From: Johann Klammer <klammerj@a1.net>
To: linux-usb@vger.kernel.org
Subject: Re: possible regression in usb-storage?
Date: Thu, 24 Sep 2026 07:00:25 +0200 [thread overview]
Message-ID: <3df6f96f-1553-6842-0e11-9c08254b8da7@a1.net> (raw)
In-Reply-To: <ef6be2fd-29f7-4577-a229-35058bb9191e@rowland.harvard.edu>
On 9/24/26 4:08 AM, Alan Stern wrote:
>
>>> c6f9c300 1171417312 S Bo:1:007:2 -115 31 = 55534243 03000000 00000000 00000600 00000000 00000000 00000000 000000
>>> c6f9c300 1171417339 C Bo:1:007:2 0 31 >
>>> c6f9c300 1171417347 S Bi:1:007:1 -115 13 <
>>> c6f9c300 1174819198 C Bi:1:007:1 -108 0
>
> And that is a perfectly ordinary TEST UNIT READY command. But instead
> of responding normally, the drive seems to have disconnected itself from
> the bus after about 3.4 seconds for no apparent reason (the -108 is an
> ESHUTDOWN error code).
>
> Alan Stern
>
that may have been me unplugging it.
here's a longer trace. I waited for the threads to crash.
> c1aaeb00 1632504006 S Ci:1:005:0 s 80 06 0100 0000 0012 18 <
> c1aaeb00 1632504231 C Ci:1:005:0 0 18 = 12011002 00000040 c20b3920 01190102 0301
> c1aaeb00 1632504237 S Ci:1:005:0 s 80 06 0f00 0000 0005 5 <
> c1aaeb00 1632504481 C Ci:1:005:0 0 5 = 050f1600 02
> c1aaeb00 1632504511 S Ci:1:005:0 s 80 06 0f00 0000 0016 22 <
> c1aaeb00 1632504730 C Ci:1:005:0 0 22 = 050f1600 02071002 0e0f0000 0a100300 0e00010a 2000
> c1aaeb00 1632504740 S Ci:1:005:0 s 80 06 0200 0000 0009 9 <
> c1aaeb00 1632504981 C Ci:1:005:0 0 9 = 09025500 01010080 fa
> c1aaeb00 1632504993 S Ci:1:005:0 s 80 06 0200 0000 0055 85 <
> c1aaeb00 1632505230 C Ci:1:005:0 0 85 = 09025500 01010080 fa090400 00020806 50000705 81020002 00070502 02000200
> c1aae300 1632505248 S Ci:1:005:0 s 80 06 0300 0000 00ff 255 <
> c1aae300 1632505480 C Ci:1:005:0 0 4 = 04030904
> c1aae300 1632505485 S Ci:1:005:0 s 80 06 0302 0409 00ff 255 <
> c1aae300 1632505730 C Ci:1:005:0 0 26 = 1a034500 78007000 61006e00 73006900 6f006e00 20005300 5700
> c1aae300 1632505736 S Ci:1:005:0 s 80 06 0301 0409 00ff 255 <
> c1aae300 1632505980 C Ci:1:005:0 0 16 = 10035300 65006100 67006100 74006500
> c1aae300 1632505993 S Ci:1:005:0 s 80 06 0303 0409 00ff 255 <
> c1aae300 1632506231 C Ci:1:005:0 0 34 = 22033000 30003000 30003000 30003000 30004e00 41004300 44003200 35003600
> c1aae480 1632506395 S Co:1:005:0 s 00 09 0001 0000 0000 0
> c1aae480 1632506606 C Co:1:005:0 0 0
> c4b80280 1633528007 S Ci:1:005:0 s a1 fe 0000 0000 0001 1 <
> c4b80280 1633528140 C Ci:1:005:0 0 1 = 00
> c4b80280 1633528205 S Bo:1:005:2 -115 31 = 55534243 01000000 24000000 80000612 00000024 00000000 00000000 000000
> c4b80280 1633528264 C Bo:1:005:2 0 31 >
> d8d9e380 1633528270 S Bi:1:005:1 -115 36 <
> d8d9e380 1633528389 C Bi:1:005:1 0 36 = 00000612 5f002000 53656167 61746520 45787061 6e73696f 6e205357 20202020
> c4b80280 1633528394 S Bi:1:005:1 -115 13 <
> c4b80280 1633528513 C Bi:1:005:1 0 13 = 55534253 01000000 00000000 00
> c4b80280 1633528546 S Bo:1:005:2 -115 31 = 55534243 02000000 64000000 80000612 00000064 00000000 00000000 000000
> c4b80280 1633528639 C Bo:1:005:2 0 31 >
> d8d9e380 1633528643 S Bi:1:005:1 -115 100 <
> d8d9e380 1633528764 C Bi:1:005:1 0 100 = 00000612 5f002000 53656167 61746520 45787061 6e73696f 6e205357 20202020
> c4b80280 1633528768 S Bi:1:005:1 -115 13 <
> c4b80280 1633528889 C Bi:1:005:1 0 13 = 55534253 02000000 00000000 00
> c4b80280 1633529404 S Bo:1:005:2 -115 31 = 55534243 03000000 00000000 00000600 00000000 00000000 00000000 000000
> c4b80280 1633529515 C Bo:1:005:2 0 31 >
> c4b80280 1633529521 S Bi:1:005:1 -115 13 <
> c4b80280 1641551776 C Bi:1:005:1 0 13 = 55534253 03000000 00000000 01
> c4b80280 1641551785 S Bo:1:005:2 -115 31 = 55534243 04000000 60000000 80000603 00000060 00000000 00000000 000000
> c4b80280 1641551901 C Bo:1:005:2 0 31 >
> c4b80b00 1641551905 S Bi:1:005:1 -115 96 <
> c4b80b00 1641552027 C Bi:1:005:1 -121 18 = 70000200 0000000a 00000000 04010000 0000
> c4b80280 1641552031 S Bi:1:005:1 -115 13 <
> c4b80280 1641552401 C Bi:1:005:1 -32 0
> c4b80280 1641552404 S Co:1:005:0 s 02 01 0000 0081 0000 0
> c4b80280 1641552651 C Co:1:005:0 0 0
> c4b80280 1641552655 S Bi:1:005:1 -115 13 <
> c4b80280 1641552775 C Bi:1:005:1 0 13 = 55534253 04000000 4e000000 00
> c4b80280 1641552802 S Bo:1:005:2 -115 31 = 55534243 05000000 00000000 00000600 00000000 00000000 00000000 000000
> c4b80280 1641552901 C Bo:1:005:2 0 31 >
> c4b80280 1641552904 S Bi:1:005:1 -115 13 <
> c4b80280 1661610807 C Bi:1:005:1 0 13 = 55534253 05000000 00000000 01
> c4b80280 1661610819 S Bo:1:005:2 -115 31 = 55534243 06000000 60000000 80000603 00000060 00000000 00000000 000000
> c4b80280 1661610931 C Bo:1:005:2 0 31 >
> d8d9ee80 1661610937 S Bi:1:005:1 -115 96 <
> d8d9ee80 1661611057 C Bi:1:005:1 -121 18 = 70000200 0000000a 00000000 04010000 0000
> c4b80280 1661611063 S Bi:1:005:1 -115 13 <
> c4b80280 1661611431 C Bi:1:005:1 -32 0
> c4b80280 1661611436 S Co:1:005:0 s 02 01 0000 0081 0000 0
> c4b80280 1661611557 C Co:1:005:0 0 0
> c4b80280 1661611562 S Bi:1:005:1 -115 13 <
> c4b80280 1661611805 C Bi:1:005:1 0 13 = 55534253 06000000 4e000000 00
> c4b80280 1661611833 S Bo:1:005:2 -115 31 = 55534243 07000000 00000000 00000600 00000000 00000000 00000000 000000
> c4b80280 1661611931 C Bo:1:005:2 0 31 >
> c4b80280 1661611935 S Bi:1:005:1 -115 13 <
> c4b80280 1681669711 C Bi:1:005:1 0 13 = 55534253 07000000 00000000 01
> c4b80280 1681669720 S Bo:1:005:2 -115 31 = 55534243 08000000 60000000 80000603 00000060 00000000 00000000 000000
> c4b80280 1681669835 C Bo:1:005:2 0 31 >
> c4b80b00 1681669840 S Bi:1:005:1 -115 96 <
> c4b80b00 1681669962 C Bi:1:005:1 -121 18 = 70000200 0000000a 00000000 04010000 0000
> c4b80280 1681669966 S Bi:1:005:1 -115 13 <
> c4b80280 1681670337 C Bi:1:005:1 -32 0
> c4b80280 1681670341 S Co:1:005:0 s 02 01 0000 0081 0000 0
> c4b80280 1681670585 C Co:1:005:0 0 0
> c4b80280 1681670589 S Bi:1:005:1 -115 13 <
> c4b80280 1681670710 C Bi:1:005:1 0 13 = 55534253 08000000 4e000000 00
> c4b80280 1681670737 S Bo:1:005:2 -115 31 = 55534243 09000000 00000000 00000600 00000000 00000000 00000000 000000
> c4b80280 1681670836 C Bo:1:005:2 0 31 >
> c4b80280 1681670839 S Bi:1:005:1 -115 13 <
> c4b80280 1701728616 C Bi:1:005:1 0 13 = 55534253 09000000 00000000 01
> c4b80280 1701728623 S Bo:1:005:2 -115 31 = 55534243 0a000000 60000000 80000603 00000060 00000000 00000000 000000
> c4b80280 1701728740 C Bo:1:005:2 0 31 >
> c4b80b00 1701728744 S Bi:1:005:1 -115 96 <
> c4b80b00 1701728866 C Bi:1:005:1 -121 18 = 70000200 0000000a 00000000 04010000 0000
> c4b80280 1701728870 S Bi:1:005:1 -115 13 <
> c4b80280 1701729241 C Bi:1:005:1 -32 0
> c4b80280 1701729245 S Co:1:005:0 s 02 01 0000 0081 0000 0
> c4b80280 1701729367 C Co:1:005:0 0 0
> c4b80280 1701729370 S Bi:1:005:1 -115 13 <
> c4b80280 1701729615 C Bi:1:005:1 0 13 = 55534253 0a000000 4e000000 00
> c4b80280 1701729654 S Bo:1:005:2 -115 31 = 55534243 0b000000 00000000 0000061b 01000001 00000000 00000000 000000
> c4b80280 1701729740 C Bo:1:005:2 0 31 >
> c4b80280 1701729743 S Bi:1:005:1 -115 13 <
> c4b80280 1721787521 C Bi:1:005:1 0 13 = 55534253 0b000000 00000000 01
> c4b80280 1721787529 S Bo:1:005:2 -115 31 = 55534243 0c000000 60000000 80000603 00000060 00000000 00000000 000000
> c4b80280 1721787645 C Bo:1:005:2 0 31 >
> c4b80b00 1721787650 S Bi:1:005:1 -115 96 <
> c4b80b00 1721787772 C Bi:1:005:1 -121 18 = 70000200 0000000a 00000000 04010000 0000
> c4b80280 1721787775 S Bi:1:005:1 -115 13 <
> c4b80280 1721788146 C Bi:1:005:1 -32 0
> c4b80280 1721788150 S Co:1:005:0 s 02 01 0000 0081 0000 0
> c4b80280 1721788396 C Co:1:005:0 0 0
> c4b80280 1721788399 S Bi:1:005:1 -115 13 <
> c4b80280 1721788520 C Bi:1:005:1 0 13 = 55534253 0c000000 4e000000 00
> c4b80280 1722808029 S Bo:1:005:2 -115 31 = 55534243 0d000000 00000000 00000600 00000000 00000000 00000000 000000
> c4b80280 1722808180 C Bo:1:005:2 0 31 >
> c4b80280 1722808183 S Bi:1:005:1 -115 13 <
> c4b80280 1742865459 C Bi:1:005:1 0 13 = 55534253 0d000000 00000000 01
> c4b80280 1742865469 S Bo:1:005:2 -115 31 = 55534243 0e000000 60000000 80000603 00000060 00000000 00000000 000000
> c4b80280 1742865584 C Bo:1:005:2 0 31 >
> d8d9e200 1742865589 S Bi:1:005:1 -115 96 <
> d8d9e200 1742865710 C Bi:1:005:1 -121 18 = 70000200 0000000a 00000000 04010000 0000
> c4b80280 1742865715 S Bi:1:005:1 -115 13 <
> c4b80280 1742866085 C Bi:1:005:1 -32 0
> c4b80280 1742866089 S Co:1:005:0 s 02 01 0000 0081 0000 0
> c4b80280 1742866334 C Co:1:005:0 0 0
> c4b80280 1742866339 S Bi:1:005:1 -115 13 <
> c4b80280 1742866459 C Bi:1:005:1 0 13 = 55534253 0e000000 4e000000 00
> c4b80280 1742866484 S Bo:1:005:2 -115 31 = 55534243 0f000000 00000000 00000600 00000000 00000000 00000000 000000
> c4b80280 1742866584 C Bo:1:005:2 0 31 >
> c4b80280 1742866588 S Bi:1:005:1 -115 13 <
> c4b80280 1762924364 C Bi:1:005:1 0 13 = 55534253 0f000000 00000000 01
> c4b80280 1762924373 S Bo:1:005:2 -115 31 = 55534243 10000000 60000000 80000603 00000060 00000000 00000000 000000
> c4b80280 1762924489 C Bo:1:005:2 0 31 >
> d8d9e280 1762924495 S Bi:1:005:1 -115 96 <
> d8d9e280 1762924615 C Bi:1:005:1 -121 18 = 70000200 0000000a 00000000 04010000 0000
> c4b80280 1762924620 S Bi:1:005:1 -115 13 <
> c4b80280 1762924989 C Bi:1:005:1 -32 0
> c4b80280 1762924993 S Co:1:005:0 s 02 01 0000 0081 0000 0
> c4b80280 1762925238 C Co:1:005:0 0 0
> c4b80280 1762925243 S Bi:1:005:1 -115 13 <
> c4b80280 1762925364 C Bi:1:005:1 0 13 = 55534253 10000000 4e000000 00
> c4b80280 1762925392 S Bo:1:005:2 -115 31 = 55534243 11000000 00000000 00000600 00000000 00000000 00000000 000000
> c4b80280 1762925489 C Bo:1:005:2 0 31 >
> c4b80280 1762925493 S Bi:1:005:1 -115 13 <
> c4b80280 1782983269 C Bi:1:005:1 0 13 = 55534253 11000000 00000000 01
> c4b80280 1782983277 S Bo:1:005:2 -115 31 = 55534243 12000000 60000000 80000603 00000060 00000000 00000000 000000
> c4b80280 1782983393 C Bo:1:005:2 0 31 >
> c4b80b00 1782983397 S Bi:1:005:1 -115 96 <
> c4b80b00 1782983519 C Bi:1:005:1 -121 18 = 70000200 0000000a 00000000 04010000 0000
> c4b80280 1782983523 S Bi:1:005:1 -115 13 <
> c4b80280 1782983894 C Bi:1:005:1 -32 0
> c4b80280 1782983898 S Co:1:005:0 s 02 01 0000 0081 0000 0
> c4b80280 1782984144 C Co:1:005:0 0 0
> c4b80280 1782984148 S Bi:1:005:1 -115 13 <
> c4b80280 1782984268 C Bi:1:005:1 0 13 = 55534253 12000000 4e000000 00
> c4b80280 1782984295 S Bo:1:005:2 -115 31 = 55534243 13000000 00000000 00000600 00000000 00000000 00000000 000000
> c4b80280 1782984393 C Bo:1:005:2 0 31 >
> c4b80280 1782984396 S Bi:1:005:1 -115 13 <
> c4b80280 1803042299 C Bi:1:005:1 0 13 = 55534253 13000000 00000000 01
> c4b80280 1803042307 S Bo:1:005:2 -115 31 = 55534243 14000000 60000000 80000603 00000060 00000000 00000000 000000
> c4b80280 1803042423 C Bo:1:005:2 0 31 >
> c4b80b00 1803042428 S Bi:1:005:1 -115 96 <
> c4b80b00 1803042549 C Bi:1:005:1 -121 18 = 70000200 0000000a 00000000 04010000 0000
> c4b80280 1803042553 S Bi:1:005:1 -115 13 <
> c4b80280 1803042924 C Bi:1:005:1 -32 0
> c4b80280 1803042927 S Co:1:005:0 s 02 01 0000 0081 0000 0
> c4b80280 1803043173 C Co:1:005:0 0 0
> c4b80280 1803043177 S Bi:1:005:1 -115 13 <
> c4b80280 1803043298 C Bi:1:005:1 0 13 = 55534253 14000000 4e000000 00
> c4b80280 1804056025 S Bo:1:005:2 -115 31 = 55534243 15000000 00000000 00000600 00000000 00000000 00000000 000000
> c4b80280 1804056082 C Bo:1:005:2 0 31 >
> c4b80280 1804056086 S Bi:1:005:1 -115 13 <
> c4b80280 1824113111 C Bi:1:005:1 0 13 = 55534253 15000000 00000000 01
> c4b80280 1824113122 S Bo:1:005:2 -115 31 = 55534243 16000000 60000000 80000603 00000060 00000000 00000000 000000
> c4b80280 1824113237 C Bo:1:005:2 0 31 >
> d8d9e100 1824113242 S Bi:1:005:1 -115 96 <
> d8d9e100 1824113363 C Bi:1:005:1 -121 18 = 70000200 0000000a 00000000 04010000 0000
> c4b80280 1824113368 S Bi:1:005:1 -115 13 <
> c4b80280 1824113737 C Bi:1:005:1 -32 0
> c4b80280 1824113742 S Co:1:005:0 s 02 01 0000 0081 0000 0
> c4b80280 1824113986 C Co:1:005:0 0 0
> c4b80280 1824113991 S Bi:1:005:1 -115 13 <
> c4b80280 1824114112 C Bi:1:005:1 0 13 = 55534253 16000000 4e000000 00
> c4b80280 1824114138 S Bo:1:005:2 -115 31 = 55534243 17000000 00000000 00000600 00000000 00000000 00000000 000000
> c4b80280 1824114237 C Bo:1:005:2 0 31 >
> c4b80280 1824114242 S Bi:1:005:1 -115 13 <
> c4b80280 1844172017 C Bi:1:005:1 0 13 = 55534253 17000000 00000000 01
> c4b80280 1844172026 S Bo:1:005:2 -115 31 = 55534243 18000000 60000000 80000603 00000060 00000000 00000000 000000
> c4b80280 1844172141 C Bo:1:005:2 0 31 >
> d8d9e980 1844172147 S Bi:1:005:1 -115 96 <
> d8d9e980 1844172267 C Bi:1:005:1 -121 18 = 70000200 0000000a 00000000 04010000 0000
> c4b80280 1844172272 S Bi:1:005:1 -115 13 <
> c4b80280 1844172642 C Bi:1:005:1 -32 0
> c4b80280 1844172646 S Co:1:005:0 s 02 01 0000 0081 0000 0
> c4b80280 1844172891 C Co:1:005:0 0 0
> c4b80280 1844172896 S Bi:1:005:1 -115 13 <
> c4b80280 1844173017 C Bi:1:005:1 0 13 = 55534253 18000000 4e000000 00
> c4b80280 1844173059 S Bo:1:005:2 -115 31 = 55534243 19000000 00000000 00000600 00000000 00000000 00000000 000000
> c4b80280 1844173141 C Bo:1:005:2 0 31 >
> c4b80280 1844173146 S Bi:1:005:1 -115 13 <
> c4b80280 1846480092 C Bi:1:005:1 -108 0
next prev parent reply other threads:[~2026-09-24 5:01 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-23 17:43 possible regression in usb-storage? Johann Klammer
2026-09-23 20:01 ` Johann Klammer
2026-09-24 2:08 ` Alan Stern
2026-09-24 5:00 ` Johann Klammer [this message]
2026-09-24 14:24 ` Alan Stern
2026-09-24 17:29 ` Johann Klammer
2026-09-24 5:18 ` Johann Klammer
2026-09-24 14:28 ` Alan Stern
2026-09-24 17:30 ` Johann Klammer
2026-09-24 17:53 ` Johann Klammer
2026-09-25 2:03 ` Alan Stern
2026-09-25 4:37 ` Johann Klammer
2026-09-25 6:20 ` Johann Klammer
2026-09-25 7:51 ` Johann Klammer
2026-09-25 13:06 ` Alan Stern
2026-09-25 17:28 ` Johann Klammer
2026-09-26 14:46 ` Alan Stern
2026-09-26 20:44 ` Johann Klammer
2026-09-28 1:22 ` Alan Stern
2026-09-28 3:15 ` Johann Klammer
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