[arch-general] Extremely slow battery status on MBP
Apologies for the repeat posting--I think my previous posting ended up bouncing due to some misconfigured dmarc settings. Anyways, I have kind of a weird issue that I'm having trouble debugging. On my MacBook Pro (11,1), checking battery status (through acpi or the /sys filesystem) becomes extremely slow after the computer's been on for a while. Here's an example: $ time cat /sys/class/power_supply/BAT0/status Charging real 0m54.519s user 0m0.000s sys 0m4.663s dmesg and journalctl aren't outputting anything during the call, and I tried strace during the command and there was no output during the blocked time. It's highly intermittent--acpi can take anywhere from 0-60 seconds with no discernible pattern, except that it doesn't happen when the battery is plugged in and charged. Any ideas for how to debug this further, or possible solutions? Thanks so much!
On Fri, Aug 28, 2015, at 02:40 PM, Emanuel Evans wrote:
Apologies for the repeat posting--I think my previous posting ended up bouncing due to some misconfigured dmarc settings.
Your email actually got through successfully. I saved the thread in case anyone figured it out. (I regrettably can't solve your problem, however.)
On 08/28/2015 02:22 PM, Christian Demsar wrote:
On Fri, Aug 28, 2015, at 02:40 PM, Emanuel Evans wrote:
Apologies for the repeat posting--I think my previous posting ended up bouncing due to some misconfigured dmarc settings. Your email actually got through successfully. I saved the thread in case anyone figured it out. (I regrettably can't solve your problem, however.)
An archive of messages sent to this mailing list (and most mailman hosted lists) is available here: https://lists.archlinux.org/pipermail/arch-general/ You can find these archive links by clicking the "mailing lists" link on the home page and then clicking arch-general. Natu
On Fri, Aug 28, 2015 at 11:40:15AM -0700, Emanuel Evans wrote:
Apologies for the repeat posting--I think my previous posting ended up bouncing due to some misconfigured dmarc settings. Anyways, I have kind of a weird issue that I'm having trouble debugging. On my MacBook Pro (11,1), checking battery status (through acpi or the /sys filesystem) becomes extremely slow after the computer's been on for a while. Here's an example:
$ time cat /sys/class/power_supply/BAT0/status Charging
real 0m54.519s user 0m0.000s sys 0m4.663s
dmesg and journalctl aren't outputting anything during the call, and I tried strace during the command and there was no output during the blocked time. It's highly intermittent--acpi can take anywhere from 0-60 seconds with no discernible pattern, except that it doesn't happen when the battery is plugged in and charged. Any ideas for how to debug this further, or possible solutions? Thanks so much!
I'm experiencing the same issue on my MacBook Pro (10,2). AFAIK it is caused by the sbs kernel module so you might be better off asking on the kernel mailing list. There is also a relevant bug report [1]. [1] https://bugzilla.kernel.org/show_bug.cgi?id=94651
Panayiotis Tembriotis <panayiotis.tembriotis@gmail.com> writes:
I'm experiencing the same issue on my MacBook Pro (10,2). AFAIK it is caused by the sbs kernel module so you might be better off asking on the kernel mailing list. There is also a relevant bug report [1].
Thanks so much for the pointer, I'll follow up there.
On Sat, Aug 29, 2015 at 07:55:25AM -0700, Emanuel Evans wrote:
Panayiotis Tembriotis <panayiotis.tembriotis@gmail.com> writes:
I'm experiencing the same issue on my MacBook Pro (10,2). AFAIK it is caused by the sbs kernel module so you might be better off asking on the kernel mailing list. There is also a relevant bug report [1].
Thanks so much for the pointer, I'll follow up there.
There is also a test for the SBS hang here [1], though I haven't tried it myself yet. [1] http://thread.gmane.org/gmane.linux.acpi.devel/74929/focus=75552
participants (4)
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Christian Demsar
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Emanuel Evans
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Natu
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Panayiotis Tembriotis