1/*
2 * Copyright (c) 2000-2020 Apple Inc. All rights reserved.
3 *
4 * @Apple_LICENSE_HEADER_START@
5 *
6 * The contents of this file constitute Original Code as defined in and
7 * are subject to the Apple Public Source License Version 1.1 (the
8 * "License"). You may not use this file except in compliance with the
9 * License. Please obtain a copy of the License at
10 * http://www.apple.com/publicsource and read it before using this file.
11 *
12 * This Original Code and all software distributed under the License are
13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17 * License for the specific language governing rights and limitations
18 * under the License.
19 *
20 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
21 */
22
23#include <sys/kdebug_common.h>
24#include <sys/kdebug_triage.h>
25
26#define TRIAGE_KDCOPYBUF_COUNT 128
27#define TRIAGE_KDCOPYBUF_SIZE (TRIAGE_KDCOPYBUF_COUNT * sizeof(kd_buf))
28
29struct kd_control kd_control_triage = {
30 .kds_free_list = { .raw = KDS_PTR_NULL },
31 .mode = KDEBUG_MODE_TRIAGE,
32 .kdebug_events_per_storage_unit = TRIAGE_EVENTS_PER_STORAGE_UNIT,
33 .kdebug_min_storage_units_per_cpu = TRIAGE_MIN_STORAGE_UNITS_PER_CPU,
34 .kdebug_kdcopybuf_count = TRIAGE_KDCOPYBUF_COUNT,
35 .kdebug_kdcopybuf_size = TRIAGE_KDCOPYBUF_SIZE,
36 .kdc_flags = KDBG_DEBUGID_64,
37 .kdc_emit = KDEMIT_DISABLE,
38 .kdc_oldest_time = 0
39};
40
41struct kd_buffer kd_buffer_triage = {
42 .kdb_event_count = 0,
43 .kdb_storage_count = 0,
44 .kdb_storage_threshold = 0,
45 .kdb_region_count = 0,
46 .kdb_info = NULL,
47 .kd_bufs = NULL,
48 .kdcopybuf = NULL
49};
50
51
52static LCK_GRP_DECLARE(ktriage_grp, "ktriage");
53static LCK_MTX_DECLARE(ktriage_mtx, &ktriage_grp);
54
55static void
56ktriage_lock(void)
57{
58 lck_mtx_lock(lck: &ktriage_mtx);
59}
60
61static void
62ktriage_unlock(void)
63{
64 lck_mtx_unlock(lck: &ktriage_mtx);
65}
66
67int
68create_buffers_triage(void)
69{
70 int error = 0;
71 int events_per_storage_unit, min_storage_units_per_cpu;
72
73 if (kd_control_triage.kdc_flags & KDBG_BUFINIT) {
74 panic("create_buffers_triage shouldn't be called once we have inited the triage system.");
75 }
76
77 events_per_storage_unit = kd_control_triage.kdebug_events_per_storage_unit;
78 min_storage_units_per_cpu = kd_control_triage.kdebug_min_storage_units_per_cpu;
79
80 kd_control_triage.kdebug_cpus = kdbg_cpu_count();
81 kd_control_triage.alloc_cpus = kd_control_triage.kdebug_cpus;
82 kd_control_triage.kdc_coprocs = NULL;
83
84 if (kd_buffer_triage.kdb_event_count < (kd_control_triage.kdebug_cpus * events_per_storage_unit * min_storage_units_per_cpu)) {
85 kd_buffer_triage.kdb_storage_count = kd_control_triage.kdebug_cpus * min_storage_units_per_cpu;
86 } else {
87 kd_buffer_triage.kdb_storage_count = kd_buffer_triage.kdb_event_count / events_per_storage_unit;
88 }
89
90 kd_buffer_triage.kdb_event_count = kd_buffer_triage.kdb_storage_count * events_per_storage_unit;
91
92 kd_buffer_triage.kd_bufs = NULL;
93
94 error = create_buffers(ctl: &kd_control_triage, buf: &kd_buffer_triage, VM_KERN_MEMORY_TRIAGE);
95
96 if (!error) {
97 kd_control_triage.kdc_oldest_time = mach_continuous_time();
98 kd_control_triage.enabled = 1;
99 kd_buffer_triage.kdb_storage_threshold = kd_buffer_triage.kdb_storage_count / 2;
100 }
101
102 return error;
103}
104
105__attribute__((noreturn))
106void
107delete_buffers_triage(void)
108{
109 /*
110 * If create_buffers() for triage mode fails, it will call the generic delete_buffers() to
111 * free the resources. This specific call should never be invoked because we expect the
112 * triage system to always be ON.
113 */
114 panic("delete_buffers_triage shouldn't be invoked");
115}
116
117ktriage_strings_t ktriage_subsystems_strings[KDBG_TRIAGE_SUBSYS_MAX + 1];
118
119static void
120ktriage_convert_to_string(uint64_t debugid, uintptr_t arg, char *buf, uint32_t bufsz)
121{
122 if (buf == NULL) {
123 return;
124 }
125
126 uint8_t subsystem = KDBG_TRIAGE_EXTRACT_CLASS(debugid);
127
128 /* zero subsystem means there is nothing to log */
129 if (subsystem == 0) {
130 return;
131 }
132
133 if (subsystem > KDBG_TRIAGE_SUBSYS_MAX) {
134 snprintf(buf, count: bufsz, "KTriage Error: Subsystem code %u is invalid\n", subsystem);
135 return;
136 }
137
138 int subsystem_num_strings = ktriage_subsystems_strings[subsystem].num_strings;
139 const char **subsystem_strings = ktriage_subsystems_strings[subsystem].strings;
140 uint16_t strindx = KDBG_TRIAGE_EXTRACT_CODE(debugid);
141
142 /* fallback if ktriage doesn't know how to parse the given debugid */
143 if (subsystem_num_strings < 1 || subsystem_strings == NULL || strindx >= subsystem_num_strings) {
144 snprintf(buf, count: bufsz, "KTriage: Subsystem %d reported %u with argument 0x%lx\n", subsystem, strindx, arg);
145 return;
146 }
147
148 snprintf(buf, count: bufsz, "%s(arg = 0x%lx) %s", subsystem_strings[0], arg, subsystem_strings[strindx]);
149
150 return;
151}
152
153void
154ktriage_record(
155 uint64_t thread_id,
156 uint64_t debugid,
157 uintptr_t arg)
158{
159 struct kd_record kd_rec;
160
161 if (thread_id == 0) {
162 thread_id = thread_tid(thread: current_thread());
163 }
164
165 kd_rec.cpu = -1;
166 kd_rec.timestamp = -1;
167
168 /*
169 * use 64-bit debugid per our flag KDBG_DEBUGID_64
170 * that is set in kd_control_triage (on LP64 only).
171 */
172 assert(kd_control_triage.kdc_flags & KDBG_DEBUGID_64);
173
174 kd_rec.debugid = 0;
175 kd_rec.arg4 = (uintptr_t)debugid;
176
177 kd_rec.arg1 = arg;
178 kd_rec.arg2 = 0;
179 kd_rec.arg3 = 0;
180 kd_rec.arg5 = (uintptr_t)thread_id;
181
182 kernel_debug_write(ctl: &kd_control_triage,
183 buf: &kd_buffer_triage,
184 kd_rec);
185}
186
187void
188ktriage_extract(
189 uint64_t thread_id,
190 void *buf,
191 uint32_t bufsz)
192{
193 size_t i, record_bytes, record_cnt, record_bufsz;
194 void *record_buf;
195 void *local_buf;
196 int ret;
197
198
199 if (thread_id == 0 || buf == NULL || bufsz < KDBG_TRIAGE_MAX_STRLEN) {
200 return;
201 }
202
203 local_buf = buf;
204 bzero(s: local_buf, n: bufsz);
205
206 record_bytes = record_bufsz = kd_buffer_triage.kdb_event_count * sizeof(kd_buf);
207 record_buf = kalloc_data(record_bufsz, Z_WAITOK);
208
209 if (record_buf == NULL) {
210 ret = ENOMEM;
211 } else {
212 ktriage_lock();
213 ret = kernel_debug_read(ctl: &kd_control_triage,
214 buf: &kd_buffer_triage,
215 buffer: (user_addr_t) record_buf, number: &record_bytes, NULL, NULL, file_version: 0);
216 ktriage_unlock();
217 }
218
219 if (ret) {
220 printf("ktriage_extract: kernel_debug_read failed with %d\n", ret);
221 kfree_data(record_buf, record_bufsz);
222 return;
223 }
224
225 kd_buf *kd = (kd_buf*) record_buf;
226 i = 0;
227 record_cnt = record_bytes; /* kernel_debug_read() takes number of bytes that it
228 * converts to kd_bufs. It processes a max of those and
229 * returns number of kd_buf read/processed. We use a
230 * different variable here to make our units clear.
231 */
232
233 while (i < record_cnt) {
234 if (kd->arg5 == (uintptr_t)thread_id) {
235 ktriage_convert_to_string(debugid: kd->arg4, arg: kd->arg1, buf: local_buf, KDBG_TRIAGE_MAX_STRLEN);
236 local_buf = (void *)((uintptr_t)local_buf + KDBG_TRIAGE_MAX_STRLEN);
237 bufsz -= KDBG_TRIAGE_MAX_STRLEN;
238 if (bufsz < KDBG_TRIAGE_MAX_STRLEN) {
239 break;
240 }
241 }
242 i++;
243 kd++;
244 }
245
246 kfree_data(record_buf, record_bufsz);
247}
248
249int
250ktriage_register_subsystem_strings(uint8_t subsystem, ktriage_strings_t *subsystem_strings)
251{
252 if (subsystem == 0 || subsystem > KDBG_TRIAGE_SUBSYS_MAX || subsystem_strings == NULL) {
253 return EINVAL;
254 }
255
256 ktriage_lock();
257
258 ktriage_subsystems_strings[subsystem].num_strings = subsystem_strings->num_strings;
259 ktriage_subsystems_strings[subsystem].strings = subsystem_strings->strings;
260 printf("ktriage_register_subsystem_strings: set subsystem %u strings\n", subsystem);
261
262 ktriage_unlock();
263
264 return 0;
265}
266
267int
268ktriage_unregister_subsystem_strings(uint8_t subsystem)
269{
270 if (subsystem == 0 || subsystem > KDBG_TRIAGE_SUBSYS_MAX) {
271 return EINVAL;
272 }
273
274 ktriage_lock();
275
276 if (ktriage_subsystems_strings[subsystem].num_strings == -1) {
277 // already unregistered - nothing to do
278 ktriage_unlock();
279 return 0;
280 }
281
282 ktriage_subsystems_strings[subsystem].num_strings = -1;
283 ktriage_subsystems_strings[subsystem].strings = NULL;
284
285 ktriage_unlock();
286
287 return 0;
288}
289
290/* KDBG_TRIAGE_CODE_* section */
291/* VM begin */
292
293const char *vm_triage_strings[] =
294{
295 [KDBG_TRIAGE_VM_PREFIX] = "VM - ",
296 [KDBG_TRIAGE_VM_NO_DATA] = "Didn't get back data for this file\n",
297 [KDBG_TRIAGE_VM_TEXT_CORRUPTION] = "A memory corruption was found in executable text\n",
298 [KDBG_TRIAGE_VM_ADDRESS_NOT_FOUND] = "Found no valid range containing this address\n",
299 [KDBG_TRIAGE_VM_PROTECTION_FAILURE] = "Fault hit protection failure\n",
300 [KDBG_TRIAGE_VM_FAULT_MEMORY_SHORTAGE] = "VM Fault hit memory shortage\n",
301 [KDBG_TRIAGE_VM_FAULT_COPY_MEMORY_SHORTAGE] = "vm_fault_copy hit memory shortage\n",
302 [KDBG_TRIAGE_VM_FAULT_OBJCOPYSLOWLY_MEMORY_SHORTAGE] = "vm_object_copy_slowly fault hit memory shortage\n",
303 [KDBG_TRIAGE_VM_FAULT_OBJIOPLREQ_MEMORY_SHORTAGE] = "vm_object_iopl_request fault hit memory shortage\n",
304 [KDBG_TRIAGE_VM_FAULT_INTERRUPTED] = "Fault was interrupted\n",
305 [KDBG_TRIAGE_VM_SUCCESS_NO_PAGE] = "Returned success with no page\n",
306 [KDBG_TRIAGE_VM_GUARDPAGE_FAULT] = "Guard page fault\n",
307 [KDBG_TRIAGE_VM_NONZERO_PREEMPTION_LEVEL] = "Fault entered with non-zero preemption level\n",
308 [KDBG_TRIAGE_VM_BUSYPAGE_WAIT_INTERRUPTED] = "Waiting on busy page was interrupted\n",
309 [KDBG_TRIAGE_VM_PURGEABLE_FAULT_ERROR] = "Purgeable object hit an error in fault\n",
310 [KDBG_TRIAGE_VM_OBJECT_SHADOW_SEVERED] = "Object has a shadow severed\n",
311 [KDBG_TRIAGE_VM_OBJECT_NOT_ALIVE] = "Object is not alive\n",
312 [KDBG_TRIAGE_VM_OBJECT_NO_PAGER] = "Object has no pager\n",
313 [KDBG_TRIAGE_VM_OBJECT_NO_PAGER_FORCED_UNMOUNT] = "Object has no pager because the backing vnode was force unmounted\n",
314 [KDBG_TRIAGE_VM_OBJECT_NO_PAGER_UNGRAFT] = "Object has no pager because the backing vnode was ungrafted\n",
315 [KDBG_TRIAGE_VM_PAGE_HAS_ERROR] = "Page has error bit set\n",
316 [KDBG_TRIAGE_VM_PAGE_HAS_RESTART] = "Page has restart bit set\n",
317 [KDBG_TRIAGE_VM_FAILED_IMMUTABLE_PAGE_WRITE] = "Failed a writable mapping of an immutable page\n",
318 [KDBG_TRIAGE_VM_FAILED_NX_PAGE_EXEC_MAPPING] = "Failed an executable mapping of a nx page\n",
319 [KDBG_TRIAGE_VM_PMAP_ENTER_RESOURCE_SHORTAGE] = "pmap_enter retried due to resource shortage\n",
320 [KDBG_TRIAGE_VM_COMPRESSOR_GET_OUT_OF_RANGE] = "Compressor offset requested out of range\n",
321 [KDBG_TRIAGE_VM_COMPRESSOR_GET_NO_PAGE] = "Compressor doesn't have this page\n",
322 [KDBG_TRIAGE_VM_COMPRESSOR_DECOMPRESS_FAILED] = "Decompressor hit a failure\n",
323 [KDBG_TRIAGE_VM_SUBMAP_NO_COW_ON_EXECUTABLE] = "Submap disallowed cow on executable range\n",
324 [KDBG_TRIAGE_VM_SUBMAP_COPY_SLOWLY_FAILED] = "Submap object copy_slowly failed\n",
325 [KDBG_TRIAGE_VM_SUBMAP_COPY_STRAT_FAILED] = "Submap object copy_strategically failed\n",
326 [KDBG_TRIAGE_VM_VNODEPAGER_CLREAD_NO_UPL] = "vnode_pager_cluster_read couldn't create a UPL\n",
327 [KDBG_TRIAGE_VM_VNODEPAGEIN_NO_UBCINFO] = "vnode_pagein got a vnode with no ubcinfo\n",
328 [KDBG_TRIAGE_VM_VNODEPAGEIN_FSPAGEIN_FAIL] = "Filesystem pagein returned an error in vnode_pagein\n",
329 [KDBG_TRIAGE_VM_VNODEPAGEIN_NO_UPL] = "vnode_pagein couldn't create a UPL\n",
330 [KDBG_TRIAGE_VM_ECC_DIRTY] = "Accessed a page that has uncorrected ECC error\n",
331 [KDBG_TRIAGE_VM_ECC_CLEAN] = "Clean page had an uncorrected ECC error\n",
332 [KDBG_TRIAGE_VM_COPYOUTMAP_SAMEMAP_ERROR] = "vm_copyout_map failed with same src-dest map\n",
333 [KDBG_TRIAGE_VM_COPYOUTMAP_DIFFERENTMAP_ERROR] = "vm_copyout_map failed with different src-dest map\n",
334 [KDBG_TRIAGE_VM_COPYOVERWRITE_FULL_NESTED_ERROR] = "vm_map_copy_overwrite_nested failed when trying full copy\n",
335 [KDBG_TRIAGE_VM_COPYOVERWRITE_PARTIAL_NESTED_ERROR] = "vm_map_copy_overwrite_nested failed when trying partial copy\n",
336 [KDBG_TRIAGE_VM_COPYOVERWRITE_PARTIAL_HEAD_NESTED_ERROR] = "vm_map_copy_overwrite_nested failed when trying misaligned head copy\n",
337 [KDBG_TRIAGE_VM_COPYOVERWRITE_PARTIAL_TAIL_NESTED_ERROR] = "vm_map_copy_overwrite_nested failed when trying misaligned tail copy\n",
338 [KDBG_TRIAGE_VM_COPYOUT_INTERNAL_SIZE_ERROR] = "vm_map_copyout_internal failed due to bad size\n",
339 [KDBG_TRIAGE_VM_COPYOUT_KERNEL_BUFFER_ERROR] = "vm_map_copyout_kernel_buffer failed\n",
340 [KDBG_TRIAGE_VM_COPYOUT_INTERNAL_ADJUSTING_ERROR] = "vm_map_copyout_internal failed when trying to adjust src-dest params\n",
341 [KDBG_TRIAGE_VM_COPYOUT_INTERNAL_SPACE_ERROR] = "vm_map_copyout_internal failed because we couldn't locate space\n",
342 [KDBG_TRIAGE_VM_ALLOCATE_KERNEL_BADFLAGS_ERROR] = "mach_vm_allocate_kernel failed due to bad flags\n",
343 [KDBG_TRIAGE_VM_ALLOCATE_KERNEL_BADMAP_ERROR] = "mach_vm_allocate_kernel failed due to bad map\n",
344 [KDBG_TRIAGE_VM_ALLOCATE_KERNEL_BADSIZE_ERROR] = "mach_vm_allocate_kernel failed due to bad size\n",
345 [KDBG_TRIAGE_VM_ALLOCATE_KERNEL_VMMAPENTER_ERROR] = "mach_vm_allocate_kernel failed within call to vm_map_enter\n",
346};
347/* VM end */
348
349/* Cluster begin */
350
351const char *cluster_triage_strings[] =
352{
353 [KDBG_TRIAGE_CL_PREFIX] = "CL - ",
354 [KDBG_TRIAGE_CL_PGIN_PAST_EOF] = "cluster_pagein past EOF\n",
355};
356/* Cluster end */
357
358/* Shared Region begin */
359
360const char *shared_region_triage_strings[] =
361{
362 [KDBG_TRIAGE_SHARED_REGION_PREFIX] = "SR - ",
363 [KDBG_TRIAGE_SHARED_REGION_NO_UPL] = "shared_region_pager_data_request couldn't create a upl\n",
364 [KDBG_TRIAGE_SHARED_REGION_SLIDE_ERROR] = "shared_region_pager_data_request hit a page sliding error\n",
365 [KDBG_TRIAGE_SHARED_REGION_PAGER_MEMORY_SHORTAGE] = "shared_region_pager_data_request hit memory shortage\n",
366};
367/* Shared Region end */
368
369/* Dyld Pager begin */
370
371const char *dyld_pager_triage_strings[] =
372{
373 [KDBG_TRIAGE_DYLD_PAGER_PREFIX] = "DP - ",
374 [KDBG_TRIAGE_DYLD_PAGER_NO_UPL] = "dyld_pager_data_request couldn't create a upl\n",
375 [KDBG_TRIAGE_DYLD_PAGER_MEMORY_SHORTAGE] = "dyld_pager_data_request hit memory shortage\n",
376 [KDBG_TRIAGE_DYLD_PAGER_SLIDE_ERROR] = "dyld_pager_data_request hit a page sliding error\n",
377 [KDBG_TRIAGE_DYLD_PAGER_CHAIN_OUT_OF_RANGE] = "dyld_pager_data_request chain out of range\n",
378 [KDBG_TRIAGE_DYLD_PAGER_SEG_INFO_OUT_OF_RANGE] = "dyld_pager_data_request seg_info out of range\n",
379 [KDBG_TRIAGE_DYLD_PAGER_SEG_SIZE_OUT_OF_RANGE] = "dyld_pager_data_request seg->size out of range\n",
380 [KDBG_TRIAGE_DYLD_PAGER_SEG_PAGE_CNT_OUT_OF_RANGE] = "dyld_pager_data_request seg->page_count out of range\n",
381 [KDBG_TRIAGE_DYLD_PAGER_NO_SEG_FOR_VA] = "dyld_pager_data_request no segment for VA\n",
382 [KDBG_TRIAGE_DYLD_PAGER_RANGE_NOT_FOUND] = "dyld_pager_data_request no range for offset\n",
383 [KDBG_TRIAGE_DYLD_PAGER_DELTA_TOO_LARGE] = "dyld_pager_data_request delta * 4 > PAGE_SIZE\n",
384 [KDBG_TRIAGE_DYLD_PAGER_PAGE_START_OUT_OF_RANGE] = "dyld_pager_data_request segInfo page_start out of range\n",
385 [KDBG_TRIAGE_DYLD_PAGER_BAD_POINTER_FMT] = "dyld_pager_data_request unkown pointer format\n",
386 [KDBG_TRIAGE_DYLD_PAGER_INVALID_AUTH_KEY] = "dyld_pager_data_request unkown auth key\n",
387 [KDBG_TRIAGE_DYLD_PAGER_BIND_ORDINAL] = "dyld_pager_data_request invalid bind ordinal\n",
388};
389/* Dyld Pager end */
390
391/* Apple Protect Pager begin */
392
393const char *apple_protect_pager_triage_strings[] =
394{
395 [KDBG_TRIAGE_APPLE_PROTECT_PAGER_PREFIX] = "APP - ",
396 [KDBG_TRIAGE_APPLE_PROTECT_PAGER_MEMORY_SHORTAGE] = "apple_protect_pager_data_request hit memory shortage\n",
397};
398/* Apple Protect Pager end */
399
400/* Fourk Pager begin */
401
402const char *fourk_pager_triage_strings[] =
403{
404 [KDBG_TRIAGE_FOURK_PAGER_PREFIX] = "FP - ",
405 [KDBG_TRIAGE_FOURK_PAGER_MEMORY_SHORTAGE] = "fourk_pager_data_request hit memory shortage\n",
406};
407/* Fourk Pager end */
408
409/* Corpse section begin */
410
411const char *corpse_triage_strings[] =
412{
413 [KDBG_TRIAGE_CORPSE_PREFIX] = "Corpse - ",
414 [KDBG_TRIAGE_CORPSE_PROC_TOO_BIG] = "Process too big for corpse. Corpse disallowed.\n",
415 [KDBG_TRIAGE_CORPSE_FAIL_LIBGMALLOC] = "Process linked against libgmalloc. Corpse disallowed.\n",
416 [KDBG_TRIAGE_CORPSE_BLOCKED_JETSAM] = "Jetsams happening in higher bands. Corpse disallowed.\n",
417 [KDBG_TRIAGE_CORPSE_LIMIT] = "Too many corpses in flight. Corpse disallowed.\n",
418 [KDBG_TRIAGE_CORPSES_DISABLED] = "Corpse disabled on system.\n",
419 [KDBG_TRIAGE_CORPSE_DISABLED_FOR_PROC] = "Corpse disabled for this process.\n",
420};
421/* Corpse section end */
422
423/* subsystems starts at index 1 */
424ktriage_strings_t ktriage_subsystems_strings[KDBG_TRIAGE_SUBSYS_MAX + 1] = {
425 [KDBG_TRIAGE_SUBSYS_VM] = {VM_MAX_TRIAGE_STRINGS, vm_triage_strings},
426 [KDBG_TRIAGE_SUBSYS_CLUSTER] = {CLUSTER_MAX_TRIAGE_STRINGS, cluster_triage_strings},
427 [KDBG_TRIAGE_SUBSYS_SHARED_REGION] = {SHARED_REGION_MAX_TRIAGE_STRINGS, shared_region_triage_strings},
428 [KDBG_TRIAGE_SUBSYS_DYLD_PAGER] = {DYLD_PAGER_MAX_TRIAGE_STRINGS, dyld_pager_triage_strings},
429 [KDBG_TRIAGE_SUBSYS_APPLE_PROTECT_PAGER] = {APPLE_PROTECT_PAGER_MAX_TRIAGE_STRINGS, apple_protect_pager_triage_strings},
430 [KDBG_TRIAGE_SUBSYS_FOURK_PAGER] = {FOURK_PAGER_MAX_TRIAGE_STRINGS, fourk_pager_triage_strings},
431
432 [KDBG_TRIAGE_SUBSYS_APFS] = {-1, NULL},
433 [KDBG_TRIAGE_SUBSYS_DECMPFS] = {-1, NULL},
434 [KDBG_TRIAGE_SUBSYS_CORPSE] = {CORPSE_MAX_TRIAGE_STRINGS, corpse_triage_strings},
435};
436
437/* KDBG_TRIAGE_CODE_* section */
438