Accensione [non proprio] casuale ventola HD (iMac 27" late 2009)

[bulvio]

Ciao a tutti

da diverso tempo mi capita una cosa a cui non ho ancora trovato soluzione.

Ho un iMac 27" late 2009, a cui anni fa ormai ho aggiunto un ssd sostituendo l'unità ottica (operazione direi piuttosto comune nei mac di quell'epoca).

Non so se dipenda da quello (ne dubito), ma più o meno una volta alla settimana, rigorosamente di notte (resta sempre acceso), partono le ventole dell'hard disk (o meglio, quelle indicate come "HDD" in tutti i programmi di controllo e gestione delle ventole), vanno al palo e ci restano finchè non spengo il mac.

A poco serve usare appunto questo software che gestiscono la velocità delle ventole. Se forzo la velocità ai valori abituali ovviamente rallentano e tornano a posto, finché non si chiude l'applicazione che le sta "forzando".

 

Essendo io un pochino smanettone sui sistemi *nix, ho cercato l'origine del problema nei log di sistema, usando un cronjob che ogni minuto mi legge la velocità della ventola incriminata (attraverso un programmino da riga di comando) e me la scrive in un log apposito. Ho scoperto che l'ultima volta è partita sabato scorso alle 2.42 circa, ma nei syslog non riesco a trovare se qualcosa è legato a tutto ciò...

 

Tra l'altro, ci impiegano un'oretta per arrivare alla massima velocità...

Sat Apr 24 02:32:00 CEST 2021 F1Ac [fpe2] 1099.75 (bytes 11 2f)
Sat Apr 24 02:33:01 CEST 2021 F1Ac [fpe2] 1100.00 (bytes 11 30)
Sat Apr 24 02:34:00 CEST 2021 F1Ac [fpe2] 1099.50 (bytes 11 2e)
Sat Apr 24 02:35:00 CEST 2021 F1Ac [fpe2] 1099.00 (bytes 11 2c)
Sat Apr 24 02:36:00 CEST 2021 F1Ac [fpe2] 1099.25 (bytes 11 2d)
Sat Apr 24 02:37:00 CEST 2021 F1Ac [fpe2] 1099.50 (bytes 11 2e)
Sat Apr 24 02:38:00 CEST 2021 F1Ac [fpe2] 1099.00 (bytes 11 2c)
Sat Apr 24 02:39:01 CEST 2021 F1Ac [fpe2] 1098.75 (bytes 11 2b)
Sat Apr 24 02:40:00 CEST 2021 F1Ac [fpe2] 1099.00 (bytes 11 2c)
Sat Apr 24 02:41:00 CEST 2021 F1Ac [fpe2] 1100.00 (bytes 11 30)
Sat Apr 24 02:42:00 CEST 2021 F1Ac [fpe2] 1573.50 (bytes 18 96)    <---- qui inizia ad accelerare
Sat Apr 24 02:43:00 CEST 2021 F1Ac [fpe2] 2565.50 (bytes 28 16)
Sat Apr 24 02:44:00 CEST 2021 F1Ac [fpe2] 2657.25 (bytes 29 85)
Sat Apr 24 02:45:01 CEST 2021 F1Ac [fpe2] 2723.50 (bytes 2a 8e)
Sat Apr 24 02:46:00 CEST 2021 F1Ac [fpe2] 2788.50 (bytes 2b 92)
Sat Apr 24 02:47:00 CEST 2021 F1Ac [fpe2] 2853.75 (bytes 2c 97)
Sat Apr 24 02:48:00 CEST 2021 F1Ac [fpe2] 2918.50 (bytes 2d 9a)
Sat Apr 24 02:49:00 CEST 2021 F1Ac [fpe2] 2983.75 (bytes 2e 9f)
Sat Apr 24 02:50:01 CEST 2021 F1Ac [fpe2] 3051.75 (bytes 2f af)
Sat Apr 24 02:51:00 CEST 2021 F1Ac [fpe2] 3116.50 (bytes 30 b2)
Sat Apr 24 02:52:00 CEST 2021 F1Ac [fpe2] 3183.25 (bytes 31 bd)
Sat Apr 24 02:53:00 CEST 2021 F1Ac [fpe2] 3249.50 (bytes 32 c6)
Sat Apr 24 02:54:00 CEST 2021 F1Ac [fpe2] 3315.00 (bytes 33 cc)
Sat Apr 24 02:55:00 CEST 2021 F1Ac [fpe2] 3383.25 (bytes 34 dd)
Sat Apr 24 02:56:01 CEST 2021 F1Ac [fpe2] 3447.75 (bytes 35 df)
Sat Apr 24 02:57:00 CEST 2021 F1Ac [fpe2] 3512.50 (bytes 36 e2)
Sat Apr 24 02:58:00 CEST 2021 F1Ac [fpe2] 3579.50 (bytes 37 ee)
Sat Apr 24 02:59:00 CEST 2021 F1Ac [fpe2] 3645.00 (bytes 38 f4)
Sat Apr 24 03:00:00 CEST 2021 F1Ac [fpe2] 3705.50 (bytes 39 e6)
Sat Apr 24 03:01:00 CEST 2021 F1Ac [fpe2] 3775.50 (bytes 3a fe)
Sat Apr 24 03:02:01 CEST 2021 F1Ac [fpe2] 3843.75 (bytes 3c 0f)
Sat Apr 24 03:03:00 CEST 2021 F1Ac [fpe2] 3907.75 (bytes 3d 0f)
Sat Apr 24 03:04:00 CEST 2021 F1Ac [fpe2] 3975.75 (bytes 3e 1f)
Sat Apr 24 03:05:00 CEST 2021 F1Ac [fpe2] 4042.50 (bytes 3f 2a)
Sat Apr 24 03:06:00 CEST 2021 F1Ac [fpe2] 4108.00 (bytes 40 30)
Sat Apr 24 03:07:00 CEST 2021 F1Ac [fpe2] 4175.75 (bytes 41 3f)
Sat Apr 24 03:08:01 CEST 2021 F1Ac [fpe2] 4240.00 (bytes 42 40)
Sat Apr 24 03:09:00 CEST 2021 F1Ac [fpe2] 4308.25 (bytes 43 51)
Sat Apr 24 03:10:00 CEST 2021 F1Ac [fpe2] 4372.50 (bytes 44 52)
Sat Apr 24 03:11:00 CEST 2021 F1Ac [fpe2] 4441.00 (bytes 45 64)
Sat Apr 24 03:12:00 CEST 2021 F1Ac [fpe2] 4505.00 (bytes 46 64)
Sat Apr 24 03:13:01 CEST 2021 F1Ac [fpe2] 4573.00 (bytes 47 74)
Sat Apr 24 03:14:00 CEST 2021 F1Ac [fpe2] 4638.75 (bytes 48 7b)
Sat Apr 24 03:15:00 CEST 2021 F1Ac [fpe2] 4703.75 (bytes 49 7f)
Sat Apr 24 03:16:00 CEST 2021 F1Ac [fpe2] 4768.50 (bytes 4a 82)
Sat Apr 24 03:17:00 CEST 2021 F1Ac [fpe2] 4837.25 (bytes 4b 95)
Sat Apr 24 03:18:00 CEST 2021 F1Ac [fpe2] 4903.00 (bytes 4c 9c)
Sat Apr 24 03:19:01 CEST 2021 F1Ac [fpe2] 4968.00 (bytes 4d a0)
Sat Apr 24 03:20:00 CEST 2021 F1Ac [fpe2] 5029.50 (bytes 4e 96)
Sat Apr 24 03:21:00 CEST 2021 F1Ac [fpe2] 5095.00 (bytes 4f 9c)
Sat Apr 24 03:22:00 CEST 2021 F1Ac [fpe2] 5159.50 (bytes 50 9e)
Sat Apr 24 03:23:00 CEST 2021 F1Ac [fpe2] 5219.75 (bytes 51 8f)
Sat Apr 24 03:24:00 CEST 2021 F1Ac [fpe2] 5281.50 (bytes 52 86)
Sat Apr 24 03:25:01 CEST 2021 F1Ac [fpe2] 5344.75 (bytes 53 83)
Sat Apr 24 03:26:00 CEST 2021 F1Ac [fpe2] 5397.00 (bytes 54 54)   <--- qui è arrivata al massimo
Sat Apr 24 03:27:00 CEST 2021 F1Ac [fpe2] 5422.00 (bytes 54 b8)
Sat Apr 24 03:28:00 CEST 2021 F1Ac [fpe2] 5425.25 (bytes 54 c5)
Sat Apr 24 03:29:00 CEST 2021 F1Ac [fpe2] 5425.25 (bytes 54 c5)
Sat Apr 24 03:30:00 CEST 2021 F1Ac [fpe2] 5425.25 (bytes 54 c5)
Sat Apr 24 03:31:01 CEST 2021 F1Ac [fpe2] 5428.25 (bytes 54 d1)
Sat Apr 24 03:32:00 CEST 2021 F1Ac [fpe2] 5425.25 (bytes 54 c5)
Sat Apr 24 03:33:00 CEST 2021 F1Ac [fpe2] 5425.25 (bytes 54 c5)
Sat Apr 24 03:34:00 CEST 2021 F1Ac [fpe2] 5428.25 (bytes 54 d1)

 

Il syslog di quei momenti non evidenzia niente di strano

Apr 24 02:30:43 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.02000000-0000-0000-0000-000000000000[56670]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:30:43 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.03000000-0000-0000-0000-000000000000[56676]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:31:41 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.03000000-0000-0000-0000-000000000000[56681]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:32:41 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.03000000-0000-0000-0000-000000000000[56682]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:34:01 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.03000000-0000-0000-0000-000000000000[56695]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:34:43 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.03000000-0000-0000-0000-000000000000[56700]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:35:39 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.03000000-0000-0000-0000-000000000000[56701]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:35:39 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.02000000-0000-0000-0000-000000000000[56706]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:36:16 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.03000000-0000-0000-0000-000000000000[56707]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:36:16 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.02000000-0000-0000-0000-000000000000[56708]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:36:42 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.04000000-0000-0000-0000-000000000000[56709]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:37:37 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.02000000-0000-0000-0000-000000000000[56715]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:37:41 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.04000000-0000-0000-0000-000000000000[56714]): Service exited due to signal: Killed: 9 sent by mds[84]
****> Apr 24 02:39:02 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.04000000-0000-0000-0000-000000000000[56729]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:39:44 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.04000000-0000-0000-0000-000000000000[56734]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:39:49 imac systemstats[71]: assertion failed: 17G14042: systemstats + 447564 [0E3BB256-E154-3D1D-ABD3-1FE1C5E68145]: 0x0
Apr 24 02:39:49 imac syslogd[60]: ASL Sender Statistics
Apr 24 02:40:45 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.04000000-0000-0000-0000-000000000000[56740]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:40:45 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.03000000-0000-0000-0000-000000000000[56741]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:41:42 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.03000000-0000-0000-0000-000000000000[56750]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:41:53 imac com.apple.xpc.launchd[1] (com.apple.TMHelperAgent.SetupOffer): Service only ran for 0 seconds. Pushing respawn out by 10 seconds.
Apr 24 02:41:58 imac com.apple.xpc.launchd[1] (com.apple.imfoundation.IMRemoteURLConnectionAgent): Unknown key for integer: _DirtyJetsamMemoryLimit
Apr 24 02:42:33 imac kcm[56767]: DEPRECATED USE in libdispatch client: Setting timer interval to 0 requests a 1ns timer, did you mean FOREVER (a one-shot timer)?
Apr 24 02:42:33 imac com.apple.xpc.launchd[1] (com.apple.quicklook[56764]): Endpoint has been activated through legacy launch(3) APIs. Please switch to XPC or bootstrap_check_in(): com.apple.quicklook
Apr 24 02:42:35 imac com.apple.xpc.launchd[1] (com.apple.quicklook[56779]): Endpoint has been activated through legacy launch(3) APIs. Please switch to XPC or bootstrap_check_in(): com.apple.quicklook
Apr 24 02:44:02 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.01000000-0000-0000-0000-000000000000[56785]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:44:44 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.01000000-0000-0000-0000-000000000000[56790]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:46:00 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.03000000-0000-0000-0000-000000000000[56796]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:46:00 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.02000000-0000-0000-0000-000000000000[56798]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:46:00 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.01000000-0000-0000-0000-000000000000[56791]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:46:00 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.04000000-0000-0000-0000-000000000000[56797]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:46:42 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.04000000-0000-0000-0000-000000000000[56803]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:47:02 imac com.apple.xpc.launchd[1] (com.apple.imfoundation.IMRemoteURLConnectionAgent): Unknown key for integer: _DirtyJetsamMemoryLimit
Apr 24 02:47:38 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.04000000-0000-0000-0000-000000000000[56805]): Service exited due to signal: Killed: 9 sent by mds[84]
Apr 24 02:47:45 imac com.apple.xpc.launchd[1] (com.apple.mdworker.shared.04000000-0000-0000-0000-000000000000[56804]): Service exited due to signal: Killed: 9 sent by mds[84]
A

Ci sono diversi errori ma li si ritrova tutti anche in altri momenti, anche quelli intorno alle 02:39, in realtà compaiono anche prima e dopo...

 

Qualche idea?

 

Grazie!