* [Bug 115351] New: redundant pointless messages
@ 2016-03-27 19:48 bugzilla-daemon
2016-03-28 0:49 ` Douglas Gilbert
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: bugzilla-daemon @ 2016-03-27 19:48 UTC (permalink / raw)
To: linux-scsi
https://bugzilla.kernel.org/show_bug.cgi?id=115351
Bug ID: 115351
Summary: redundant pointless messages
Product: IO/Storage
Version: 2.5
Kernel Version: All
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: low
Priority: P1
Component: SCSI
Assignee: linux-scsi@vger.kernel.org
Reporter: spamme@ecybernard.com
Regression: No
First, why does it have to log "Very big device" 44 times on startup.
Second, Given the size of ALL modern hard drives an array of almost any size
probably triggers this warning.
Suggestion: just get rid of this pointless message. Maybe you should just
always use 16, or maybe for future proofing go to 24 or 32.
[ 2.518621] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 2.521082] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 2.530614] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 31.160167] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 31.162414] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 39.091369] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 39.093872] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 45.880219] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 48.171378] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 54.069779] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 54.074579] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 54.077133] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 77.748461] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 77.759371] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 84.549201] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 91.288396] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 104.879051] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 104.881052] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 118.411278] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 125.193326] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 125.194891] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 159.063910] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 159.067481] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 179.361285] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 179.364259] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 179.379481] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 199.666114] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 213.116560] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 213.118659] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 213.120798] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 213.123825] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 213.125164] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 233.471647] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 233.473467] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 251.053596] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 251.055879] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 251.057935] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 251.059881] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 257.699835] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 278.193261] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 326.820650] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 326.852786] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 346.504500] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 1233.124007] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
--
You are receiving this mail because:
You are the assignee for the bug.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Bug 115351] New: redundant pointless messages
2016-03-27 19:48 [Bug 115351] New: redundant pointless messages bugzilla-daemon
@ 2016-03-28 0:49 ` Douglas Gilbert
2016-03-28 0:55 ` [Bug 115351] " bugzilla-daemon
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Douglas Gilbert @ 2016-03-28 0:49 UTC (permalink / raw)
To: bugzilla-daemon, linux-scsi
On 16-03-27 03:48 PM, bugzilla-daemon@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=115351
>
> Bug ID: 115351
> Summary: redundant pointless messages
> Product: IO/Storage
> Version: 2.5
> Kernel Version: All
> Hardware: All
> OS: Linux
> Tree: Mainline
> Status: NEW
> Severity: low
> Priority: P1
> Component: SCSI
> Assignee: linux-scsi@vger.kernel.org
> Reporter: spamme@ecybernard.com
> Regression: No
>
> First, why does it have to log "Very big device" 44 times on startup.
> Second, Given the size of ALL modern hard drives an array of almost any size
> probably triggers this warning.
That will only occur if this function:
static int sd_try_rc16_first(struct scsi_device *sdp)
{
if (sdp->host->max_cmd_len < 16)
return 0;
if (sdp->try_rc_10_first)
return 0;
if (sdp->scsi_level > SCSI_SPC_2)
return 1;
if (scsi_device_protection(sdp))
return 1;
return 0;
}
returns zero and the disks in question have more than 2**32 - 1
logical blocks. [For 512 byte blocks that is 2 TiB, for 4096 byte
blocks that is 16 TiB.] Modern SCSI (SAS) disks should be reporting
SPC-3 or higher compliance as should virtual disks in any properly
configured array.
> Suggestion: just get rid of this pointless message. Maybe you should just
> always use 16, or maybe for future proofing go to 24 or 32.
The 2**64 logical block maximum in the READ CAPACITY(16) response
should be sufficient, for the time being.
Request: find out why sd_try_rc16_first() returns zero.
Doug Gilbert
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 115351] redundant pointless messages
2016-03-27 19:48 [Bug 115351] New: redundant pointless messages bugzilla-daemon
2016-03-28 0:49 ` Douglas Gilbert
@ 2016-03-28 0:55 ` bugzilla-daemon
2016-03-28 1:14 ` bugzilla-daemon
2016-03-28 1:38 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2016-03-28 0:55 UTC (permalink / raw)
To: linux-scsi
https://bugzilla.kernel.org/show_bug.cgi?id=115351
--- Comment #1 from d gilbert <dgilbert@interlog.com> ---
On 16-03-27 03:48 PM, bugzilla-daemon@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=115351
>
> Bug ID: 115351
> Summary: redundant pointless messages
> Product: IO/Storage
> Version: 2.5
> Kernel Version: All
> Hardware: All
> OS: Linux
> Tree: Mainline
> Status: NEW
> Severity: low
> Priority: P1
> Component: SCSI
> Assignee: linux-scsi@vger.kernel.org
> Reporter: spamme@ecybernard.com
> Regression: No
>
> First, why does it have to log "Very big device" 44 times on startup.
> Second, Given the size of ALL modern hard drives an array of almost any size
> probably triggers this warning.
That will only occur if this function:
static int sd_try_rc16_first(struct scsi_device *sdp)
{
if (sdp->host->max_cmd_len < 16)
return 0;
if (sdp->try_rc_10_first)
return 0;
if (sdp->scsi_level > SCSI_SPC_2)
return 1;
if (scsi_device_protection(sdp))
return 1;
return 0;
}
returns zero and the disks in question have more than 2**32 - 1
logical blocks. [For 512 byte blocks that is 2 TiB, for 4096 byte
blocks that is 16 TiB.] Modern SCSI (SAS) disks should be reporting
SPC-3 or higher compliance as should virtual disks in any properly
configured array.
> Suggestion: just get rid of this pointless message. Maybe you should just
> always use 16, or maybe for future proofing go to 24 or 32.
The 2**64 logical block maximum in the READ CAPACITY(16) response
should be sufficient, for the time being.
Request: find out why sd_try_rc16_first() returns zero.
Doug Gilbert
--
You are receiving this mail because:
You are the assignee for the bug.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 115351] redundant pointless messages
2016-03-27 19:48 [Bug 115351] New: redundant pointless messages bugzilla-daemon
2016-03-28 0:49 ` Douglas Gilbert
2016-03-28 0:55 ` [Bug 115351] " bugzilla-daemon
@ 2016-03-28 1:14 ` bugzilla-daemon
2016-03-28 1:38 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2016-03-28 1:14 UTC (permalink / raw)
To: linux-scsi
https://bugzilla.kernel.org/show_bug.cgi?id=115351
--- Comment #2 from Jonathan <spamme@ecybernard.com> ---
clearly if 16 is enough for 2^64 then just get rid of the error message all
together, and call it done.
I don't know why sd_try_rc16_first() returns zero.
I don't even know how to find out.
This is all the dmesg reveals:
[ 2.520235] AAC0: kernel 7.5-0[32084] Jun 15 2015
[ 2.520240] AAC0: monitor 7.5-0[32084]
[ 2.520241] AAC0: bios 7.5-0[32084]
[ 2.520243] AAC0: serial ########
[ 2.520244] AAC0: Non-DASD support enabled.
[ 2.520246] AAC0: 64bit support enabled.
[ 2.520247] AAC0: 64 Bit DAC enabled
[ 2.520524] scsi host4: aacraid
[ 2.530234] scsi host5: pata_atiixp
[ 2.530480] scsi 4:0:0:0: Direct-Access ASR7168 Tardis V1.0
PQ: 0 ANSI: 2
[ 2.530631] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 2.530687] sd 4:0:0:0: [sdc] 19503493120 512-byte logical blocks: (9.99
TB/9.08 TiB)
[ 2.530697] sd 4:0:0:0: [sdc] Write Protect is off
[ 2.530699] sd 4:0:0:0: [sdc] Mode Sense: 12 00 10 08
[ 2.530706] sd 4:0:0:0: Attached scsi generic sg2 type 0
[ 2.530730] sd 4:0:0:0: [sdc] Write cache: disabled, read cache: enabled,
supports DPO and FUA
[ 2.530891] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
[ 2.531195] sd 4:0:0:0: [sdc] Very big device. Trying to use READ
CAPACITY(16).
--
You are receiving this mail because:
You are the assignee for the bug.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug 115351] redundant pointless messages
2016-03-27 19:48 [Bug 115351] New: redundant pointless messages bugzilla-daemon
` (2 preceding siblings ...)
2016-03-28 1:14 ` bugzilla-daemon
@ 2016-03-28 1:38 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2016-03-28 1:38 UTC (permalink / raw)
To: linux-scsi
https://bugzilla.kernel.org/show_bug.cgi?id=115351
--- Comment #3 from Jonathan <spamme@ecybernard.com> ---
scsi 4:3:0:0: Wrong diagnostic page; asked for 7 got 0
I get bunches of these
--
You are receiving this mail because:
You are the assignee for the bug.
^ permalink raw reply [flat|nested] 5+ messages in thread
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2016-03-27 19:48 [Bug 115351] New: redundant pointless messages bugzilla-daemon
2016-03-28 0:49 ` Douglas Gilbert
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2016-03-28 1:14 ` bugzilla-daemon
2016-03-28 1:38 ` bugzilla-daemon
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