e4 · d5fc2e4
1 parent 9490443
commit d5fc2e4
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/module/os/linux/spl/spl-err.c b/module/os/linux/spl/spl-err.c
@@ -100,6 +100,9 @@ vcmn_err(int ce, const char *fmt, va_list ap)
 		break;
 	case CE_PANIC:
 		printk(KERN_EMERG "PANIC: %s\n", msg);
+		if (spl_panic_halt)
+			panic("%s", msg);
+
 		spl_dumpstack();
 
 		/* Halt the thread to facilitate further debugging */