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Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
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If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2020:1077
With some corrupted vmcore files, the vmcore-dmesg.txt file can grow forever till the kdump disk is full. I have a patch. Is there a place to submit a pull request? --- a/SOURCES/dracut-kdump.sh +++ b/SOURCES/dracut-kdump.sh @@ -102,8 +102,8 @@ save_vmcore_dmesg_ssh() { local _opts="$3" local _location=$4 - echo "kdump: saving vmcore-dmesg.txt" - $_dmesg_collector /proc/vmcore | ssh $_opts $_location "dd of=$_path/vmcore-dmesg-incomplete.txt" + echo "kdump: saving vmcore-dmesg.txt, upto 100MB" + $_dmesg_collector /proc/vmcore | ssh $_opts $_location "dd of=$_path/vmcore-dmesg-incomplete.txt bs=512 count=204800" _exitcode=$? As an example, we had vmcore-dmesg.txt with full of repetitive disk error messages. It went on forever till the disk space on the net kdump server is full :) [22934393.135013] sd 0:0:0:0: [sda] tag#5 CDB: Read(10) 28 00 08 06 4c 98 00 00 08 00 [22934393.135258] blk_update_request: I/O error, dev sda, sector 134630552 [22934393.479637] sd 0:0:0:0: [sda] tag#6 FAILED Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK [22934393.479938] sd 0:0:0:0: [sda] tag#6 CDB: Read(10) 28 00 08 06 4c 98 00 00 08 00 [22934393.480184] blk_update_request: I/O error, dev sda, sector 134630552 [22934393.480603] sd 0:0:0:0: [sda] tag#7 FAILED Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK [22934393.480900] sd 0:0:0:0: [sda] tag#7 CDB: Read(10) 28 00 08 06 4c 98 00 00 08 00 [22934393.481145] blk_update_request: I/O error, dev sda, sector 134630552 [22934393.481668] sd 0:0:0:0: [sda] tag#8 FAILED Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK [22934393.481995] sd 0:0:0:0: [sda] tag#8 CDB: Read(10) 28 00 08 06 4c 98 00 00 08 00 ------ [22956100.179261] sd 0:0:0:0: [sda] tag#1 CDB: Read(10) 28 00 08 06 4c 98 00 00 08 00 [22956100.179507] blk_update_request: I/O error, dev sda, sector 134630552 [22956100.179926] sd 0:0:0:0: [sda] tag#2 FAILED Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK [22956100.180216] sd 0:0:0:0: [sda] tag#2 CDB: Read(10) 28 00 08 06 4c 98 00 00 08 00 [22956100.180461] blk_update_request: I/O error, dev sda, sector 134630552