Public bug reported:
5.13 with KCSAN enabled reports the following bug on Xen-based
instances.
Maybe it's worth investigating to determine if they are false positives
or not, for now, I think we can just disable CONFIG_KCSAN to prevent
this boot problem:
200 01:51:29 INFO | kernel: [ 2.887005] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
201 01:51:29 INFO | kernel: [ 3.532196] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
202 01:51:29 INFO | kernel: [ 6.159297] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
203 01:51:29 INFO | kernel: [ 10.502736] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
204 01:51:29 INFO | kernel: [ 10.615868] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
205 01:51:29 INFO | kernel: [ 12.026134] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
206 01:51:29 INFO | kernel: [ 12.543270] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
207 01:51:29 INFO | kernel: [ 13.687048] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
208 01:51:29 INFO | kernel: [ 15.529253] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
209 01:51:29 INFO | kernel: [ 16.923586] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
210 01:51:29 INFO | kernel: [ 17.501250] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
211 01:51:29 INFO | kernel: [ 17.896641] BUG:
KCSAN: data-race in mark_page_accessed / workingset_activation
212 01:51:29 INFO | kernel: [ 18.099471] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
213 01:51:29 INFO | kernel: [ 18.548714] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
214 01:51:29 INFO | kernel: [ 24.382191] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
215 01:51:29 INFO | kernel: [ 24.590778] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
216 01:51:29 INFO | kernel: [ 24.743774] BUG:
KCSAN: data-race in do_task_stat / handle_mm_fault
217 01:51:29 INFO | kernel: [ 25.029528] BUG:
KCSAN: data-race in rwsem_spin_on_owner+0xd0/0x130
218 01:51:29 INFO | kernel: [ 28.295636] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
219 01:51:29 INFO | kernel: [ 28.340049] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
220 01:51:29 INFO | kernel: [ 33.598326] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
221 01:51:29 INFO | kernel: [ 40.784905] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
222 01:51:29 INFO | kernel: [ 45.871317] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
223 01:51:29 INFO | kernel: [ 48.590241] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
224 01:51:29 INFO | kernel: [ 55.486723] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
225 01:51:29 INFO | kernel: [ 55.825362] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
226 01:51:29 INFO | kernel: [ 59.420467] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
227 01:51:29 INFO | kernel: [ 59.458117] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
228 01:51:29 INFO | kernel: [ 62.425613] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
229 01:51:29 INFO | kernel: [ 66.589118] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
230 01:51:29 INFO | kernel: [ 72.075638] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
231 01:51:29 INFO | kernel: [ 81.497534] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
232 01:51:29 INFO | kernel: [ 81.818867] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
233 01:51:29 INFO | kernel: [ 86.696389] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
234 01:51:29 INFO | kernel: [ 88.678238] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
235 01:51:29 INFO | kernel: [ 115.520669] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
236 01:51:29 INFO | kernel: [ 116.961607] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
237 01:51:29 INFO | kernel: [ 122.429372] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
238 01:51:29 INFO | kernel: [ 144.008901] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
239 01:51:29 INFO | kernel: [ 145.736327] BUG:
KCSAN: data-race in blkif_interrupt+0x90/0x9b0
240 01:51:29 INFO | kernel: [ 147.992873] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
241 01:51:29 INFO | kernel: [ 151.800358] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
242 01:51:29 INFO | kernel: [ 153.500651] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
243 01:51:29 INFO | kernel: [ 154.963711] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
244 01:51:29 INFO | kernel: [ 155.748589] BUG:
KCSAN: data-race in blkif_queue_rq+0x1f8/0x580
245 01:51:29 INFO | kernel: [ 3.079624] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
246 01:51:29 INFO | kernel: [ 3.575621] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
247 01:51:29 INFO | kernel: [ 9.829576] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
248 01:51:29 INFO | kernel: [ 10.534687] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
249 01:51:29 INFO | kernel: [ 10.643661] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
250 01:51:29 INFO | kernel: [ 11.117331] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
251 01:51:29 INFO | kernel: [ 13.818683] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
252 01:51:29 INFO | kernel: [ 16.954826] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
253 01:51:29 INFO | kernel: [ 16.994132] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
254 01:51:29 INFO | kernel: [ 17.897419] BUG:
KCSAN: data-race in xa_get_order / xas_store
255 01:51:29 INFO | kernel: [ 18.189016] BUG:
KCSAN: data-race in ep_poll / ep_poll_callback
256 01:51:29 INFO | kernel: [ 21.035488] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
257 01:51:29 INFO | kernel: [ 21.081562] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
258 01:51:29 INFO | kernel: [ 25.674475] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
259 01:51:29 INFO | kernel: [ 27.893192] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
260 01:51:29 INFO | kernel: [ 28.874380] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
261 01:51:29 INFO | kernel: [ 29.707617] BUG:
KCSAN: data-race in blkif_queue_rq+0x1f8/0x580
262 01:51:29 INFO | kernel: [ 34.429163] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
263 01:51:29 INFO | kernel: [ 34.564311] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
264 01:51:29 INFO | kernel: [ 45.132356] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
265 01:51:29 INFO | kernel: [ 48.582110] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
266 01:51:29 INFO | kernel: [ 49.076744] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
267 01:51:29 INFO | kernel: [ 62.772511] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
268 01:51:29 INFO | kernel: [ 69.192310] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
269 01:51:29 INFO | kernel: [ 70.310443] BUG:
KCSAN: data-race in squashfs_cache_get / squashfs_cache_get
270 01:51:29 INFO | kernel: [ 71.437078] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
271 01:51:29 INFO | kernel: [ 72.886439] BUG:
KCSAN: data-race in tick_nohz_next_event / tick_nohz_stop_tick
272 01:51:29 INFO | kernel: [ 75.476174] BUG:
KCSAN: data-race in blkif_queue_rq+0x1f8/0x580
273 01:51:29 INFO | kernel: [ 75.864774] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
274 01:51:29 INFO | kernel: [ 77.761293] BUG:
KCSAN: data-race in squashfs_cache_get / squashfs_cache_get
275 01:51:29 INFO | kernel: [ 80.076776] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
276 01:51:29 INFO | kernel: [ 80.588217] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
277 01:51:29 INFO | kernel: [ 88.062416] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
278 01:51:29 INFO | kernel: [ 91.122466] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
279 01:51:29 INFO | kernel: [ 99.593126] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
280 01:51:29 INFO | kernel: [ 101.440129] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
281 01:51:29 INFO | kernel: [ 105.583766] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
282 01:51:29 INFO | kernel: [ 106.264595] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
283 01:51:29 INFO | kernel: [ 106.959873] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
284 01:51:29 INFO | kernel: [ 117.372794] BUG:
KCSAN: data-race in squashfs_cache_get / squashfs_cache_get
285 01:51:29 INFO | kernel: [ 133.692720] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
286 01:51:29 INFO | kernel: [ 137.323812] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
287 01:51:29 INFO | kernel: [ 139.148314] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
288 01:51:29 INFO | kernel: [ 144.343329] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
289 01:51:29 INFO | kernel: [ 148.455258] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
290 01:51:29 INFO | kernel: [ 149.356395] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
291 01:51:29 INFO | kernel: [ 153.796760] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
292 01:51:29 INFO | kernel: [ 154.155743] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
293 01:51:29 INFO | kernel: [ 158.753571] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
294 01:51:29 INFO | kernel: [ 160.300552] BUG:
KCSAN: data-race in blkif_interrupt+0x4ad/0x9b0
295 01:51:29 INFO | kernel: [ 164.070805] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
296 01:51:29 INFO | kernel: [ 168.163168] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
297 01:51:29 INFO | kernel: [ 171.607960] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
298 01:51:29 INFO | kernel: [ 175.638946] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
299 01:51:29 INFO | kernel: [ 176.462925] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
300 01:51:29 INFO | kernel: [ 179.483930] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
301 01:51:29 INFO | kernel: [ 179.751932] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
302 01:51:29 INFO | kernel: [ 179.823239] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
303 01:51:29 INFO | kernel: [ 179.878918] BUG:
KCSAN: data-race in ixgbevf_clean_rx_irq+0x194/0x10d0 [ixgbevf]
304 01:51:29 INFO | kernel: [ 183.190552] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
305 01:51:29 INFO | kernel: [ 183.455361] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
306 01:51:29 INFO | kernel: [ 183.679097] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
307 01:51:29 INFO | kernel: [ 183.903644] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
308 01:51:29 INFO | kernel: [ 185.189153] BUG:
KCSAN: data-race in ixgbevf_clean_rx_irq+0x194/0x10d0 [ixgbevf]
309 01:51:29 INFO | kernel: [ 187.178486] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
310 01:51:29 INFO | kernel: [ 189.414852] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
311 01:51:29 INFO | kernel: [ 189.532744] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
312 01:51:29 INFO | kernel: [ 190.670737] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
313 01:51:29 INFO | kernel: [ 192.376789] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
314 01:51:29 INFO | kernel: [ 194.779451] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
315 01:51:29 INFO | kernel: [ 196.194261] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
316 01:51:29 INFO | kernel: [ 196.227875] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
317 01:51:29 INFO | kernel: [ 198.895144] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
318 01:51:29 INFO | kernel: [ 199.495661] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
319 01:51:29 INFO | kernel: [ 203.053774] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
320 01:51:29 INFO | kernel: [ 211.118856] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
321 01:51:29 INFO | kernel: [ 216.431575] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
322 01:51:29 INFO | kernel: [ 226.951356] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
323 01:51:29 INFO | kernel: [ 230.598079] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
324 01:51:29 INFO | kernel: [ 247.819915] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
325 01:51:29 INFO | kernel: [ 248.150319] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
326 01:51:29 INFO | kernel: [ 249.678609] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
327 01:51:29 INFO | kernel: [ 253.009375] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
328 01:51:29 INFO | kernel: [ 260.947016] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
329 01:51:29 INFO | kernel: [ 261.078918] BUG:
KCSAN: data-race in blkif_queue_rq+0x1f8/0x580
330 01:51:29 INFO | kernel: [ 263.558595] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
331 01:51:29 INFO | kernel: [ 265.098189] BUG:
KCSAN: data-race in tick_nohz_next_event / tick_nohz_stop_tick
332 01:51:29 INFO | kernel: [ 269.527203] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
333 01:51:29 INFO | kernel: [ 273.654006] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
334 01:51:29 INFO | kernel: [ 276.781938] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
335 01:51:29 INFO | kernel: [ 280.704404] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
336 01:51:29 INFO | kernel: [ 281.509299] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
337 01:51:29 INFO | kernel: [ 285.450252] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
338 01:51:29 INFO | kernel: [ 291.787705] BUG:
KCSAN: data-race in blkif_queue_rq+0x1f8/0x580
339 01:51:29 INFO | kernel: [ 296.096464] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
340 01:51:29 INFO | kernel: [ 302.763844] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
341 01:51:29 INFO | kernel: [ 310.960763] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
342 01:51:29 INFO | kernel: [ 314.882402] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
343 01:51:29 INFO | kernel: [ 315.784655] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
344 01:51:29 INFO | kernel: [ 323.749693] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
345 01:51:29 INFO | kernel: [ 324.044204] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
346 01:51:29 INFO | kernel: [ 327.533069] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
347 01:51:29 INFO | kernel: [ 328.593198] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
348 01:51:29 INFO | kernel: [ 332.540279] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
349 01:51:29 INFO | kernel: [ 333.852165] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
350 01:51:29 INFO | kernel: [ 336.638016] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
351 01:51:29 INFO | kernel: [ 340.753666] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
352 01:51:29 INFO | kernel: [ 357.051496] BUG:
KCSAN: data-race in squashfs_cache_get / squashfs_cache_get
353 01:51:29 INFO | kernel: [ 357.746936] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
354 01:51:29 INFO | kernel: [ 358.793446] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
355 01:51:29 INFO | kernel: [ 360.172789] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
356 01:51:29 INFO | kernel: [ 367.543171] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
357 01:51:29 INFO | kernel: [ 367.694796] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
358 01:51:29 INFO | kernel: [ 367.959566] BUG:
KCSAN: data-race in _find_next_bit+0x4a/0x130
359 01:51:29 INFO | kernel: [ 369.341928] BUG:
KCSAN: data-race in tick_nohz_stop_tick / tick_nohz_stop_tick
360 01:51:29 INFO | kernel: [ 371.652053] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
361 01:51:29 INFO | kernel: [ 382.638774] BUG:
KCSAN: data-race in rwsem_spin_on_owner+0xd0/0x130
362 01:51:29 INFO | kernel: [ 383.007580] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
363 01:51:29 INFO | kernel: [ 385.465852] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
364 01:51:29 INFO | kernel: [ 386.320851] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
365 01:51:29 INFO | kernel: [ 386.888024] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
366 01:51:29 INFO | kernel: [ 387.433893] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
367 01:51:29 INFO | kernel: [ 387.638624] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
368 01:51:29 INFO | kernel: [ 388.758963] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
369 01:51:29 INFO | kernel: [ 392.592530] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
370 01:51:29 INFO | kernel: [ 398.470752] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
371 01:51:29 INFO | kernel: [ 399.114870] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
** Affects: linux-aws (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1944028
Title:
linux-aws 5.13: KCSAN bug on Xen-based instances
Status in linux-aws package in Ubuntu:
New
Bug description:
5.13 with KCSAN enabled reports the following bug on Xen-based
instances.
Maybe it's worth investigating to determine if they are false
positives or not, for now, I think we can just disable CONFIG_KCSAN to
prevent this boot problem:
200 01:51:29 INFO | kernel: [ 2.887005] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
201 01:51:29 INFO | kernel: [ 3.532196] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
202 01:51:29 INFO | kernel: [ 6.159297] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
203 01:51:29 INFO | kernel: [ 10.502736] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
204 01:51:29 INFO | kernel: [ 10.615868] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
205 01:51:29 INFO | kernel: [ 12.026134] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
206 01:51:29 INFO | kernel: [ 12.543270] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
207 01:51:29 INFO | kernel: [ 13.687048] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
208 01:51:29 INFO | kernel: [ 15.529253] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
209 01:51:29 INFO | kernel: [ 16.923586] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
210 01:51:29 INFO | kernel: [ 17.501250] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
211 01:51:29 INFO | kernel: [ 17.896641] BUG:
KCSAN: data-race in mark_page_accessed / workingset_activation
212 01:51:29 INFO | kernel: [ 18.099471] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
213 01:51:29 INFO | kernel: [ 18.548714] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
214 01:51:29 INFO | kernel: [ 24.382191] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
215 01:51:29 INFO | kernel: [ 24.590778] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
216 01:51:29 INFO | kernel: [ 24.743774] BUG:
KCSAN: data-race in do_task_stat / handle_mm_fault
217 01:51:29 INFO | kernel: [ 25.029528] BUG:
KCSAN: data-race in rwsem_spin_on_owner+0xd0/0x130
218 01:51:29 INFO | kernel: [ 28.295636] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
219 01:51:29 INFO | kernel: [ 28.340049] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
220 01:51:29 INFO | kernel: [ 33.598326] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
221 01:51:29 INFO | kernel: [ 40.784905] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
222 01:51:29 INFO | kernel: [ 45.871317] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
223 01:51:29 INFO | kernel: [ 48.590241] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
224 01:51:29 INFO | kernel: [ 55.486723] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
225 01:51:29 INFO | kernel: [ 55.825362] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
226 01:51:29 INFO | kernel: [ 59.420467] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
227 01:51:29 INFO | kernel: [ 59.458117] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
228 01:51:29 INFO | kernel: [ 62.425613] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
229 01:51:29 INFO | kernel: [ 66.589118] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
230 01:51:29 INFO | kernel: [ 72.075638] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
231 01:51:29 INFO | kernel: [ 81.497534] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
232 01:51:29 INFO | kernel: [ 81.818867] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
233 01:51:29 INFO | kernel: [ 86.696389] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
234 01:51:29 INFO | kernel: [ 88.678238] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
235 01:51:29 INFO | kernel: [ 115.520669] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
236 01:51:29 INFO | kernel: [ 116.961607] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
237 01:51:29 INFO | kernel: [ 122.429372] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
238 01:51:29 INFO | kernel: [ 144.008901] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
239 01:51:29 INFO | kernel: [ 145.736327] BUG:
KCSAN: data-race in blkif_interrupt+0x90/0x9b0
240 01:51:29 INFO | kernel: [ 147.992873] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
241 01:51:29 INFO | kernel: [ 151.800358] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
242 01:51:29 INFO | kernel: [ 153.500651] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
243 01:51:29 INFO | kernel: [ 154.963711] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
244 01:51:29 INFO | kernel: [ 155.748589] BUG:
KCSAN: data-race in blkif_queue_rq+0x1f8/0x580
245 01:51:29 INFO | kernel: [ 3.079624] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
246 01:51:29 INFO | kernel: [ 3.575621] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
247 01:51:29 INFO | kernel: [ 9.829576] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
248 01:51:29 INFO | kernel: [ 10.534687] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
249 01:51:29 INFO | kernel: [ 10.643661] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
250 01:51:29 INFO | kernel: [ 11.117331] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
251 01:51:29 INFO | kernel: [ 13.818683] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
252 01:51:29 INFO | kernel: [ 16.954826] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
253 01:51:29 INFO | kernel: [ 16.994132] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
254 01:51:29 INFO | kernel: [ 17.897419] BUG:
KCSAN: data-race in xa_get_order / xas_store
255 01:51:29 INFO | kernel: [ 18.189016] BUG:
KCSAN: data-race in ep_poll / ep_poll_callback
256 01:51:29 INFO | kernel: [ 21.035488] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
257 01:51:29 INFO | kernel: [ 21.081562] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
258 01:51:29 INFO | kernel: [ 25.674475] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
259 01:51:29 INFO | kernel: [ 27.893192] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
260 01:51:29 INFO | kernel: [ 28.874380] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
261 01:51:29 INFO | kernel: [ 29.707617] BUG:
KCSAN: data-race in blkif_queue_rq+0x1f8/0x580
262 01:51:29 INFO | kernel: [ 34.429163] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
263 01:51:29 INFO | kernel: [ 34.564311] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
264 01:51:29 INFO | kernel: [ 45.132356] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
265 01:51:29 INFO | kernel: [ 48.582110] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
266 01:51:29 INFO | kernel: [ 49.076744] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
267 01:51:29 INFO | kernel: [ 62.772511] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
268 01:51:29 INFO | kernel: [ 69.192310] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
269 01:51:29 INFO | kernel: [ 70.310443] BUG:
KCSAN: data-race in squashfs_cache_get / squashfs_cache_get
270 01:51:29 INFO | kernel: [ 71.437078] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
271 01:51:29 INFO | kernel: [ 72.886439] BUG:
KCSAN: data-race in tick_nohz_next_event / tick_nohz_stop_tick
272 01:51:29 INFO | kernel: [ 75.476174] BUG:
KCSAN: data-race in blkif_queue_rq+0x1f8/0x580
273 01:51:29 INFO | kernel: [ 75.864774] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
274 01:51:29 INFO | kernel: [ 77.761293] BUG:
KCSAN: data-race in squashfs_cache_get / squashfs_cache_get
275 01:51:29 INFO | kernel: [ 80.076776] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
276 01:51:29 INFO | kernel: [ 80.588217] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
277 01:51:29 INFO | kernel: [ 88.062416] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
278 01:51:29 INFO | kernel: [ 91.122466] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
279 01:51:29 INFO | kernel: [ 99.593126] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
280 01:51:29 INFO | kernel: [ 101.440129] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
281 01:51:29 INFO | kernel: [ 105.583766] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
282 01:51:29 INFO | kernel: [ 106.264595] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
283 01:51:29 INFO | kernel: [ 106.959873] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
284 01:51:29 INFO | kernel: [ 117.372794] BUG:
KCSAN: data-race in squashfs_cache_get / squashfs_cache_get
285 01:51:29 INFO | kernel: [ 133.692720] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
286 01:51:29 INFO | kernel: [ 137.323812] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
287 01:51:29 INFO | kernel: [ 139.148314] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
288 01:51:29 INFO | kernel: [ 144.343329] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
289 01:51:29 INFO | kernel: [ 148.455258] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
290 01:51:29 INFO | kernel: [ 149.356395] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
291 01:51:29 INFO | kernel: [ 153.796760] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
292 01:51:29 INFO | kernel: [ 154.155743] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
293 01:51:29 INFO | kernel: [ 158.753571] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
294 01:51:29 INFO | kernel: [ 160.300552] BUG:
KCSAN: data-race in blkif_interrupt+0x4ad/0x9b0
295 01:51:29 INFO | kernel: [ 164.070805] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
296 01:51:29 INFO | kernel: [ 168.163168] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
297 01:51:29 INFO | kernel: [ 171.607960] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
298 01:51:29 INFO | kernel: [ 175.638946] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
299 01:51:29 INFO | kernel: [ 176.462925] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
300 01:51:29 INFO | kernel: [ 179.483930] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
301 01:51:29 INFO | kernel: [ 179.751932] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
302 01:51:29 INFO | kernel: [ 179.823239] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
303 01:51:29 INFO | kernel: [ 179.878918] BUG:
KCSAN: data-race in ixgbevf_clean_rx_irq+0x194/0x10d0 [ixgbevf]
304 01:51:29 INFO | kernel: [ 183.190552] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
305 01:51:29 INFO | kernel: [ 183.455361] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
306 01:51:29 INFO | kernel: [ 183.679097] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
307 01:51:29 INFO | kernel: [ 183.903644] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
308 01:51:29 INFO | kernel: [ 185.189153] BUG:
KCSAN: data-race in ixgbevf_clean_rx_irq+0x194/0x10d0 [ixgbevf]
309 01:51:29 INFO | kernel: [ 187.178486] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
310 01:51:29 INFO | kernel: [ 189.414852] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
311 01:51:29 INFO | kernel: [ 189.532744] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
312 01:51:29 INFO | kernel: [ 190.670737] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
313 01:51:29 INFO | kernel: [ 192.376789] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
314 01:51:29 INFO | kernel: [ 194.779451] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
315 01:51:29 INFO | kernel: [ 196.194261] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
316 01:51:29 INFO | kernel: [ 196.227875] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
317 01:51:29 INFO | kernel: [ 198.895144] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
318 01:51:29 INFO | kernel: [ 199.495661] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
319 01:51:29 INFO | kernel: [ 203.053774] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
320 01:51:29 INFO | kernel: [ 211.118856] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
321 01:51:29 INFO | kernel: [ 216.431575] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
322 01:51:29 INFO | kernel: [ 226.951356] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
323 01:51:29 INFO | kernel: [ 230.598079] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
324 01:51:29 INFO | kernel: [ 247.819915] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
325 01:51:29 INFO | kernel: [ 248.150319] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
326 01:51:29 INFO | kernel: [ 249.678609] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
327 01:51:29 INFO | kernel: [ 253.009375] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
328 01:51:29 INFO | kernel: [ 260.947016] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
329 01:51:29 INFO | kernel: [ 261.078918] BUG:
KCSAN: data-race in blkif_queue_rq+0x1f8/0x580
330 01:51:29 INFO | kernel: [ 263.558595] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
331 01:51:29 INFO | kernel: [ 265.098189] BUG:
KCSAN: data-race in tick_nohz_next_event / tick_nohz_stop_tick
332 01:51:29 INFO | kernel: [ 269.527203] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
333 01:51:29 INFO | kernel: [ 273.654006] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
334 01:51:29 INFO | kernel: [ 276.781938] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
335 01:51:29 INFO | kernel: [ 280.704404] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
336 01:51:29 INFO | kernel: [ 281.509299] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
337 01:51:29 INFO | kernel: [ 285.450252] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
338 01:51:29 INFO | kernel: [ 291.787705] BUG:
KCSAN: data-race in blkif_queue_rq+0x1f8/0x580
339 01:51:29 INFO | kernel: [ 296.096464] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
340 01:51:29 INFO | kernel: [ 302.763844] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
341 01:51:29 INFO | kernel: [ 310.960763] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
342 01:51:29 INFO | kernel: [ 314.882402] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
343 01:51:29 INFO | kernel: [ 315.784655] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
344 01:51:29 INFO | kernel: [ 323.749693] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
345 01:51:29 INFO | kernel: [ 324.044204] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
346 01:51:29 INFO | kernel: [ 327.533069] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
347 01:51:29 INFO | kernel: [ 328.593198] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
348 01:51:29 INFO | kernel: [ 332.540279] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
349 01:51:29 INFO | kernel: [ 333.852165] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
350 01:51:29 INFO | kernel: [ 336.638016] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
351 01:51:29 INFO | kernel: [ 340.753666] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
352 01:51:29 INFO | kernel: [ 357.051496] BUG:
KCSAN: data-race in squashfs_cache_get / squashfs_cache_get
353 01:51:29 INFO | kernel: [ 357.746936] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
354 01:51:29 INFO | kernel: [ 358.793446] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
355 01:51:29 INFO | kernel: [ 360.172789] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
356 01:51:29 INFO | kernel: [ 367.543171] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
357 01:51:29 INFO | kernel: [ 367.694796] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
358 01:51:29 INFO | kernel: [ 367.959566] BUG:
KCSAN: data-race in _find_next_bit+0x4a/0x130
359 01:51:29 INFO | kernel: [ 369.341928] BUG:
KCSAN: data-race in tick_nohz_stop_tick / tick_nohz_stop_tick
360 01:51:29 INFO | kernel: [ 371.652053] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
361 01:51:29 INFO | kernel: [ 382.638774] BUG:
KCSAN: data-race in rwsem_spin_on_owner+0xd0/0x130
362 01:51:29 INFO | kernel: [ 383.007580] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
363 01:51:29 INFO | kernel: [ 385.465852] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
364 01:51:29 INFO | kernel: [ 386.320851] BUG:
KCSAN: data-race in mutex_spin_on_owner+0x5b/0x130
365 01:51:29 INFO | kernel: [ 386.888024] BUG:
KCSAN: data-race in xen_vcpu_stolen+0x33/0x40
366 01:51:29 INFO | kernel: [ 387.433893] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
367 01:51:29 INFO | kernel: [ 387.638624] BUG:
KCSAN: data-race in __xen_evtchn_do_upcall+0x60/0x100
368 01:51:29 INFO | kernel: [ 388.758963] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
369 01:51:29 INFO | kernel: [ 392.592530] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
370 01:51:29 INFO | kernel: [ 398.470752] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x103/0x2f0
371 01:51:29 INFO | kernel: [ 399.114870] BUG:
KCSAN: data-race in evtchn_2l_handle_events+0x26a/0x2f0
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