Opened 16 years ago
Closed 15 years ago
#3048 closed bug (fixed)
IO Scheduler: "no more requests" panic
| Reported by: | heto | Owned by: | bonefish |
|---|---|---|---|
| Priority: | normal | Milestone: | R1 |
| Component: | System/Kernel | Version: | R1/Development |
| Keywords: | Cc: | ||
| Blocked By: | Blocking: | #3404 | |
| Platform: | x86 |
Description
Running Haiku hrev28387, I frequently (often several times a day) get PANIC: no more requests in the IO scheduler thread. There does not seem to be a reliable way to reproduce the bug; I have had it occur even immediately after the system has booted and Tracker has loaded, although usually the bug occurs after a couple hours of usage.
I'll attach a log with a backtrace. The backtrace always stops at a READ FAULT right after IOScheduler::_Scheduler, so it might not be very useful. I have a couple of blurry photos from earlier occurrences of the panic, and looking at them it seems that the arguments to IOScheduler::_Scheduler are always the same for the most part.
Attachments (3)
Change History (10)
by , 16 years ago
| Attachment: | no_more_requests_log.txt added |
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comment:1 by , 16 years ago
Can you please retry with a current revision? I have never seen this panic, and more recent revisions have the "read fault" problem in the stack traces fixed.
comment:2 by , 16 years ago
I updated to hrev28506, but still get the READ FAULT. In fact, I got three identical panics on the three first boots to the new revision before the post_install scripts had even finished (or at least they were run again on the next boot). I'll attach a trimmed serial log showing only one panic; I have the full serial log of the three boots if needed, though.
I installed Haiku under R5 by initialising the partition using R5 tools and copying the files from a haiku-files pre-alpha image to the Haiku partition also under R5. Maybe R5 lays out the files on the disk differently from bfs_shell and Haiku BFS driver and thus provokes the bug?
by , 16 years ago
| Attachment: | no-more-requests.r28506.trimmed.txt added |
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comment:3 by , 15 years ago
I just encountered the same problem with Haiku R1Alpha1 while updating the tree.
by , 15 years ago
| Attachment: | no-more-requests-R1Alpha1.jpg added |
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backtrace of the 'no more requests' panic
follow-up: 5 comment:4 by , 15 years ago
| Owner: | changed from to |
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| Version: | R1/pre-alpha1 → R1/Development |
comment:5 by , 15 years ago
Replying to axeld:
- version changed from R1/pre-alpha1 to R1/Development
I have only encountered this panic with R1/alpha1, because I have never run svn update on a newer revision. Will do so from now on and hopefully encounter this bug again in the coming months...
comment:7 by , 15 years ago
| Blocking: | 3404 added |
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backtrace from the panic